T18 JEEP TO CHEVY (9 STICKOUT)

Advance Adapter

This adapter plate assembly is used to adapt a GM Engine to the Jeep T-18 / T-98 4 speed manual transmission. The adapter plate is .500″ in length and is manufactured from 356-T6 heat treated aluminum alloy. Included in the adapter plate kit you will receive an adapter plate, pilot bushing, gasket, seal, fastening hardware, and adapter instructions.

Compatible Engines

• Chevy/GM Small Block V8
• Chevy/GM 4.3L V6
• Buick 225 & 231 V6

Note: This adapter plate kit only fits T-18 / T-98 transmission with a input shaft stick out of 9-3/8″

Note: With our adapter plates, we utilize a new front bearing retainer to obtain proper bell housing alignment. Chevy adapter plates we use a small index of 4.686″, (the larger index retainer, PN716078, can be substituted for the 5.125″ bell housing).

Transmission

The T-18 is a heavy duty four speed with unsynchronized first gear. These transmissions were manufactured by Borg Warner and they have a cast iron case. The casting number on the drivers side of the T-18 is T-18 or 13-01. The T-18 has a 1 1/8″ 10 spline input shaft and a 1 3/8″ 6 spline output.

The T-98 has a very similar appearance to the T-18 except a casting number of T98. It is heavy duty like the T-18. The T-98 has a 1 1/16″ 10 spline input shaft and 1 3/8″ 6 spline output.

Note: T-18 / T-98 with the 1 3/8 diameter input shaft cannot be used with our adapter plate kits.

Bill Of Materials

• LOCK WASHER 7/16 STD PLTD / 724303
• H.H.C.S. 7/16 -14 X 1-3/4 gr.5 zinc / 724308
• JEEP T18 BELLADAP PLATE 1-1/2 / 711521
• BUSHING- PILOT .629 TIP GM T90 / 716171
• JEEP T-15 3SP TO CHEVY V8 KIT / 712510