Engine/Transmission (1998.5 - 2002) Input Shaft on the Auto Trans....Whose broke em & how?

[klaybus]

Considering adding a lock-up controller to my 47 RE Auto Transmission. Curious as to how many have broke the OEM Input Shaft & how? I have heard conflicting reports regarding the use of lockup devices & the OEM Input Shaft on the automatic transmission. I have been told that there is a approx. 27% failure on the OEM input shaft when a lockup controller device is installed. I have also heard that under routine normal driving that the OEM Input Shaft will be fine if under 350 RWHP. I am considering adding a lockup device & exhaust brake & would like to hear your experiences good & bad. My intention is to be able to lock up 2nd gear when needed & to be able to run an exhaust brake when pulling. No lock to lock shifts or drag racing\sled pulling as this is my daily driver.



Thanks,

Clay.

 

[Bob4x4]

One of my customers just lost his input and the splines on the output were distorted quite a bit. He dynoed at a lil over 350hp. (4x4)He has an ex brake,no lock-up devise, but had not used it with the trailer yet. Drag raced maybe 3-4 passes,it let go during a Quick accell/lane change with no trailer.



Bob

 

[Hahn007]

I am running an edge ez and an ATS transmission with the triple disk torque converter and the triple lock commander. I don't tow over 7k and have put my foot in the injectors more than once both loaded and unloaded and haven't had any problems yet (crossing fingers). Usually I end up just breaking traction when pulling away from the stop light with a heavy foot and with the trailer hooked up.

 

[zstroken]

It just depends. Some shafts hold 500 HP and some won't hold 350 HP.

 

[rweis]

I think that's why DTT has an option for a billet input shaft. And output shaft for 4x4 I think.



Bob Weis

 

[Bob4x4]

I think that's why DTT has an option for a billet input shaft. And output shaft for 4x4 I think.



Bob Weis

Thats right, thats why he has all 3 now Oo.



Bob

 

[justinp20012500]

Locked shifts



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Lucky break. This one just snapped where it splines into the hub. I have seen some that have splintered and taken out the pump and TC.