Quote:
Originally Posted by rsk289
Can anyone give me some advice on Kirkham diffs in a 289, please?
My Kirkham diff has been in the car for about 4,000 miles now and has performed faultlessly. However I was on a run this weekend, but after pulling off the highway a loud screeching metallic noise became evident from somewhere in the rear of the car. I've checked everything over and can find no concerns with wheel bearing, brakes (no stones stuck etc.), inteference from cables etc.
In checking the driveshafts, I discovered that there is very noticeable up and down movement of the diff output shafts. I can move the right side one up and down about ⅛", and the left side one a bit less. I don't know if this right or not, but I've checked a spare Jag diff I have and that has no movement at all. There is a sort of star wheel adjuster in the casing which looks as if it can adjust the bearing and is held in position by a small locking plate.
Can anyone advise, please?
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A little movement in the side axles is normal in our differentials. It shouldn't affect anything. We use a roller bearing. The Jaguar, however, uses a double taper roller bearing because the 1/2 shaft acts as the upper control arm and there can't be any movement in their bearings or the wheel will move around.
That said, if you heard a grinding or a metallic sound that isn't good--I didn't know you heard a metallic screech and that the differential apparently isn't working.
I wonder if something failed internally??? Bearing? Ring gear bolt? I don't know. We have had very, very few problems with our differentials so I really can't say right now.
Even so, pack it up and we will fix it! Please make sure you send it to our new address and we will turn it right around for you. If it is our fault (very well may be) we will fix it for no charge.
On 2nd thought...we will fix it for no charge regardless. It sounds like something we sold isn't working for you and that isn't cool.
David
Kirkham Motorsports
304 E 900 S
Provo, Utah 84606