4l60 won't move in drive but will in first?!?
#1
Staging Lane
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4l60 won't move in drive but will in first?!?
I just had this trans completely rebuilt and put a transgo reprogram kit and separator plate in it. When you put it in drive it just revs and tries to move like its slipping bad but you can put it in first and it grabs good and goes and can shift through second from there and so on... Any ideas why it doesn't like drive?
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sounds like the sprag is broken or it was put in backwards. in manual low the overrun clutches come on and will give the same function as the forward sprag as will the low reverse clutches and give the same function as the low roller clutch.