03CDKJ wrote:
He's talking about CV shafts....

No the front drive shaft has two CV joints. The back (TC side) one doesn't use the normal accordion style boot and fails.
The best advise I can give is to make your own repairs, hire a smaller local shop that is known to do good work if really needed. The dealer should be avoided based on costs alone.
The front drive shaft is held in place with 6 bolts on both ends and is fairly easy to R+R without touching anything else on the vehicle despite what the manuals say.
We repaired Eugene's last fall. IIRC, it cost us less than a couple hundred to have a new CV put on the shaft at a local drive line shop. With us doing the R+R on the Jeep.
RockAuto is a good source for replacement shafts. Will cost more than having the shaft repaired, but the whole repair process can be done in one day instead of waiting for the DL shop. (Jeep is drivable while it's out though.)
2003 JEEP LIBERTY SPORT Drive ShaftI haven't had to do a pinion seal myself yet, but they don't read like they are hard to do.
2003 JEEP LIBERTY SPORT Differential Pinion Seal