Bill Babcock wrote:
> Toyota gearboxes are as common as belly buttons, and most have
> minimal wear on them. The Japanese have interesting licensing and
> inspection laws that ensure the domestic cars turn over frequently.
> The drivetrains are frequently exported to the US. It would be
> unusual to rebuild one--you can get a replacement for next to
> nothing. I paid a hundred bucks for two from 2TG toyotas--of course
> that was four years ago. I pulled them apart to check the typical
> wear areas and they were indistinguishable from new.
>
>
What Bill says is probably true of the transmissions today. However,
this is not precisely true of the Celica/Supra/4WD 5-speeds of
yesteryear, so be careful from whence the transmission comes. From the
late `70s until around the mid-`80s, the 5-speeds had a tendency to fail
mainshaft bearings. Toyota was aware of the problem and decided it was
cheaper to just informally extend the warranty on the transmission than
to do a mold and machining change to modify the case for a wider roller
bearing at the front, and continued to use a ball bearing, which wasn't
up to the loads. Oh, and if someone tells you their transmission came
out of the diesel truck and is therefore stronger, that's not
true--those transmissions were the same as the above.
All that probably does not apply for anything made beyond the mid- to
late-`80s, but there are still lots of the older transmissions in
junkyards, so it's worth remembering.
To a lesser degree, the same was true of the Corolla 5-speeds of the
time, but they didn't suffer the same rate of failure because they just
couldn't be pushed as hard. Even so, in the sixteen months I was at a
Toyota shop in the early `80s, I did do a bearing replacement on a
Corolla 5-speed with about 30,000 miles on it.
All that said, though, they're a much better starting point than the GT6
gearbox....
Cheers.
--
Michael Porter
Roswell, NM
Never let anyone drive you crazy when you know it's within walking distance....
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