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Detroit Diesel V8 6.2L and 6.5L; Duramax V8; Generation III V8s with modifications. These modifications include an additional bolt hole at the top of the pattern, and attachment points for cast oil pans to lower bellhousing extensions, to reduce NVH.
The Duramax I6 engine is a diesel engine available in select models of General Motors light-duty trucks and SUVs. Applications include the Chevrolet Silverado/GMC Sierra 1500 , Chevrolet Suburban/GMC Yukon XL , Chevrolet Tahoe/GMC Yukon , and Cadillac Escalade (both short wheelbase and ESV).
Borg-Warner T-50 transmission — 5-speed longitudinal manual - used by GM in its RWD H-Body cars and a few other limited light duty applications from 1976 to 1978; Tremec T-56 — 6-speed longitudinal manual overdrive made by Tremec; formerly made by Borg-Warner; Tremec TR-6060 — 6-speed longitudinal manual overdrive made by Tremec
L84 EcoTec3 5.3L V8 L87 EcoTec3 6.2L V8 LM2 Duramax Diesel 3.0L I6 LZ0 Duramax Diesel 3.0L I6: Transmission: 6-speed MYC 6L80 Automatic (2019–2021) 6-speed 6L90 automatic (2020-2023) 8-speed 8L90 automatic 10-speed Hydra-Matic 10L80 MF6 automatic 10-speed Allison 10L1000 MGM/MGU automatic: Dimensions; Wheelbase
For 1980, V8 engines became standard for the model line, with the 305 returning as the standard engine for 1981. For 1982, GM introduced a 6.2L Detroit Diesel V8 as a higher-efficiency alternative to the 454 V8. [52] A 3-speed manual transmission was offered through the 1980 model year, with a 4-speed manual offered through 1987.
The Allison 1000 transmission is paired with the optional Duramax turbo-diesel instead. For 2011, the HD models were upgraded with a new fully boxed high strength steel frame from front to rear improving stiffness by 92 percent with bigger rear springs, larger engine and transmission mounts and new hydraulic body mounts to improve the ride.
For the first two years, only a regular cab and 3-door extended cab were available (the 4-door extended cab was added for 2000), along with the 4.3L V6 and the new LS-based 4.8 L, 5.3 L, and 6.0 L V8 engines (a continuation of the 6.5L Detroit turbo diesel engine on 2500 trucks was actually planned, but ultimately cancelled) paired to a 5-speed ...
Allison 1000 attached to Duramax 6.6 Diesel. The LMM (engine code "6") debuted part way through 2007 and ended production with the start of the 2011 calendar year and is mated to the 6-speed Allison transmission. The LMM was the only Duramax offered for model years 2007–2010. [6] A version was used in the Trident Iceni. [7]