I am going to install my exhaust brake tomorrow on my 93CTD. I have to replace the original 30lb exhaust springs with new 60lb springs. I can't remember what year the 60lb spring began being installed at the factory. I need to know what year to ask for at the parts store, and would you guys go with genuine Cummins springs, or are the springs at my local NAPA store as good as the ones from Cummins?
Thanks

 

ONLY CUMMINS!!!!!!! i installed what i was told were cummins springs(but they weren't) and one BROKE a week later. and as far as i know, it wasn't until the 24v that 60lb came from the factory.

 

Thanks Swank. I suspected I would get that answer to only use the Genuine Cummins springs. Does anybody know the part number for the 60lb springs? I had the part number written down from awhile back, but cannot find it now and I am having trouble finding the post that gave that number again.

 

Nevermind...I just found a post that had the 60 lb spring part # of 3916691, and they have a white stripe on them.

 

Might as well get all 12 of them- you never know what you may do later. Give me a call or PM when you get aroud to it. I need to do this on my 92, and you are close enough I could watch and maybe learn something. I personally wouldnt buy engine internals from anyone but Cummins. NAPA gaskets have held fine for me, though.

Daniel