Difference between 1650 torque and 2050 torque clutch

There are some choices but you way have to order something special. My local distributor always had something that worked.
I thank the most torque is put on clutches in the higher gears under load. Nothing to do with damage from shock loads in lower gears.

 

A clutch will always slip in the highest gear first and at peak torque. Maybe it's just time for replacement not necessarily an upgrade. If its slipped enough for you to notice under load , I would definalty get it apart sooner than later cuz its days have to be numbered. Go heavier if you really feel it, but there really is no need to go heavier than the trans is rated.

 

Just bolt a 2050 Eaton easy pedal in.

Your 1650 is not up to the task with the new tune. One thing about adding horse power , you always find the next weakest link. And this case it's your clutch.

 

Have not seen that done yet. Driveshafts yes.
These later model rears are pretty tough. Run real synthetic gear oil, it runs cooler. Hope you have a trans cooler.
Don't be hard on it around the yard. I have seen much more damage from big power spinning a wheel on sand covered black top and grabbing, lunging in holes and banging trailers than running down the road.

 

Its cooked. It will just get worse and worse now. Time to replace with higher rated clutch

 

If you're going for more ponies anyway then just get a higher torque clutch if what you have is slipping.

 

Sense you mentioned you know a little of the diesel performance side of pickups, look up south bend clutches. They do all kinds of clutches for the smaller diesels but not sure about class 8 stuff.