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Diff mount front bushing

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Old Oct 28, 2007 | 06:29 PM
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Default Diff mount front bushing

I am about to put a new front bushing in the rear end of my 74. Is the mounting plate under any pressure? Do I need to prop the diff head up while I do this or do I need to keep the diff head pinned down using a prop of some description against the chassis?
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Old Oct 28, 2007 | 06:51 PM
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This is a pretty easy job. No pressure on the diff as it is bolted to the upper cross member. Helps to have a large screw driver or small pry bar to slip in the new bushing. The old one will come out easy as it's probably compacted from years of use (which is why you are replacing it in the first place).
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Old Oct 28, 2007 | 06:56 PM
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Thanks for that Hammerhead! I didn't want to pop the bolts out of the mount and then have the diff twist in to my head or the floor of the car!
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Old Oct 28, 2007 | 07:35 PM
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I replaced mine with an aluminum bushing from Guldstrand (along with the bushings on the crossmenber). These act in the same manner as the SSM rear end locator kit to keep everything in place (but less weight and you can have an exhaust crossover pipe in front of the pumpkin). A big azz screwdriver was all that was needed to pry it away and slip in the bushing.

Of couse, then on hard launches the U-joint rubbed the tunnel (loud and hard to find what was making the noise). Finally I found a little line in the 'glass and on the u-joint and figured out the problem.

Pop out the big azz screwdriver again and two fender washers under the aluminum bushing took care of that problem.
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Old Oct 28, 2007 | 08:21 PM
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I'm going with a poly bush in my car, it only does light duty street use. I have seen the kits you have and they look like they would do a great job of locking in the rear end and they look pretty good to. Thanks for your advice.

Cheers Glenn
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Old Oct 28, 2007 | 09:05 PM
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I replaced mine as part of pulling the diff and drive line. The front seemed to rotrate upwards a little. Nothing that couldn't be adjusted with a little downward pressure.
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