w/o Boot Width: 0.5625" Outer Diameter: 2.9375" Inner Diameter: 2.0625"
w/o Boot Width: 0.5625" Outer Diameter: 2.9375" Inner Diameter: 2.0625"
Under 15,000 (lb) Gross Vehicle Weight (GVW) without Boot
with GMC 4L65-E Transmission without Boot
Extension Housing to Transmission
Boot Type with GMC 4L65-E Transmission
Rear Lube
w/ Boot Width: 1.625" Outer Diameter: 3.125" Inner Diameter: 2.0625"
w/ Boot Width: 1.625" Outer Diameter: 3.125" Inner Diameter: 2.0625"
w/ Boot
Boot Type 1.500 (in) Width with GMC 4L80-E Transmission
Extension Housing to Transmission
Over 15,000 (lb) Gross Vehicle Weight (GVW) without Boot
Browse our selection of quality automatic transmission extension housing seal parts designed specifically for your GMC Sierra 2500 HD. We carry options across multiple trim levels, body styles, and engine configurations to ensure a perfect fit.
AT4 · Base · Denali · Pro · SL · SLE · SLT · WT
Crew Cab Pickup · Extended Cab Pickup · Standard Cab Pickup
V8 6.0L · V8 6.6L · V8 8.1L
Automatic · Manual
