The Dana 35 has a 7 9/16" ring and pinion and uses one piece axles
(2.625" in diameter). Starting in 1990 they switched to an inferior C-clip Dana 35c. The "c" in Dana 35c does not stand for C-clip, it stands for custom. They are custom because they are shipped incomplete from the Dana factory to Chysler and Chrysler completes the build. The two versions have different shafts, bearings, and carrier. There is a C-clip elminator kit available for the Dana 35c. The Dana 35c is probably on the small side for hard four wheeling with larger tires and lockers.
http://www.off-road.com/jeep/tech/axle/d35c.html