About 4 years ago I had a CV driveshaft and slip yoke eliminator installed. Currently trying to change the rear main seal. The T-case is the NP-231. The parts house insists they're sending the right seal, but it isn't. Would the SYE have changed the seal size/ type? If so does anyone have a part number for either National or Chicago Rawhide?
Much Thanks. Sunray Engineering built the rear end, but they are unfortunately no longer in business.
Trying to get ready for trail rides in Uwharrie again!

97tj, Shaved Ford 9 rear, 4:10's, New 35x12.5 BFG KM2's to test!, Warn x8000i, ARB's, Quick Disco's, Hand Throttle, & it's my DD. smile