Crossmember, ” 4L80E – in 1978 to 1983 G-Body “
#35XM-X. The G-Force Performance Racing Crossmember is a heavy duty, double hump transmission crossmember that was designed and fabricated exclusively for 1978 thru 1983 G-Body cars and is manufactured new from 2″ x 3″ (1/8″ wall) rectangular and 1/2″ plate steel. And best of all – IT BOLTS IN – no guessing, no cutting, no cussin’! This crossmember is built to take BIG BLOCK punishment and will also stiffen your frame to help straighten out launches. Another benefit of this crossmember is that installing a dual exhaust is a simple bolt-on operation that will provide clean, professional results. No floor pan modifications are necessary. Comes black powder coated only. This crossmember fits 1978 -1983 G-Body cars with a 4L80E transmission. *Note: For 1984-88 vehicles buy #35XM, crossmember and frame extension kit.