Hello all. Does anyone know if multiple transmissions are compatible with a 1989 chevy G20, 8 cyl, overdrive automatic tranny? Van is broken down in
Rosarito. We are currently near La Paz though. Looking at possibly picking up a transmission here and bringing it back up.
We were hoping the mechanic there could fix it, but he can't and he's having a hard time finding one around there. When I call the junk yards in La
Paz all they want to know is the year and the # of Cylinders.
Any help or suggestions would be greatly appreciated.
Robcaptkw - 2-6-2011 at 11:45 AM
sounds like that trans would be easy to find in the yonke's on the road to la vetanna from la paz out past the coke plant>>BajaBusDriver - 2-6-2011 at 11:52 AM
I think as soon as we know what transmission(s) are compatible it shouldn't be too hard to find one. We're not sure exactly which transmission is in
the van now and whether or not it even matters.Skipjack Joe - 2-6-2011 at 11:54 AM
Call Montana auto wreckers Chemetla talk to Will,he speaks exellent english and has all the answers.
612 124 6527
612 3483919Diver - 2-6-2011 at 12:00 PM
They will all bolt up fine.
Check the trans length to avoid a new longer or cut shorter drive shaft.BajaBusDriver - 2-6-2011 at 12:02 PM
Thanks Joe. I'm not sure which engine is in the van. All I know is it's an 8 cyl. I've been looking all over the internet, but haven't found a
definitive answer yet. I've heard both answers.captkw - 2-6-2011 at 12:02 PM
1989 that would be a 350 more than likly. what is the pan shaped like? how many pan screws? over all lenth?BajaBusDriver - 2-6-2011 at 12:11 PM
Thanks everyone!! I will call Will tomorrow (Monday) in Chemetla.
Unfortunately, I am not sure what the bell housing is shaped like. Nor how long the overall length is. I have not had very good luck contacting the
mechanic up there.
Thanks again.
Robcaptkw - 2-6-2011 at 12:24 PM
NOT the bell housing!!! the trans oil pan!! that will, determine the type!!mulegejim - 2-6-2011 at 01:26 PM
Might be able to Google the VIN # and get the information you need. JimSoCal-Bob - 2-6-2011 at 04:21 PM
"It [the T400] can be identified by an oil pan in the shape of what some would call similar to that of the state of Texas.
"The 700R4 can be identified by the oilpan having a rectangular shape being longer front-to-rear than side-to-side and held to the transmission by 16
bolts: three bolts front and rear; five bolts left and right sides."
(from wiki: http://en.wikipedia.org/wiki/Turbo-Hydramatic)
beyond what GM offered, my limited automotive knowledge can't help with which other transmissions would be compatible. but those two were used
extensively in GM full size trucks from 1981 up to 1987 (and vans and SUVs until 1989). so finding one of those would be your best bet.
[Edited on 2-6-2011 by SoCal-Bob]comitan - 2-6-2011 at 04:36 PM
Could also be 4L60ESoCal-Bob - 2-6-2011 at 06:22 PM
Quote:
Originally posted by comitan
Could also be 4L60E
If they offered it behind a V8, I don't believe they used the 4L60e in full size vans until after 1990 or 1993.
[Edited on 2-7-2011 by SoCal-Bob]comitan - 2-6-2011 at 07:10 PM
I was thinking 98.Marc - 2-7-2011 at 08:54 PM
I drove a '90 for years. It just would not give up. Held a ton of stuff and had great power.
