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Old 04-08-2022, 12:56 PM   #1
BrentBTK
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Join Date: Nov 2021
Location: Cumming, Ga
Posts: 163
TH350 shift firmness

I've got about 70 miles on my new motor install. SBC 385/409 HP/Tq mated to a TH350. Final gear ratio with my tires is about 3.21 I also replaced the torque converter with a 17-2100 RPM stall based on Blueprints recommendation. What I have noticed, is it seemed to shift much firmer before the swap. The shifts now are very soft. Is that related to the converter change? Anything simple I can do to firm things up a bit?
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