The Stovebolt Site Forums The Shop Area Driveline 62 Chevy 235 transmission swap

My '62 Chevy 235/6 was equipped with a worn out 3 speed manual trans with column shift. I have an overhauled S10 5 speed that I would like to use; it has the requisite shifter location and even has a new 14 spline 9 inch clutch disc with it. I've read through the tech tips and understand the basics, but so far I've been unable to find a reference that specifies a 60-66 235 install. Various sources say that I need to shorten the input shaft by up to 1/4 inch. I've also read that I need a spacer to bolt up to the bellhousing; but another source says that it bolts right up. I have a new stock pressure plate and throwout bearing. Will they work with this install? I could use some good advice here. Thanks, Bill

You need either a spacer or to shorten the input shaft, not both. My understanding if you shorten the shaft you will also need to lengthen the splines on the shaft. I haven't done this install, but reading up on it as an option for my 55 I think I would go with the spacer so if the tranny goes out on you you can get it replaced on the road without paying for the machine work.

I have a '55 1st series with a '62 261 engine and a T5 from a '85 S10. We removed about 3/8 from the forward shaft of the transmission. It slide right in. Looks like it was made for my truck. You need to check that the clutch release bearing works properly. If you decide to go with a spacer plate, no machining would be required. The spacer plate requires special machining. There is a guy in Washington state. He makes the machined spacer plate. I have dealt with him in the past. He is a good guy with lots of knowledge on the modifications. Do not do anything until you talk with him. The web site is listed below.
Larry

http://www.inliners.org/buffalo/index.htm

The same rules apply as in the older trucks. You need to cut off the front of the brg. retainer & shaft to match the same length as the old trans. You need to grind the grooves in the splines so the disc will slide back about 1/2 in further. Drill the mounting holes in the trans out to 1/2 in. The 9 in disc is a little small but works OK with a 6 cyl. I used it on the last one I did in my 56 & it works fine.