Jag Rear End Advice
I recently installed a Jag rear axle in my 1963 Rambler Classic wagon (pic at <a href="http://groups.msn.com/AMCsForever/," target="_blank">http://groups.msn.com/AMCsForever/,</a> look in "Classic GTW" album). Installation looks sweet -- used four link bars for trailing arms. But I made one mistake -- width of axle. Jaguar rear tread is only 1" wider than the stock Rambler axle, so no problems, right? No need to narrow axle. WRONG!! The stock Jag uses a deep backset wheel. Now go out and try to find deep backset (front wheel drive type) wheels with a 5 x 4.75" bolt pattern -- only a few are available. I settled on 15 x 7 Weld Racing Draglite Series 90. They are available with a 5.5" backset (4.5" and 3.5" as well). To keep the wheels looking the same all around, I ordered 1.5" thick bolt on spacers for the front wheels (AMC uses a 5 x 4.5" bolt pattern) so I could use 5.5" backset all around. The Weld wheels are drilled for both 5 x 4.5 and 4.75 bolt patterns. Another of the few choices was an American Racing Aero (I forget which series -- 106 or 606 -- I think it was 106). Those cost a good bit more ($230 each, Welds were $145 at Jeg's), so I took the cheaper way out. For anyone thinking of using a Jag axle I just thought I would point this out. It isn't difficult to narrow a Jag if you have a good welder and can hold the shafts and lower arm perfectly straight. This is usually done by machining the parts so that a piece of tubing will go over the solid axle or inside the hollow lower arm. Cut desired section out, machine, slip on/in tubing, MEASURE AGAIN, tack weld, MEASURE AGAIN!, then weld all around. The axles are forged steel, TIG or MIG weld. Since the axles use standard U-joints, you can have a driveshaft shop make tubular axles, mini driveshafts. Only other advice I can give is replace the diff seals while the thing is out, they are hard to get to later -- axle will have to come completely out again. <a href="http://www.jagoutlet.com" target="_blank">www.jagoutlet.com</a> is a good parts source, I bought everything I needed from there and they were usually the lowest cost, but quality parts.