Fried Tranny/Converter
Thread Starter
Safety Car
Joined: Aug 2002
Posts: 4,812
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From: New Albany IN
St. Jude Donor '03-'04-'06-'08-'09
Fried Tranny/Converter
On another thread I asked about what may be the problem with my tranny...I was advised that it could be a broken converter/bolts sheared off and/or a cooked tranny. Question #1: I am kinda new to the corvette specs......Is that tranny (88 coupe auto) a 700r4? or what else could it be?
Question #2: I am fairly mechanically literate but is pulling that tranny out something a home mechanic could do or should I have a pro do it?
Question #3: If the tranny is cooked can it be rebuilt or do I need a new one?
and lastly: I would rather have a 4 or 6 speed....too much $$$ or work?
Thanks guys......I am really glad I found this place...I have really learned a lot from other's threads!!!
Chris :confused: :confused:
Question #2: I am fairly mechanically literate but is pulling that tranny out something a home mechanic could do or should I have a pro do it?
Question #3: If the tranny is cooked can it be rebuilt or do I need a new one?
and lastly: I would rather have a 4 or 6 speed....too much $$$ or work?
Thanks guys......I am really glad I found this place...I have really learned a lot from other's threads!!!
Chris :confused: :confused:
Team Owner
Joined: Apr 2001
Posts: 22,267
Likes: 3
From: Dallas TX
Re: Fried Tranny/Converter (Bruthish)
700R4 :yesnod: 4L60E didn't start until '94
if you're mechanically inclined, you can save a LOT of $ by dropping it yourself and taking it somwhere
yes, it can be rebuilt.
[Modified by Glock'94, 1:51 PM 8/28/2002]
if you're mechanically inclined, you can save a LOT of $ by dropping it yourself and taking it somwhere
yes, it can be rebuilt.
[Modified by Glock'94, 1:51 PM 8/28/2002]
Team Owner
Joined: Dec 2000
Posts: 90,675
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From: SE NY
Cruise-In II Veteran
Re: Fried Tranny/Converter (Bruthish)
I just had my 700R/4 dropped rebuilt and installed for $950.
You need to drop the exhaust, drive shaft and rear cross-member to pull the tranny.
If the tranny is "crooked" it may be a bent case (??) or loose rear mount (and/or motor mount).
For an '88 you may want to upgrade your stock 1,500rpm TC to a 2,000rpm unit for a little more torque on launch.
BTW, you can cut notches in your A4 shifter to give more shift and position feel (details on my site).
If you can find a good used 4+3 it should be a fairly easy swap, though it may take a different drive shaft and wiring harness along with a chip change.
You need to drop the exhaust, drive shaft and rear cross-member to pull the tranny.
If the tranny is "crooked" it may be a bent case (??) or loose rear mount (and/or motor mount).
For an '88 you may want to upgrade your stock 1,500rpm TC to a 2,000rpm unit for a little more torque on launch.
BTW, you can cut notches in your A4 shifter to give more shift and position feel (details on my site).
If you can find a good used 4+3 it should be a fairly easy swap, though it may take a different drive shaft and wiring harness along with a chip change.
Thread Starter
Safety Car
Joined: Aug 2002
Posts: 4,812
Likes: 1
From: New Albany IN
St. Jude Donor '03-'04-'06-'08-'09
Re: Fried Tranny/Converter (Bruthish)
Thanks Guys...
Another question...by reading some of the other guy's threads...some complain that the 700r4 was not the greatest tranny. I also heard that a TH400 would bolt up.....if I stayed automatic......would the 700r4 still be good to rebuild for upto 400hp or so?
Chris
Another question...by reading some of the other guy's threads...some complain that the 700r4 was not the greatest tranny. I also heard that a TH400 would bolt up.....if I stayed automatic......would the 700r4 still be good to rebuild for upto 400hp or so?
Chris
Racer
Joined: Jan 2002
Posts: 473
Likes: 8
From: Shreveport LA
Re: Fried Tranny/Converter (Bruthish)
Depends on how well you have it built. I'm about to have a MegaRaptor 700R4 put in my car just to see if a 700R4 can be built that actually holds up to abuse.
You can check out the specs at http://www.transmissioncenter.net/700MegaRaptor.htm
This is the best 700R4 I've found. If I can break this one then I'll never touch another 700R4 again! I feel pretty confident about the MegaRaptor though. If it breaks then I'll be converting over to a 4L80E. Noone's done the 4L80E in a C4 yet so it will be an interesting journey should I end up going that direction in the future.
You can check out the specs at http://www.transmissioncenter.net/700MegaRaptor.htm
This is the best 700R4 I've found. If I can break this one then I'll never touch another 700R4 again! I feel pretty confident about the MegaRaptor though. If it breaks then I'll be converting over to a 4L80E. Noone's done the 4L80E in a C4 yet so it will be an interesting journey should I end up going that direction in the future.
