Northstar Engines and System Technical Discussion Discussion, 4T80E 3.11 to 3.71 swap in Cadillac Engine Technical Discussion; I have never done a swap from 3.11 to 3.71 gears. Bert want to wake up his DHS and make ...
I have never done a swap from 3.11 to 3.71 gears. Bert want to wake up his DHS and make it a DTS. I think The VIN Y cams are equal if not better in 03. I did some checking and it looks like 2 part numbers is all I will need.
#24205233 is a Carrier, Front Diff. INCLS 101 to 109.
#08678825 is the sun gear
Just the two parts. I can not say my price, but it is worth it. He has the 17" rims already. The difference between the 3.11 with 16" and the 3.71 with 17" is about 3 to 4 MPH at 70.
I would need to set the ABS up for the 3.71 also.
If you can get by without removing that snap ring, then do it. I don't know to be honest, but I don't know why I would go through all that work if they were the same part
But then again, maybe I just assumed they were different.
Is the snap ring the one for the sun gear that holds it in place on theoutput shaft?
The ring gear has a large snap ring on it also, but I should not have to take it out.
Warranty time is 3.5 hour to change it.
I have had so many of these tranys a part it is hard to remember. I am not talking about P0741, but the left aft shaft leak (3rd clutch housing failure) or 4th gear band burn up. I had a finnal drive out in the car once, so I know it can be done. I think 3.5 hrs is a lot of time for the way I did it. I have a special snap ring pliers for the output shaft snap ring.