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Old 06-14-2024, 06:09 PM   #1
8man
Senior Member
 
Join Date: Sep 2017
Location: Bryan, Texas
Posts: 2,379
Changing rear axle lugs

I have a ZR2 rear axle, and I've started rebuilding it. The lugs on the rear are metric and don't match the ones on the front hubs I got from TCI - 7/16 x 20. After talking to TCI and having the axles out of the tubes for the rebuild anyway, I decided TCI was right and it was going to be easier to replace the rear metric lug bolts with 7/16 x 20. I measured the knurl and got some from Summit that have the measured knurl size of .557".

Now, I need to drill the hubs out, but I talked to an axle shop today and they said the real problem was centering the new hole.

I thought I could just use a drill press, and using the right size drill bit, it would follow the original hole and be centered. Am I missing something?

Thanks.
__________________
8man-aka Robert
1948 on a S10 Frame, small block with a carb
1954 Cab, 53 Front and Bed, 50 Doors, S10 Frame, Power TBD
Build thread: "]http://67-72chevytrucks.com/vboard/showthread.php?t=746899&highlight=wife%27s+48[/URL]
[/URL]http://67-72chevytrucks.com/vboard/showthread.php?t=840204
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