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Question re: bolts on half shafts


kstrause
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I'm about to replace the toasted rear end on my 72 non-tii. I recently purchased a replacement open diff from a 73 or 74 tii (can't remember which) that has the half shafts attached. I notice my flanges have nuts on the ends of the bolts, but the replacement doesn't. I assume the flanges must be threaded to accept the bolts. I was going to swap in the new diff keeping the old shafts but now I'm wondering if they're going to match. Does anyone have any advice?

Kurt Strause

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Some flanges have thru-holes, others have threaded holes.

The thru-hole flanges used slightly longer bolts with nuts.

The threaded flanges used shorter bolts (no nuts).

When I swapped my diff, it came with the threaded flanges, so I just re-used my original long bolts and added the nuts for an extra safety margin.

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Jim said it first, and Jim said it best.

One slight caution- make sure the back of the flange is flat

before you nut it. heh. If it's not machined flat, it'll bend the

tips of the longer bolts, making it hard to get the bolts out next time.

I have one set of flanges that are tapered slightly

on the backside- I have no idea what they came out of...

t

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Jim said it first, and Jim said it best.

One slight caution- make sure the back of the flange is flat

before you nut it. heh. If it's not machined flat, it'll bend the

tips of the longer bolts, making it hard to get the bolts out next time.

I have one set of flanges that are tapered slightly

on the backside- I have no idea what they came out of...

t

Thanks Toby - I think my flanges are flat.

pics1162010006.jpg

I wonder if the E21 flanges are tapered.

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