I was camping last week in the wilds of British Columbia and I guess I somehow knocked on something and lost my rear diff fluid. About 500 KM's later, when climbing a long, long uphill paved road, my rear end locked up solid (the entire case was sizzling like a frying pan!). The truck is now at a garage 300 Km's away (I had to get towed back to the nearest town and take the bus home). Could have been a lot worse - I might have lost the axle on one of the remote logging roads that I was on the day before.
I'm having difficult confirming the rear axle configuration. There was no tag on the axle (long since fallen off). The truck is a 1989 Jeep Cherokee LTD (I've had it since new in 89) with the inline 6 and the factory light duty towing package. It's a 4 speed automatic SelecTrack transmission. According to some data sheets that I had sent to me from Jeep years ago for this specific vehicle, the rear axle is a Dana 35C. The gear ratio is listed as 3.5. Does a 35C with a 3.5 gear ratio sound right? I've done some limited Googling and can't find a reference to a 3.5 ratio!
The mechanic is suggesting replacing the entire rear axle with a used one, rather than a rebuild - which I agree with - but the axles are apparently difficult to find used in the ratio I need and he's quoting me $1000 just for a used 35c from Ontario, not including shipping or installation (seems a bit steep to me!). I'm going to try and find one locally and ship it to him myself but I'm not entirely clear on what my options are). Are there other axle options other than a specific one for an 89 XJ? I don't do a lot of 4 wheeling - occasional gravel/logging roads and driving through some snow in ski season so I don't need anything heavier than the original and I have limited to nil fabricating options.
As a side bar, assuming the rear end could be un-seized (apparently there's nothing busted - but the gears seem to be welded together), could I simply unhook the rear drive shaft and drive the truck the 300Km's home on the front axle (so I could do the rear axle swap myself) with the transmission in part time 4WD or is that liable to blow the transfer case and or the front diff? One more thing, there's some very long up and down, paved hills between where the truck is now and home.
As a second side bar, the tow truck driver that picked me up insisted that the truck had to go on dollies (for which I was charged extra) as the 4WD is never really fully disconnected. I was sure that I read in my owner's manual (now 300 Km's away) that a SelecTrack equipped XJ could be towed, front or rear wheels off the ground as long as the transfer case and the transmission were both in Neutral. Is that wrong? Thanks for any advice.