overdrive modifacations
Thread Starter
Junior Member
Joined: Dec 2004
Posts: 7
Likes: 0
From: Alabama
Car: 86 IROC Z28 TPI
Engine: 305
overdrive modifacations
What modifacations do I have to make to make my transmission stay in overdrive instead down shifting to fourth when I accelerate.
Senior Member
Joined: Mar 2003
Posts: 851
Likes: 3
From: vacaville,ca
Car: 1988 camaro z28,1997 camaro lt1
Engine: 355 afr 195 heads,tpis big mouth
Transmission: 700r-4 built by me 3-4 z pack
Axle/Gears: 3.42
go to the dealer and order the kit part number is 8673948.also you will have to take the valvebody down for the fix.
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