Re: T-18 four speed to 225???
Depends on what the short shaft 18 is from. If I remember correctly there are approximately 12 different input shaft lengths used on the T-18. Two in Wagoneers and J-trucks alone! If it is from a Ford then that is what you want. Again, you can use a scatter shield which the Ford T-18 will bolt right up to but will need an adapter and new output shaft for the rear, or you can weld the ears on the transmission and bolt up to a stock CAR TYPE Buick Bellhousing (sorry, I should've been clearer earlier on this point), Or a CJ type that did not use the integral adapter built in to the bellhousing. The Ford main drive gear (input shaft) is the correct length for a stock depth GM bellhousing (car depth). You will have to machine down the bearing retainer because the ford unit is too large of a diameter, a little too long, and won't accept the GM throwout bearing. You will also need to machine the center of a GM pilot bushing as the pilot on the Ford main drive gear is a larger diameter or you can buy one already done.
This will give you the shortest combination of parts. If you need to source any of these parts, e-mail me privately and I can give you the # of someone who has Ford cases already welded to bolt directly to GM bellhousing, Machined pilot bushings, machined bearing retainers, and Ford input gears, all in stock. They also sell T-18's all ready to go with a machined STEEL adapter to 18 or 20 case all rebuilt ready to bolt up to GM bellhousing, Ford or T-150 bellhousings, etc. Nickmil.