Differential Bracket Mounting Holes Won�t Line Up - 64

[Jace H.]

[Bill W.]

[Harry S.]

[Duke W.]

[Frank D.]

The spring force causes the nose of the axle rotate up when the bracket is removed. IIRC the shop manual says to place a wood block between the nose of the axle and the body when disconnecting the front bracket, or you can use a pry bar between the bracket an axle to lever the axle to a point where you can install the bolts.

There is no need to disconnect the spring.

Duke

Spot on Duke, that is exactly right... A little time spent in the GM documentation before tackling a job can save some grief...from the '67 shop manual..but pretty sure it applies to all midyears.

[Jace H.]

[Jace H.]

[Duke W.]

[Joe L.]

I just replaced the driveshaft in my 64. I dropped the diff bracket to make it easier. The new driveshaft went in nicely. When getting the diff bracket tightened down I noticed that the front holes won’t line up with the diff. I have tightened the cushion bolt as far as I can. The cushion is the original. It’s obvious that the cushion needs to be compressed another 1/8 to 1/4 inch in order for those front holes to line up. I did not remove the long back bolt and just swung the bracket downward out of the way of the rear U joint. What’s the trick? Any suggestions appreciated.

Thanks
Jace

Jace-------


I would not re-use the cushions, especially if they are very old (like, original to the car).

[Jace H.]

[Joe L.]

Joe,

Yes they are original to the car. 3 star bowtie car with 34K miles.

Thanks,
Jace

Jace------


The upper cushion, GM #3788637 is still available from GM.

The lower cushion, GM #3795333, was discontinued about 2 years ago. Probably available in the aftermarket.