Engine/Transmission (1998.5 - 2002) What breaks 1st (auto transmission)

[JB @ C and L Machine]

Whats gonna go 1st with the bigger hp trucks? Input shaft... or will I take out the splines in the drum. . maybe the output shaft?

 

[BillGotthelf]

The lockup in the TC is the first thing to go. Next the clutchs are cooked. If you address those then the input shaft goes.

 

[Jim Fulmer]

More than likely(from experience) it's the direct clutch first then O/D clutches, as long as the converter has the same pressure as the clutch packs it will always hold more power, it has too as it has twice the surface area. I thought my stock transmission's converter was slipping as I could flash the RPM's in lockup, on the tear down the direct clutches were slipping, O/D were gone and the steels were blue... ... converter was fine when they opened it up!



Jim