GMC Yukon Denali XL Fujita-Short-Ram-Mass-Air-Intake duced power to 380 lb/ft torque due to the limitation of the 8.5-inch axle capacity. 1500 Suburbans with the 6.5 L Turbo diesel used the 14 bolt axle from the 2500 series.Transmissions included the 4L60 4-speed automatic in the 1500 series, and the heavier duty 4L80 4-speed automatic in the 2500 series.The GMT400 series introduced independent front suspension for a more comfortable ride compared to older models. The 2WD models used coil springs and 4WD models used torsion bars in the front suspension. All models used a live axle and leaf springs in the rear.Trim options included a base-level v

Fujita-Short-Ram-Mass-Air-Intake The GMT400-based Suburbans were introduced in the 1992 model year. This was actually quite late compared to their pickup truck brethren-which switched platforms in the 1988 model year. Both 2WD and 4WD models, again designated C and K, were offered, as well as half ton and three-quarter ton (1500 and 2500) models.The base engine for all variants was the small-block 5.7 L (350 cu in) V-8. The big-block 7.4 L (454 cu in) V-8 was optional for the 2500 series. The optional 6.5 L Turbo diesel was available on all models-though rare on the 1500 series. The 6.5 L Turbo diesel used in the Tahoe was re