Can anyone tell me the name and or parts number of the bushing at the top of the pumpkin ( rear differential ) ?

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Comment by Tony and Ginny 429 on August 8, 2015 at 10:23am
Hey Joe
I think it might be something you picked up on the road ,as everything back there is metal ,in the location of the joint
The rear end would be floating around ,back there ,as the joint keeps the rear stable ,and in one location
Sure you would have a good idea the rear was have a problem ,if the joint was damaged
Sounds like yours is fine ,from your post
Comment by Jason Edge on August 8, 2015 at 10:17am

If the rear upper spherical (ball) joint comes a part the rear end will swing wildly left to right and usually bust out your fender skirts and damage your tires, rims and wheel covers. USA Parts sells new replacement rear upper ball joints new for $189.88 but you might check around at Rock Auto, etc. if you want to replace with new parts.

I sell the complete Rear Axle Upper Control Yoke (Arm)  and Spherical Joint (Ball Joint) as an assembly for $75 + s/h. I believe I still have the one from the 41K mile 1964 Fleetwood which would definitely be he best I have.

Comment by Joe DiIaconi on August 7, 2015 at 6:57pm

Thank you guys, if this was to have gone bad what would the symptoms be ?

I was at Jon's & had my car up on his lift and saw a piece of rubber, like a thread hanging down from it.

Comment by Jason Edge on August 7, 2015 at 1:57pm

Russ, is correct. just a nut at the bottom of a stud that goes through the flange in top of the differential casing. Here is a close up of it installed, and one with the stud and nut out of the differential: 

Comment by Russ Austin on August 7, 2015 at 7:55am

Joe, the spherical joint plugs right into the tab on the rear axle housing. Not sure of any bushing.


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