> 5. Try to repair it myself. How much is that?
Depends a lot on just how bad things are inside. I did my Stag diff myself
(which is nearly identical to the TR6), and it wasn't too bad. I was lucky,
the gears were OK, so it just needed bearings, thrust washers, seals, etc.
Seems to me it was around $150 for all the parts (with some creative
shopping).
I didn't use any "unobtanium" tools, just common shop tools that I already
had (dial indicator, hydraulic press, micrometer, etc) and a few that I made
for the purpose (mostly a big lever to help hold various things from
turning). It did wind up taking me several weeks to complete the project,
but that was mostly because I ordered the wrong bearing twice!
Sorry I never wrote it up, but you can get some idea from the photos at
http://s258.photobucket.com/albums/hh260/TR3driver/Stag%20diff/
If the gears are damaged though, I would suggest sourcing a used one and
then rebuilding it (which is actually what I did with the Stag). Just the
ring & pinion run over $400 new, and I'm not sure if the other gears are
even available new. Or, I believe the gears are common with other Triumph
diffs, so maybe you can find a used diff for another car and use the gears
from it. I've got several TR3A rear axles laying around, likely their gears
are fine.
-- Randall
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