Re: Question for the gearbox cognoscenti concerning reverse gears - Saab 900 Bulletin Board - Saabnet.com
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Re: Question for the gearbox cognoscenti concerning reverse gears
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Posted by S Carlson [Email] (more from S Carlson) on Sun, 27 Feb 2022 10:28:24 Share Post by Email
In Reply to: Re: Question for the gearbox cognoscenti concerning reverse gears, Cmyles [Profile/Gallery] , Sun, 27 Feb 2022 08:38:54
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Thanks for the response!

A bit more information: I'm building a chillcast box with the pre-1989 5-speed pinion shaft. I plan on using a primary-case from a pre-1989 "turbo" 5-speed box, with the extra bearing on the lower input shaft (even though I know it's probably not necessary, I have it so why not).

I machined a steel pinion housing to take a big bearing with this pre-'89 shaft, much like the old Swedish Dynamics ones. But steel. Here's a picture from before I machined the oil passage. I don't plan on making huge power, but I wanted a bulletproof gearbox and figured it might be fun to learn to use the big lathe for precision turning.

Forgive me if this is a stupid question, but can I use a '89> cluster gear and internals with this setup? Would that be a good way to go? I was under the impression that it was impossible, but maybe I am wrong.

And then, if I did that, are you saying that the 4-speed reverse gears may be compatible with the '89> cluster gear? How subtle is the incompatibility? If I put it together and try it out by hand, will I know? Or will an incompatibility between reverse teeth only be noticeable once I have it installed? Because that would be horrible.

Thanks for any advice or guidance you may have!

posted by 71.184.11...

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