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Shifting way too early

Doba76

Well-Known Member
Local time
5:08 PM
Joined
Jan 9, 2013
Messages
88
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15
Location
Taber, Alberta
Is shifting early more a symptom of incorrect, or misadjusted linkage? Drove my big block 76 Cordoba for the first time after an engine swap the other night, and due to no registration or insurance yet, stuck to the alleys so speeds were extremely low. Can't recall what speed it was at, but upon trying to accelerate even slightly, the trans shifted into second and the car fell on its face. To the best of my knowledge, I'm using all the correct parts for the factory four barrel linkage, but have swapped out the TQ for a Carter AFB and Torker 383 (yes I know no the best manifold for the street, but it's what I had and the car runs great with it). Today I held the carb open at WOT and there was still a TON of movement in the rod until it was all the way back, was going to start by adjusting that, but should I be looking at my linkage at the carb as well? I'll take some pics after work and post them that show how everything looks.
 
Last edited:
Sounds like misadjusted linkage to me too.
 
Here's a pretty good little video on adjusting the kickdown and trans shift points.

 
i take the free play out of the linkage and then back the adjuster off a couple of turns. not have a little free play in the linkage can screw up the low speed down shifting when coming to a stop.
 
I agree tv linkage adjustment. My pickup would shift into 3rd by 12mph when I first got it running, adjust ed the linkage and now it's normal
 
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