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Rear Axle Problem
I have SPF #633 manufactured in 1999. Recently the left inner boot on the rear drive axle split, throwing grease. Whats more, when I grip the left shaft from below (near the differential) there is more than a 1/4 inch of play, and the wheel will rotate about 20 degrees and then the axle engages with a clunk. It seems the inner axle bearing is shot?? Trouble is, I'm not sure what brand of IRS I have. I've heard three possibilities:
1. Mustang Cobra rear end 2. Thunderbird rear end 3. Jaguar rear end Can anyone identify which "brand" of rear drive I have? Has anyone had a similar problem and can give some advice? Thanks |
That early of an SPF should have the typical 8.8 T-Bird 28 spline differential. The 1/4 inch seems excessive like maybe its not actually seated in the diff. If you take the rear control arm loose enough to be able to pry the axle stub out of the diff (you will need to do that anyway to replace the boot) there should be a retainer clip near the end of the splines and it should go in with a definite click. If the axle is shot you can problably get a replacement off the shelf Hillbank. There is also some aftermarket axles being done with better CV joints but I can't remember the name of the shop.. Check the SPF forum and someone there will know who it is.
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