T5 Overdrive Transmission Adapter

5-Speed Your Flathead 6! The use of an adapter plate to mate the 4/6-cyl S-10 5-speed (T5) transmission to the Mopar flathead engine requires that you use the transmission with the longest input shaft and a clutch disc with a reversed offset hub to assure proper spline to clutch hub engagement. The input shaft also requires a special crankshaft pilot bushing. Our kit includes a machined aluminum adapter plate w/flat head machine screws, a clutch disc with a reversed offset hub, a longer clutch pivot bolt and an Oilite crankshaft pilot bushing. The popular transmission is the S-10 because its design offers the forward mounted shift lever. Its location is about 11” back from the flathead clutch housing or the early floor shift location. And, the S-10 tail housing can be installed on all T5 boxes. The adapter plate is 5/8” aluminum, blanchard ground and CNC’d to accurately mate the T5 to the stock clutch housing. The clutch disc is a GM 9-1/4” disc with an offset spline. The hub has been reversed to get more of the S-10 input shaft into the disc. The pilot is a high-quality Oilite bronze bearing. You are to supply your own clutch throw-out bearing and sleeve (collar). The stock Mopar clutch throw-out bearing and sleeve can be used by honing out the sleeve to match the S-10 bearing retainer. Or, the retainer could be turned down to mate to the sleeve. An alternative would be to press a sleeve over the stock S-10 bearing retainer and machine to accept a 1994-2001 Cherokee throw-out bearing assembly. This will mate to the later stock clutch fork. Another alternative is to use a Ford bearing retainer, which will accept the 1994-2001 Cherokee throw-out bearing assembly. The mounting flange on the Ford retainer needs to be turned down slightly to match the S-10 for piloting into the adapter plate. Before starting this project it is recommended that you become familiar with the B-W T5 transmission. There are many sites that cover the history of this design and give good information on its flexibility, available gear ratios and applications. You should also confer with a T5 specialist such as Tom Langdon in Utica, MI (586-739-9601) when you are ready to buy. Buyer concerns: Transmission to chassis mounting Emergency brake relocation Driveshaft modifications Speedometer (mechanical available on pre ’87 S-10s) Shift lever position (approx 11” back from stock) Kit cost is $295.00; postage inside USA is $17.00. Check, M.O. or Paypal to pjplymouth@netscape.net Price good until 3/30/2008. Paul Curtis 19319 Candlelight Roseville, MI 48066 586-296-2488

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