Charles W. Gal wrote:
> I am very interested in what you have done to your GT6 with the modified
> TR6 rear axel set up. I have read in a few places of owners replacing the
> rubber donuts with proper sliding half shafts but no technical details- is
> this what you have done with the TR6 shafts, if so, what is involved.
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Yes, but actually it's in a Spitfire with a GT6+ lower wishbone setup
grafted on to the Spitfire frame. It's really not that difficult, but
requires some irreversible machining to the inner axle shafts on the
differental and outer axle shafts in the hubs. Basically you machine off
the flange on the inner axle shafts ( a real bitch of an operation as these
are extremely hard) than you weld a new flange piece onto the modified inner
axle and re-machine it to match the dimensions of the TR6 flange yolks,
Suprisingly the flanges in question are only around 30 to 40 thousands in
diameter difference, and the bolt hole pattern is larger by the same amount.
You do a very similar operation to the outer axle shafts (cut off the
3-fingered rotoflex mounts, remachine the shaft, weld a new etc...) I would
have left the rotoflex setup as is, but it wouldn't handle the torque of the
V6. I have no problems with my stock 70 GT6+, but the Spit would tear up
the rotoflex joints in about two to three months and they're a REAL pain to
replace! I probably have some scanned images of the conversion, but I'm
sorry to say I don't have any drawings or dimensions of what was required.
I have my own lathe, drill press, welding equip, and am a mechanical
designer by profession so I didn't need drawings. (They're only required to
tell someone else what I want done :-)) any other dim's I needed were jotted
down on scraps of paper then tossed out when I finished the job! But it
seems that quite a few people would like to do the same thing ( I figured I
was the only one crazy enough to do something like this ) and in retrospect
I should made "official drawings" so that others might benifit, and possibly
if I ever have to dissassemble the unit for bearing repairs I might measure
and make some drawings just for that purpose. You could use any type of
sliding axle shaft/u-joint combo, I just wanted to keep it in the Triumph
family-
Barry Schwartz
Bschwartz@encad.com (work)
Bschwart@pacbell.net (home)
(San Diego)
70' Spitfire (under-going major surgery) , 72'-V6 Spitfire (daily driver)
70'GT6+
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