Yes we hurt it...Originally Posted by BillBoost37
2nd gear start too much boost 20 psi on the torque converter. The stock 4t65-hd on slicks in front still alive.
We will have to be more careful and limit torque off the line.
It is much stronger than the 4t65-hd... but not 200% stronger.
The failure doesn't seem to be a typical breakage of the 4t65-hd. Not the input, not the chains.
It seems related to the shift mechanism. It's like it popped out of the gear and slammed back in. But that bent something.
Whenever I apply good torque it falls in neutral or starts slipping.
I lose reverse or drive at different times now. It still runs and drives. It shifts all gears.
It just can't take the torque anymore.
James thinks it's related to a clogged filter and line pressure loss. I think I bent something in there, not pressure related.
We'll have to open it to see what's up. I will be running an Aurora torque converter next to reduce the torque load at low rpm.
It should allow more slip and not stay in the high torque danger zone as much as this super tight 4.6L converter.
