Stock Cherokees (XJ) rears are SOA, while Comanches (MJ) are SUA. Stock Comanche rear leaf springs are longer than XJ's and have a higher spring rate.

Front end lifts for XJs will work on MJs. Stock MJ coils have a higher rate than stock XJ coils.

 

Good luck in finding replacement parts.

I too have recently come into possession of a 1986 Jeep Comanche X, 2.5 liter AMC 4-cylinder, fuel injected, 5-speed, 4-WD. One of the main problems I see getting replacement parts is that AMC has been out of business for years. Third-party mechanical parts & sheet metal parts may not be too hard to find, but body trim & parts peculiar to your particular model may be another thing.

I am not having any luck finding a rear window gasket for my Comanche. The existing one leaks because it was modified by a previous owner & all I can do is to silicone the devil out of it.

 

Have you tried asking a body or auto glass shop? If that doesn't work, there has got to be a junkyard out there that has a good gasket. You could try here: J&W Auto Wreckers: New & Used Jeep Parts

 

Comanche rear glass gasket

I tried two auto glass shops & they called their distributors, one even called their distributor for classic autos, but to no avail. The distributors didn't even have a listing for the replacement glass.

 

Old49er, I sent a friend of mine who owns a body shop an email about your problem. According to him this is the P/N you need: 55007123. I do not know if that is the part number for an '86 or something later but he says the number is still good and it should be available. He says the glass is NLA. I hope this helps.

 

P/N for Comanche rear glass gasket

Andytron, thanks for the info. Is this an AMC P/N or from a parts distributor? If so, What distributor? TIA

 

I was hoping to see my friend today and ask him. However, I'm afraid that didn't happen. If I had to guess about the origin of the P/N he gave me, I'd guess its an AMC/Chrysler P/N. It may be worth a call to a dealer to ask if that is the right P/N and if so to check availability.

 

Try a shop where they build boats or repair trailers. They often have windows in weird dimensions and use a kind of universal rubber they sell per inch. You need some silicone paste or RTV to weld where the ends come together.

 

Check out places that sell parts for heavy equipment or tractors. Some of them use a generic type of rubber mount that has a groove on one edge for the glass, another groove on the other edge for the metal flange, and a specially shaped groove in the middle where you push in a rubber strip (spline) to push the edges apart and make it tight. Put the joint on the bottom, and use detergent for lubrication,