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Re: Advice on the gear ratio for 350 vortec with TH350 -
Agree with a 3.08. That's what I have on my 69 and it was a decent street ratio and also had no trouble pulling an 18' trailer with a full size tractor and shredder (no tall hills).
As for the ratio on your truck, in some cases there's a number stamped on top of the passenger side axle tube. Years of grime may have covered it so use a wire brush to clean it if it's crudded up. I found removing the passenger side tire gave me a better view of the number on mine.
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68 GMC 250/3 speed Saginaw p/b p/s
69 Chevy 350/350 currently in pieces still lookin for a cab
06 Trailblazer
I just want a vehicle that I can work on, that won't talk to me, leave error msgs or keep track of how I drive...
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