Rear differential repair- parts recommendations please

[billschroeder5842]

Hey all,

I have a slow leak in my differential that is starting to bug me. It is only a drop or two a month, but it is still there. I crawl under the car weekly and wipe to stay ahead of it. It is located around the support strut rod.

I'm going to take a stab at trying to do the repair myself. While apart I want to make the proper preventative maintenance/upgrades as the car has about 90k on it.

So...
What is the better brand of U joints to install?
What is a better set of rear end bushing kits to make replacements?
What is the correct differential fluid to add?

Thanks!

[Jagdpanzer]

Denny's has everything for the differential.
https://www.dennysdriveshaft.com/c29_corvette.html
Get the heavy duty non greasable
Spicer u-joints rebuild kit.
https://www.dennysdriveshaft.com/p422_dennys_5_1350x_pkg2_rebuild_kit_set_of_4_dana _spicer_5_1350x.html
Dino's has the SuperPro suspension bushings
https://www.corvettesalvage.com/?s=SuperPro&post_type=product&dgwt_wcas=1


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[billschroeder5842]

Thanks Phil- this is a great lead.

Question... does the drive shaft take the same size U Joints as the half shafts? I figure I might as well replace those at the same time.

[Jagdpanzer]

They are smaller
This kit includes also includes the driveshaft u-joints , fasteners, and straps:
https://www.dennysdriveshaft.com/p423_dennys_5_1350x_pkg3_rebuild_kit_4_dana_spicer _5_1350x_4_3_70.html


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[billschroeder5842]

Thanks Phil- this is perfect; the entire kit for drive shaft and half shafts.

I just ordered it-- Free Shipping too!