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TH400 on 1972
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Picture of Spud
posted
My transmission is kaput. I have a mechanic friend with a shop/lift who is helping me out with this project because it is beyond the scope of what I'm capable of and comfortable doing. In the past I had a slipping problem that was resolved by changing the fluid, filter, and repairing a leaking line to the cooler/radiator. I have strong reverse, but the forward gears are not doing much. This time the filter-fluid-flush didn't fix the problem and my mechanic says it's time for a new transmission.

We've been unable to locate any identifying information on the existing transmission that has been useful to a GM dealer in order to order a transmission that has some sort of warranty. Mechanic friend says I should buy a TH400 from TCI. I see that some folks have talked about swapping to heavy duty transmissions like the 4l80e, but I don't think the 4th gear/OD is worth the added cost. Any suggestions other than the TCI TH400? Very fast and reputable rebuild shops?
 
Posts: 25 | Location: New York | Member Since: 03-10-2017Reply With QuoteReport This Post
Supporting Member of Barthmobile.com 9/17
Picture of Duane88
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Got a guy here in Iowa that will rebuild the TH400 for about $800 does not do you much good, he rebuilt one on my old winne and it was fine That was with he pull and replace.


25 Ft Glassnose, 2792, 1982
454 Engine
Plain Jane Interior
Original Paint
Picture by Kevin
 
Posts: 756 | Location: Clinton Iowa | Member Since: 04-02-2017Reply With QuoteReport This Post
Supporting Member of Barthmobile.com 2/16
Captain Doom
Picture of Rusty
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I used Suncoast Converters and Webb Transmissions in FT. Walton Beach to rebuild/uprate my 4L80E, and they did an exceptional job.

Sometimes it's worth crating something up and shipping it to an outside shop.

But there surely must be reputable shops in NY.


Rusty


MilSpec AMG 6.5L TD 230HP; built-to-order by Peninsular Engines:  Hi-pop injectors, gear-driven camshaft, non-waste-gated, high-output turbo, 18:1 pistons.  Fuel economy increased by 15-20%, power, WOW!"StaRV II"

'94 28' Breakaway: MilSpec AMG 6.5L TD 230HP

Nelson and Chester, not-spoiled Golden Retrievers

Sometimes I think we're alone in the universe, and sometimes I think we're not.
In either case the idea is quite staggering.
- Arthur C. Clarke

It was a woman who drove me to drink, and I've been searching thirty years to find her and thank her - W. C. Fields
 
Posts: 8401 | Location: Brooker, FL, USA | Member Since: 09-08-2005Reply With QuoteReport This Post
Supporting Member of Barthmobile.com 3/11
Picture of Tom  and Julie
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Monster transmissions in Florida. Free shipping, upgraded shift kits, stronger clutches. Check on web. Warranty.


1993 32' Regency Wide Body, 4 speed Allison Trans, Front Entry door, Diamond Plate aluminum roof &
1981 Euro 22' w Chevy 350 engine and TH 400 tranny
 
Posts: 1451 | Location: Houston Texas | Member Since: 12-19-2006Reply With QuoteReport This Post
Supporting Member of Barthmobile.com 12/12
Picture of Lee
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I went with a Jasper reman swap.....never had a minutes problem with it and thought I received good value vs cost.
On the flip side,there’s also horror stories out there.
 
Posts: 1408 | Location: Frederick, Maryland | Member Since: 09-12-2003Reply With QuoteReport This Post
Supporting Member of Barthmobile.com 6/12
Formally known as "Humbojb"
Picture of Jim and Tere
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what part of New York are you from?


Jim and TereJim and Tere

1985 Regal
29' Chevy 454 P32
8411 3172 29FP3B
Gear Vendor 6 Speed Tranny
 
Posts: 3353 | Location: madisonville tn usa | Member Since: 02-19-2005Reply With QuoteReport This Post
Supporting Member of Barthmobile.com 1/18
Picture of Steve VW
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I put a reman TCI TH400 and torque converter in my 86. Very happy with both. Less slip in torque converter about 50 rpm less at same cruise speed. Good solid shift points too


9708-M0037-37MM-01
"98" Monarch 37
Spartan MM, 6 spd Allison
Cummins 8.3 300 hp
 
Posts: 3720 | Location: Kalkaska, MI | Member Since: 02-04-2011Reply With QuoteReport This Post
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