{"product_id":"tier-one-allison-1000-high-pressure-valve-body-todt1-a1000-avb-0405-2004-2005-gm-2500-3500-lly","title":"Tier One Allison 1000 High-Pressure Valve Body TODT1-A1000-AVB-0405 | 2004-2005 GM 2500 \u0026 3500 LLY","description":"\u003ch1 data-section-id=\"iod776\" data-start=\"312\" data-end=\"375\"\u003eAllison 1000 Valve Body Upgrade for 2004–2005 Duramax (LLY)\u003c\/h1\u003e\n\u003ch2 data-section-id=\"19r316w\" data-start=\"376\" data-end=\"437\"\u003eTier One High-Pressure Allison Valve Body – 1000+ HP Rated\u003c\/h2\u003e\n\u003cp data-start=\"439\" data-end=\"708\"\u003eLooking for the \u003cstrong data-start=\"455\" data-end=\"522\"\u003ebest Allison 1000 valve body upgrade for your 2004–2005 Duramax\u003c\/strong\u003e? The \u003cstrong data-start=\"528\" data-end=\"578\"\u003eTier One High-Pressure Allison 1000 Valve Body\u003c\/strong\u003e is engineered to deliver \u003cstrong data-start=\"604\" data-end=\"672\"\u003ehigher line pressure, faster shifting, and unmatched reliability\u003c\/strong\u003e for high-performance diesel trucks.\u003c\/p\u003e\n\u003cp data-start=\"710\" data-end=\"923\"\u003eBuilt specifically for \u003cstrong data-start=\"733\" data-end=\"790\"\u003eLLY Duramax Silverado and Sierra 2500HD\/3500HD trucks\u003c\/strong\u003e, this upgraded valve body supports \u003cstrong data-start=\"826\" data-end=\"850\"\u003eover 1000 horsepower\u003c\/strong\u003e and eliminates the common limitations of the factory Allison valve body.\u003c\/p\u003e\n\u003cp data-start=\"925\" data-end=\"1159\"\u003eIf your truck is equipped with \u003cstrong data-start=\"956\" data-end=\"1041\"\u003eDuramax tuning, larger turbochargers, upgraded injectors, or a built transmission\u003c\/strong\u003e, this is one of the most critical upgrades you can make to maintain proper shift control and transmission durability.\u003c\/p\u003e\n\u003cp data-start=\"1161\" data-end=\"1282\"\u003e✔ \u003cstrong data-start=\"1163\" data-end=\"1193\"\u003eDirect bolt-in replacement\u003c\/strong\u003e\u003cbr data-start=\"1193\" data-end=\"1196\"\u003e✔ \u003cstrong data-start=\"1198\" data-end=\"1229\"\u003eDyno-tested before shipping\u003c\/strong\u003e\u003cbr data-start=\"1229\" data-end=\"1232\"\u003e✔ \u003cstrong data-start=\"1234\" data-end=\"1282\"\u003eBuilt for high horsepower and heavy-duty use\u003c\/strong\u003e\u003c\/p\u003e\n\u003chr data-start=\"1284\" data-end=\"1287\"\u003e\n\u003ch1 data-section-id=\"1poh3st\" data-start=\"1289\" data-end=\"1332\"\u003eWhy Upgrade Your Allison 1000 Valve Body?\u003c\/h1\u003e\n\u003cp data-start=\"1334\" data-end=\"1596\"\u003eThe \u003cstrong data-start=\"1338\" data-end=\"1373\"\u003efactory Allison 1000 valve body\u003c\/strong\u003e in 2004–2005 Duramax trucks is known to struggle when power levels increase. As torque rises, the stock valve body can lose control of hydraulic pressure—leading to poor shifts, slipping, and potential transmission damage.\u003c\/p\u003e\n\u003cp data-start=\"1598\" data-end=\"1660\"\u003eUpgrading to a \u003cstrong data-start=\"1613\" data-end=\"1649\"\u003ehigh-pressure Allison valve body\u003c\/strong\u003e gives you:\u003c\/p\u003e\n\u003cul data-start=\"1662\" data-end=\"1962\"\u003e\n\u003cli data-section-id=\"nc439m\" data-start=\"1662\" data-end=\"1710\"\u003e\n\u003cp data-start=\"1664\" data-end=\"1710\"\u003eIncreased \u003cstrong data-start=\"1674\" data-end=\"1710\"\u003eline pressure control under load\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"hbalus\" data-start=\"1711\" data-end=\"1764\"\u003e\n\u003cp data-start=\"1713\" data-end=\"1764\"\u003eFaster, firmer, and more consistent \u003cstrong data-start=\"1749\" data-end=\"1764\"\u003egear shifts\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"v093h5\" data-start=\"1765\" data-end=\"1803\"\u003e\n\u003cp data-start=\"1767\" data-end=\"1803\"\u003eImproved \u003cstrong data-start=\"1776\" data-end=\"1803\"\u003eclutch holding strength\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"1v7c631\" data-start=\"1804\" data-end=\"1842\"\u003e\n\u003cp data-start=\"1806\" data-end=\"1842\"\u003eReduced \u003cstrong data-start=\"1814\" data-end=\"1842\"\u003eshift flare and slipping\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"1nsy886\" data-start=\"1843\" data-end=\"1905\"\u003e\n\u003cp data-start=\"1845\" data-end=\"1905\"\u003eBetter performance for \u003cstrong data-start=\"1868\" data-end=\"1905\"\u003etowing and high-horsepower builds\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"8e7m2j\" data-start=\"1906\" data-end=\"1962\"\u003e\n\u003cp data-start=\"1908\" data-end=\"1962\"\u003eIncreased \u003cstrong data-start=\"1918\" data-end=\"1962\"\u003eoverall Allison transmission reliability\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"1964\" data-end=\"2048\"\u003eIf you're pushing your Duramax beyond stock power levels, this upgrade is essential.\u003c\/p\u003e\n\u003chr data-start=\"2050\" data-end=\"2053\"\u003e\n\u003ch1 data-section-id=\"1cozroq\" data-start=\"2055\" data-end=\"2112\"\u003eTier One High-Pressure Allison 1000 Valve Body Features\u003c\/h1\u003e\n\u003cul data-start=\"2114\" data-end=\"2773\"\u003e\n\u003cli data-section-id=\"or86la\" data-start=\"2114\" data-end=\"2187\"\u003e\n\u003cp data-start=\"2116\" data-end=\"2187\"\u003eComplete \u003cstrong data-start=\"2125\" data-end=\"2185\"\u003eAllison 1000 valve body assembly with upgraded internals\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"19eoyen\" data-start=\"2188\" data-end=\"2247\"\u003e\n\u003cp data-start=\"2190\" data-end=\"2247\"\u003eDesigned for \u003cstrong data-start=\"2203\" data-end=\"2245\"\u003eDuramax trucks making 1000+ horsepower\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"1tlji06\" data-start=\"2248\" data-end=\"2308\"\u003e\n\u003cp data-start=\"2250\" data-end=\"2308\"\u003eHandles \u003cstrong data-start=\"2258\" data-end=\"2306\"\u003ehigher transmission line pressure than stock\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"nqcico\" data-start=\"2309\" data-end=\"2378\"\u003e\n\u003cp data-start=\"2311\" data-end=\"2378\"\u003eIncludes \u003cstrong data-start=\"2320\" data-end=\"2376\"\u003eTransGo Jr. shift kit for improved shift performance\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"1q9gesd\" data-start=\"2379\" data-end=\"2432\"\u003e\n\u003cp data-start=\"2381\" data-end=\"2432\"\u003eEquipped with \u003cstrong data-start=\"2395\" data-end=\"2430\"\u003enew Trim A and Trim B solenoids\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"15hn8ap\" data-start=\"2433\" data-end=\"2482\"\u003e\n\u003cp data-start=\"2435\" data-end=\"2482\"\u003eIncludes \u003cstrong data-start=\"2444\" data-end=\"2480\"\u003enew OEM pressure switch manifold\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"1hg44qt\" data-start=\"2483\" data-end=\"2533\"\u003e\n\u003cp data-start=\"2485\" data-end=\"2533\"\u003eProvides \u003cstrong data-start=\"2494\" data-end=\"2531\"\u003efirm, fast, and accurate shifting\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"ldq63x\" data-start=\"2534\" data-end=\"2585\"\u003e\n\u003cp data-start=\"2536\" data-end=\"2585\"\u003eFixes common \u003cstrong data-start=\"2549\" data-end=\"2583\"\u003eAllison 1000 valve body issues\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"1u3gdrk\" data-start=\"2586\" data-end=\"2672\"\u003e\n\u003cp data-start=\"2588\" data-end=\"2672\"\u003eHelps prevent transmission codes:\u003cbr data-start=\"2621\" data-end=\"2624\"\u003e\u003cstrong data-start=\"2626\" data-end=\"2670\"\u003eP0732, P0733, P0734, P0735, P0766, P0777\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"oopa3d\" data-start=\"2673\" data-end=\"2723\"\u003e\n\u003cp data-start=\"2675\" data-end=\"2723\"\u003e\u003cstrong data-start=\"2675\" data-end=\"2699\"\u003eDyno-tested in-house\u003c\/strong\u003e for quality assurance\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"1qh5rt8\" data-start=\"2724\" data-end=\"2773\"\u003e\n\u003cp data-start=\"2726\" data-end=\"2773\"\u003e\u003cstrong data-start=\"2726\" data-end=\"2748\"\u003eDirect replacement\u003c\/strong\u003e for factory valve body\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"2775\" data-end=\"2778\"\u003e\n\u003ch1 data-section-id=\"1h2mqqb\" data-start=\"2780\" data-end=\"2831\"\u003eBuilt for High-Horsepower LLY Duramax Performance\u003c\/h1\u003e\n\u003cp data-start=\"2833\" data-end=\"2981\"\u003eThe \u003cstrong data-start=\"2837\" data-end=\"2871\"\u003e2004–2005 LLY Duramax platform\u003c\/strong\u003e is capable of producing serious horsepower—but the factory transmission components often become a bottleneck.\u003c\/p\u003e\n\u003cp data-start=\"2983\" data-end=\"3138\"\u003eThe \u003cstrong data-start=\"2987\" data-end=\"3032\"\u003eTier One High-Pressure Allison Valve Body\u003c\/strong\u003e is engineered to handle increased torque and load by improving hydraulic control inside the transmission.\u003c\/p\u003e\n\u003cp data-start=\"3140\" data-end=\"3167\"\u003ePerfect for trucks running:\u003c\/p\u003e\n\u003cul data-start=\"3169\" data-end=\"3379\"\u003e\n\u003cli data-section-id=\"zk218p\" data-start=\"3169\" data-end=\"3198\"\u003e\n\u003cp data-start=\"3171\" data-end=\"3198\"\u003eCustom Duramax ECM tuning\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"hta6o2\" data-start=\"3199\" data-end=\"3235\"\u003e\n\u003cp data-start=\"3201\" data-end=\"3235\"\u003eLarger aftermarket turbochargers\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"1pps0oq\" data-start=\"3236\" data-end=\"3272\"\u003e\n\u003cp data-start=\"3238\" data-end=\"3272\"\u003eOversized or high-flow injectors\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"1idukcw\" data-start=\"3273\" data-end=\"3309\"\u003e\n\u003cp data-start=\"3275\" data-end=\"3309\"\u003eBuilt Allison 1000 transmissions\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"2h9qm8\" data-start=\"3310\" data-end=\"3341\"\u003e\n\u003cp data-start=\"3312\" data-end=\"3341\"\u003ePerformance exhaust systems\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"rnd8y\" data-start=\"3342\" data-end=\"3379\"\u003e\n\u003cp data-start=\"3344\" data-end=\"3379\"\u003eHeavy towing or work applications\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"3381\" data-end=\"3531\"\u003eWith a \u003cstrong data-start=\"3388\" data-end=\"3430\"\u003epower rating exceeding 1000 horsepower\u003c\/strong\u003e, this valve body gives your transmission the strength and control needed for real-world performance.\u003c\/p\u003e\n\u003chr data-start=\"3533\" data-end=\"3536\"\u003e\n\u003ch1 data-section-id=\"ivz257\" data-start=\"3538\" data-end=\"3591\"\u003eUpgraded Internal Components for Maximum Durability\u003c\/h1\u003e\n\u003cp data-start=\"3593\" data-end=\"3735\"\u003eEach Tier One valve body is built using a combination of \u003cstrong data-start=\"3650\" data-end=\"3696\"\u003eOEM-quality parts and performance upgrades\u003c\/strong\u003e designed to handle extreme conditions.\u003c\/p\u003e\n\u003ch3 data-section-id=\"1fy33mc\" data-start=\"3737\" data-end=\"3772\"\u003eTransGo Jr. Shift Kit Installed\u003c\/h3\u003e\n\u003cp data-start=\"3774\" data-end=\"3981\"\u003eEvery valve body includes a \u003cstrong data-start=\"3802\" data-end=\"3827\"\u003eTransGo Jr. shift kit\u003c\/strong\u003e, featuring hardened steel trim valves, upgraded springs, and precision components that increase clutch holding capacity and improve hydraulic efficiency.\u003c\/p\u003e\n\u003ch3 data-section-id=\"1nzs3f9\" data-start=\"3983\" data-end=\"4016\"\u003eNew Trim A \u0026amp; Trim B Solenoids\u003c\/h3\u003e\n\u003cp data-start=\"4018\" data-end=\"4140\"\u003eNew \u003cstrong data-start=\"4022\" data-end=\"4053\"\u003eTrim A and Trim B solenoids\u003c\/strong\u003e are installed and tested to ensure consistent pressure control and reliable operation.\u003c\/p\u003e\n\u003ch3 data-section-id=\"1x28874\" data-start=\"4142\" data-end=\"4178\"\u003eNew OEM Pressure Switch Manifold\u003c\/h3\u003e\n\u003cp data-start=\"4180\" data-end=\"4296\"\u003eA \u003cstrong data-start=\"4182\" data-end=\"4214\"\u003enew pressure switch manifold\u003c\/strong\u003e is included to prevent common failures and maintain proper transmission function.\u003c\/p\u003e\n\u003ch3 data-section-id=\"9qd7xa\" data-start=\"4298\" data-end=\"4326\"\u003eDyno-Tested Valve Bodies\u003c\/h3\u003e\n\u003cp data-start=\"4328\" data-end=\"4446\"\u003eAll valve bodies are \u003cstrong data-start=\"4349\" data-end=\"4379\"\u003etested on an in-house dyno\u003c\/strong\u003e to verify performance and ensure proper operation before shipping.\u003c\/p\u003e\n\u003chr data-start=\"4448\" data-end=\"4451\"\u003e\n\u003ch1 data-section-id=\"hdtw9u\" data-start=\"4453\" data-end=\"4500\"\u003eAllison 1000 Valve Body Fitment (Duramax LLY)\u003c\/h1\u003e\n\u003cp data-start=\"4502\" data-end=\"4523\"\u003eThis valve body fits:\u003c\/p\u003e\n\u003cp data-start=\"4525\" data-end=\"4628\"\u003e\u003cstrong data-start=\"4525\" data-end=\"4574\"\u003e2004 Chevrolet Silverado 2500HD Duramax (LLY)\u003c\/strong\u003e\u003cbr data-start=\"4574\" data-end=\"4577\"\u003e\u003cstrong data-start=\"4577\" data-end=\"4626\"\u003e2005 Chevrolet Silverado 2500HD Duramax (LLY)\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-start=\"4630\" data-end=\"4715\"\u003e\u003cstrong data-start=\"4630\" data-end=\"4670\"\u003e2004 GMC Sierra 2500HD Duramax (LLY)\u003c\/strong\u003e\u003cbr data-start=\"4670\" data-end=\"4673\"\u003e\u003cstrong data-start=\"4673\" data-end=\"4713\"\u003e2005 GMC Sierra 2500HD Duramax (LLY)\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-start=\"4717\" data-end=\"4817\"\u003e\u003cstrong data-start=\"4717\" data-end=\"4769\"\u003e2004–2005 Chevrolet Silverado 3500 Duramax (LLY)\u003c\/strong\u003e\u003cbr data-start=\"4769\" data-end=\"4772\"\u003e\u003cstrong data-start=\"4772\" data-end=\"4815\"\u003e2004–2005 GMC Sierra 3500 Duramax (LLY)\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-start=\"4819\" data-end=\"4860\"\u003e✔ Fits \u003cstrong data-start=\"4826\" data-end=\"4860\"\u003eAllison 1000 transmission only\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-start=\"4862\" data-end=\"4901\"\u003eAlso available for other Duramax years:\u003c\/p\u003e\n\u003cul data-start=\"4903\" data-end=\"4984\"\u003e\n\u003cli data-section-id=\"1gyqxhy\" data-start=\"4903\" data-end=\"4928\"\u003e\n\u003cp data-start=\"4905\" data-end=\"4928\"\u003e2001–2003 LB7 Duramax\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"1lrhf19\" data-start=\"4929\" data-end=\"4958\"\u003e\n\u003cp data-start=\"4931\" data-end=\"4958\"\u003e2006–2010 LBZ\/LMM Duramax\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"vydyi0\" data-start=\"4959\" data-end=\"4984\"\u003e\n\u003cp data-start=\"4961\" data-end=\"4984\"\u003e2011–2019 LML Duramax\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"4986\" data-end=\"4989\"\u003e\n\u003ch1 data-section-id=\"1doe6ye\" data-start=\"4991\" data-end=\"5029\"\u003eInstallation \u0026amp; Important Information\u003c\/h1\u003e\n\u003ch3 data-section-id=\"onw8sa\" data-start=\"5031\" data-end=\"5064\"\u003eTransmission Relearn Required\u003c\/h3\u003e\n\u003cp data-start=\"5066\" data-end=\"5197\"\u003eAfter installation, your Allison transmission will require a \u003cstrong data-start=\"5127\" data-end=\"5148\"\u003erelearn procedure\u003c\/strong\u003e to properly calibrate shift timing and pressure.\u003c\/p\u003e\n\u003ch3 data-section-id=\"10zvay8\" data-start=\"5199\" data-end=\"5251\"\u003ePump Upgrade Recommended for Maximum Performance\u003c\/h3\u003e\n\u003cp data-start=\"5253\" data-end=\"5400\"\u003eWhile this valve body increases line pressure and improves reliability, \u003cstrong data-start=\"5325\" data-end=\"5399\"\u003emaximum pressure gains require upgrading the Allison transmission pump\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp data-start=\"5402\" data-end=\"5513\"\u003eTier One includes \u003cstrong data-start=\"5420\" data-end=\"5456\"\u003eRatioTek pump upgrade components\u003c\/strong\u003e, though installation requires removing the transmission.\u003c\/p\u003e\n\u003ch3 data-section-id=\"1s7xor\" data-start=\"5515\" data-end=\"5542\"\u003eCore Charge Information\u003c\/h3\u003e\n\u003cp data-start=\"5544\" data-end=\"5605\"\u003eA \u003cstrong data-start=\"5546\" data-end=\"5577\"\u003e$500 refundable core charge\u003c\/strong\u003e applies to this valve body.\u003c\/p\u003e\n\u003cul data-start=\"5607\" data-end=\"5718\"\u003e\n\u003cli data-section-id=\"aulesd\" data-start=\"5607\" data-end=\"5675\"\u003e\n\u003cp data-start=\"5609\" data-end=\"5675\"\u003eRefunded once your original valve body is returned and inspected\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"ji8qzm\" data-start=\"5676\" data-end=\"5718\"\u003e\n\u003cp data-start=\"5678\" data-end=\"5718\"\u003eCan be waived with advance core return\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"5720\" data-end=\"5723\"\u003e\n\u003ch1 data-section-id=\"10brbef\" data-start=\"5725\" data-end=\"5773\"\u003eFrequently Asked Questions \u003c\/h1\u003e\n\u003ch3 data-section-id=\"p7peu\" data-start=\"5775\" data-end=\"5839\"\u003eWhat is the best valve body upgrade for a 2004–2005 Duramax?\u003c\/h3\u003e\n\u003cp data-start=\"5841\" data-end=\"6035\"\u003eThe \u003cstrong data-start=\"5845\" data-end=\"5890\"\u003eTier One High-Pressure Allison Valve Body\u003c\/strong\u003e is one of the top upgrades for LLY Duramax trucks, offering improved line pressure, better shifts, and support for high horsepower applications.\u003c\/p\u003e\n\u003ch3 data-section-id=\"1ag8sj\" data-start=\"6037\" data-end=\"6096\"\u003eDo I need a valve body upgrade for a tuned LLY Duramax?\u003c\/h3\u003e\n\u003cp data-start=\"6098\" data-end=\"6297\"\u003eYes—if your truck has \u003cstrong data-start=\"6120\" data-end=\"6186\"\u003emoderate to heavy tuning, upgraded turbo, or increased fueling\u003c\/strong\u003e, the stock valve body can struggle. Upgrading significantly improves transmission performance and reliability.\u003c\/p\u003e\n\u003ch3 data-section-id=\"1kvozxj\" data-start=\"6299\" data-end=\"6331\"\u003eWhat problems does this fix?\u003c\/h3\u003e\n\u003cp data-start=\"6333\" data-end=\"6363\"\u003eThis valve body helps resolve:\u003c\/p\u003e\n\u003cul data-start=\"6365\" data-end=\"6519\"\u003e\n\u003cli data-section-id=\"91v9lo\" data-start=\"6365\" data-end=\"6391\"\u003e\n\u003cp data-start=\"6367\" data-end=\"6391\"\u003eSoft or delayed shifts\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"1s1w1qg\" data-start=\"6392\" data-end=\"6417\"\u003e\n\u003cp data-start=\"6394\" data-end=\"6417\"\u003eTransmission slipping\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"9w6x1a\" data-start=\"6418\" data-end=\"6444\"\u003e\n\u003cp data-start=\"6420\" data-end=\"6444\"\u003eGear ratio error codes\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"1rootb8\" data-start=\"6445\" data-end=\"6475\"\u003e\n\u003cp data-start=\"6447\" data-end=\"6475\"\u003eInconsistent line pressure\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"1vttbp\" data-start=\"6476\" data-end=\"6519\"\u003e\n\u003cp data-start=\"6478\" data-end=\"6519\"\u003eCommon Allison 1000 valve body failures\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"6521\" data-end=\"6524\"\u003e\n\u003ch1 data-section-id=\"1ghoz9p\" data-start=\"6526\" data-end=\"6576\"\u003eOrder Your Allison 1000 Valve Body Upgrade Today\u003c\/h1\u003e\n\u003cp data-start=\"6578\" data-end=\"6773\"\u003eIf you want to \u003cstrong data-start=\"6593\" data-end=\"6715\"\u003eincrease transmission reliability, improve shift performance, and support serious horsepower in your 2004–2005 Duramax\u003c\/strong\u003e, this is one of the most important upgrades you can make.\u003c\/p\u003e\n\u003cp data-start=\"6775\" data-end=\"6918\"\u003eThe \u003cstrong data-start=\"6779\" data-end=\"6829\"\u003eTier One High-Pressure Allison 1000 Valve Body\u003c\/strong\u003e delivers the \u003cstrong data-start=\"6843\" data-end=\"6885\"\u003eline pressure, durability, and control\u003c\/strong\u003e your Allison transmission needs.\u003c\/p\u003e\n\u003chr data-start=\"6984\" data-end=\"6987\"\u003e\n\u003ch2 data-section-id=\"19f7ibl\" data-start=\"6989\" data-end=\"7008\"\u003eSEO Meta Title\u003c\/h2\u003e\n\u003cp data-start=\"7009\" data-end=\"7086\"\u003eAllison 1000 Valve Body Upgrade 2004-2005 Duramax LLY | High Pressure 1000HP+\u003c\/p\u003e\n\u003ch2 data-section-id=\"1tqm09z\" data-start=\"7088\" data-end=\"7113\"\u003eSEO Meta Description\u003c\/h2\u003e\n\u003cp data-start=\"7114\" data-end=\"7277\"\u003eUpgrade your 2004-2005 LLY Duramax with a high-pressure Allison 1000 valve body. Supports 1000+ HP, improves shifting, line pressure, and transmission reliability.\u003c\/p\u003e","brand":"Tier One Transmissions","offers":[{"title":"Default Title","offer_id":51906824044827,"sku":"TODT1-A1000-AVB-0405","price":799.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0962\/5757\/3147\/files\/TierOneAllison1000HighPressureValveBodyTODT1-A1000-AVB-0405.jpg?v=1773798568","url":"https:\/\/wwmperformance.com\/products\/tier-one-allison-1000-high-pressure-valve-body-todt1-a1000-avb-0405-2004-2005-gm-2500-3500-lly","provider":"WWM Performance","version":"1.0","type":"link"}