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3A/4A interchangeability/Gearbox adaptors

To: "mods" <toyota-mods@cyberauto.com>
Subject: 3A/4A interchangeability/Gearbox adaptors
From: "phil.bradshaw" <phil.bradshaw@clear.net.nz>
Date: Sun, 10 Aug 97 08:02:55 PDT
Hi peoples.

Went to the local pick-a-part wrecking yard yesterday, determined to sort
out this thread on 3A gearbox interchangeability etc. I took a FWD 4AGE
(LHS starter) flex plate (that goes on the back of the block) and matched
this up to a 3A auto tranny bell housing.

It matched up to all the bolt holes, including starter. There was one hole
that did not line up, but I do not think it would be inportant. I would
certainly consider buying a 3A box as an option for a low horse 4AGE as a
cheap option (1/3 cost).

Also - the auto tranny bell housing is about 8mm shorter than a 2T
bellhousing - I recon it could be an excellent base for adding a plate and
joining a 2T T-50 to a 4AGE - if you cannot get a 4A bellhousing. Does this
mean that an Auto bell housing may be a good starting point to mate any
gearbox to an engine? Admittedly the clutch slave cylinder will have to be
mounted somehow, and the fork etc will have to be made to fit, but if you
are doing an obscure combo, it may be an option.


Phil Bradshaw
Auckland NZ

$100 wonder - 1981 TA 45 Celica - Lowered etc etc
1992 Leitch Supersprint 20 Valve Lotus 7 Replica - 64,000 miles...
Anglia 105GZE Supercharged 4AGZE Clubcar Project

phil.bradshaw@clear.net.nz
64-9-4455509 W/Fax
64-9-4437055 H

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