As the title implies I have ran into an issue on my project. I have sourced and rebuilt a t5 from an 87 s10 pickup to plug into my 53 chev. After running the math it was apparent I was going to need a new driven gear to correct the speedometer. Here is my problem, the square hole in the new driven gear that receives the speedometer cable is slightly larger] than the stock gear that came in my transmission. The cable has what seems like too much slop. Is there some kind of bushing that’s available for these GM gears?
Solder on cable , file to fit Or JB weld , Or shim stock in driven gear Or source old speedo build kits
I don’t know where you got that gear but it looks like a .124 square instead of the standard.104 square that all GM driven gears have. I would get another driven gear. The S10 gears only ranged from 18 to 22 teeth and each tooth represents 5% when it comes to calibration, so you’re limited in that respect. I may take a ratio adapter to get it dialed in.
It doesn’t seem to be tapered. Here is a link to a video of the slop https://m.youtube.com/shorts/fRN7pMDiHUY
Thanks for the advice I will order a new gear from a different vendor and compare. From the calculations I require a 22.8 tooth gear but being that I am limited to up to 22 I figured the 22 tooth would be close enough.
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