Please, correct me if the information I've gathered is wrong, but came across several forums stating the AW42 transmissions had to be replaced, no rebuild kits are offered, no shops will touch them, etc. Two members (can't remember their usernames) stated theirs were rebuilt. One stated his father did it, and another stated a local big name trans shop did his. No specifics were given. I've tried to find info on the AW42 and it is pretty much non-existent. Downloaded the Alto PDF Catalog, nothing for the AW42, but there were FWD AW50-42 kits, did some more searching and came across this , and ultimately to this list of all Volvo transmissions. Scrolled down and found this:
Transmission name: AW42
Type: 4 speed automatic
Manufacturer: Aisin-Warner (Japan)
Gear ratios: (1) 3.61:1 (2) 2.06:1 (3) 1.37:1 (4) 0.98:1
Notes: Transaxle for FWD, with overdrive and lockup torque converter. [GRIMSHAW96], [GRIMSHAW99] [VOLVO]
Cars that use this transmission: (1993 850 GLT) (1994 850 Base) (1994 850 Turbo) (1995 850 Base/GLT) (1995 850 GLE) (1995 850 T-5R) (1995 850 Turbo) (1996 850 Base/GLT) (1996 850 GLE) (1996 850 R) (1996 850 Turbo) (1997 850 Base) (1997 850 GLT) (1997 850 R (Can)) (1997 850 R (US)) (1997 850 T-5) (1998 C70 HPT) (1998 C70 LPT) (1998 S70/V70 Base) (1998 S70/V70 GL (USA)) (1998 S70/V70 GLT) (1998 S70/V70 T-5) (1998 V70 AWD) (1998 V70 R AWD) (1998 V70 XC AWD) (1999 C70 HPT) (1999 C70 LPT) (1999 S70/V70 AWD) (1999 S70/V70 Base) (1999 S70/V70 GLT) (1999 S70/V70 T-5) (1999 V70 R AWD) (1999 V70 XC AWD) (2000 C70 HPT) (2000 C70 LPT) (2000 S40/V40 1.9T) (2000 S70 AWD) (2000 S70 T-5) (2000 S70/V70 GLT) (2000 V70 R AWD) (2000 V70 XC AWD)
All those model years above are listed as AW50-42 in the rebuild kits (or anything else you look up pertaining to the car). So this tells me they are the same internally. There are some differences when looking up rebuild kits like pre-98 and post-98, but that's the only hick-up I see so far. If this info is correct, all that would be needed is a short discussion with the trans shop to accurately explain what their dealing with.
Comments, criticism, corrections, and discussion?
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