i have a 93 that has some minnor modifications done to it, its a 4 speed automatic that seems to be pretty good and shifts fine. I just installed a 3200 rpm gov spring and turned the fuel screw in to about 1 to 1 1/2 turns from runaway. The truck has an early hx35 that i believe to be off a 96 up 12v and a denny t stage 2 fuel pin. before installing the gov spring and turning fuel screw in i had the star wheel maxed out to the right (1 1/4 turns) and smoke screw is maxed out, and fuel pin was installed, the truck ran much better then stock. after instaling spring and fuel pin turn, the truck launches hard and runs great in 1st gear (more throtle response too) when it hits second gear it seems to fall on its face and doesnt pull like it should, once it shift into 3rd it picks up speed again as it should. i thought the kickdown cable was not properly adjusted and making it shift too early (2200 rpm) so i manually shifted into second (cranking it to 3000) and it still seemed to fall on its face, any ideas?

 

have the same problem 2nd gear it face plants and when it hits 3rd it pulls and spins them in the rain at 40 mph

 

Adjust your bands lately? Had issues with my 727 when it was turned way up without enough supporting mods. Don't know exactly how i resolved the issue, but I believe my one band was applying before the other was releasing. Your bands might be too tight.


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Thanks for the info, ill have my transmission guy at the dealership adjust em

 

It's either that or a binding servo.


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binding servo?

 

Basically a piston, fluid pushes it downward and in turn the lever that rides on the backside of the servo is actuated applying your band. Its a common problem for a servo to get crooked in the bore and bind. Idk if they bind applying or if they typically bind when released causing a band to drag.


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