Question about 4L60E - Hypertech or not?

[Wayne2]

I have the Hypertech Power Programmer already. My question is what is best for the life of the transmission? Stock shift firmness or firmer shift of the programmer?

Thanks.

[bigtruck21]

people say for the tranny to last the longest...it needs to stay the coolest and have quick/firm shifts. But this also means the drivetrain gets a little more abuse. Tranny vs u-joints.

[Wayne2]

Thanks. I'm O.K. with that. I can change U joints. I ain't much on auto tranny repairs.

[Bish]

I've got 101K on mine and 85K with max performance, firm shifts, and raised shift points on my 4L60E Mostly stock except for my sig. I do tranny flushes at 25K and tow a few times a month. I have done zero driveline repairs so far. Tranny has a slight slip in 2-3 shift at WOT but otherwise works great. Now I beat on my Tahoe pretty hard BUT I avoid shifting (D-R, R-D) when not completely stopped and I don't hammer the gas until it is fully in gear. Other than taht, I stomp on it pretty regulary especially on the highway.