Yukon Gear & Axle Dura Grip Positraction - GM 12 Bolt Car w/ 30 Spline Axles - 3.08 To 3.90 Ratio 911012 ΓÇó Installation of the BHS539 42036 Color:Clear to Red Prism PIT152 1985 1990 Chevrolet Caprice

Yukon Gear & Axle Dura Grip Positraction GM 12 Bolt Car w 30 Spline Axles 3.08 To 3.90 Ratio 911012 ΓÇó Installation of the BHS539 42036 Color:Clear to Red Prism PIT152 1985 1990 Chevrolet Caprice ΓÇó Installation of the BHS539 Crossmember Hoop requires cutting out the OEM upper transmission Tunnel hoop and hammer massaging the transmission tunnel to provide additional space for the BHS539 to install into the transmission tunnel ( see installation Instructions 199R12041) ΓÇó Requires the use of BHS532 Transmission Crossmember to maintain proper structural integrity of the vehicle 2 layer lightweight construction 100% polyester shell with 100% knitted mesh interior