FE100 Frame Extension (above) is for 1978 thru 1983 G-Body cars that will retrofit a 200R4 or TH400 trans. It adds the second set of crossmember mounting holes to the driver side frame rail in the same location as the 1984 thru 1988 G-Body cars.

If you have a 1978 thru 1983 G-Body and want to put in a 200R4, TH400 OR T-56 transmission, this part is required. If you have a 1984 thru 1988 G-Body the FE100 is not required for any transmission……$59.00

RCGT56 (Fits T-56 from '93-'97 F-Body)

RCGT-56 Crossmember will fit all 1984 thru 1988 G-Body cars with a Factory Camaro/Firebird T-56 Transmission. For 1978 thru 1983 cars, add the FE100 Frame Extension. Comes with mounting hardware and instructions…………$259.00

"K" Kit - RCG200/400 + FE100 ('78 - '83 only)

RCG200/400K Crossmember Kit, for 1978 – 1983 G-Body cars with a 200R4 or TH400 short tail Transmission. Comes with RC200/400 Crossmember, FE100 Frame Extension, mounting hardware, and instructions………$259.00

RCG200/400 Crossmember will fit all 1984 thru 1988 G-Body cars with a 200R4 or TH400 short tail Transmission. Comes with mounting hardware and instructions……………………..………………………………$219.00