AMC Th400 Rebuild - Pirate4x4.Com : 4x4 and Off-Road Forum

CKHANNA71 · 01-05-2012, 05:26 AM

Anyone tackle the task of tearing apart and rebuilding their own th400? I have to change the tail shafts between two th400 transmissions and I really want to give it a try. I have looked all over and maybe I am just missing it but I have yet to find a detailed sequence of steps to follow. . Any suggestions?

rustywagoneersdotcom · 01-05-2012, 06:06 AM

Quote:

Originally Posted by CKHANNA71

Anyone tackle the task of tearing apart and rebuilding their own th400? I have to change the tail shafts between two th400 transmissions and I really want to give it a try. I have looked all over and maybe I am just missing it but I have yet to find a detailed sequence of steps to follow. I just bought the Haynes Techbook and it doesnt seem that difficult to do. Any suggestions?

Crawl magazine had a tech article for exactly what you are doing a month or three back. Mostly it will be a matter of using a few special tools, and cleanliness.

oldjeep · 01-05-2012, 06:13 AM

I rebuild a TH400 a few years ago. Only special thing needed was a very large snapring pliers. Other than that standard tools and a shop press was all that was needed.

You want to buy the ATSG manual for a TH400 - about $25 just about anywhere

CKHANNA71 · 01-05-2012, 07:52 AM

Well I have a good set of snap ring pliers, and I have access to a shop press. I am kind of excited to give this a shot.

CKHANNA71 · 01-06-2012, 07:13 AM

Bought the Haynes Techbook

CKHANNA71 · 01-06-2012, 07:14 AM

Built a stand out of an old bed frame to stand the transmissions vertical

CKHANNA71 · 01-07-2012, 08:23 PM

Got one transmission completely taken apart and the other one taken apart and rebuilt.

CKHANNA71 · 01-07-2012, 08:34 PM

Plan is to rebuild the other trans tomorrow

01-05-2012, 05:26 AM	#1 (permalink)
CKHANNA71 Registered User Join Date: Nov 2010 Member # 173000 Posts: 6	Th400 Rebuild Anyone tackle the task of tearing apart and rebuilding their own th400? I have to change the tail shafts between two th400 transmissions and I really want to give it a try. I have looked all over and maybe I am just missing it but I have yet to find a detailed sequence of steps to follow. . Any suggestions? Last edited by CKHANNA71; 01-06-2012 at 07:24 AM.

01-05-2012, 06:13 AM	#3 (permalink)
oldjeep Pirate4x4 Addict! Join Date: Mar 2001 Member # 3511 Location: MN Posts: 5,387	I rebuild a TH400 a few years ago. Only special thing needed was a very large snapring pliers. Other than that standard tools and a shop press was all that was needed. You want to buy the ATSG manual for a TH400 - about $25 just about anywhere __________________ Chuck P The clowns'? Oh, yeah, the clowns. We fight them too — entire armies, spilling out of Volkswagons. We do our best to fight them off, but they keep sending 'em in! www.oldjeep.com Last edited by oldjeep; 01-05-2012 at 06:14 AM.

01-07-2012, 08:23 PM	#7 (permalink)
CKHANNA71 Registered User Join Date: Nov 2010 Member # 173000 Posts: 6	Got one transmission completely taken apart and the other one taken apart and rebuilt. Last edited by CKHANNA71; 01-07-2012 at 08:40 PM.

01-07-2012, 08:34 PM	#8 (permalink)
CKHANNA71 Registered User Join Date: Nov 2010 Member # 173000 Posts: 6	Plan is to rebuild the other trans tomorrow Last edited by CKHANNA71; 01-07-2012 at 08:39 PM.

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01-05-2012, 07:52 AM	#4 (permalink)
CKHANNA71 Registered User Join Date: Nov 2010 Member # 173000 Posts: 6	Well I have a good set of snap ring pliers, and I have access to a shop press. I am kind of excited to give this a shot.

01-06-2012, 07:13 AM	#5 (permalink)
CKHANNA71 Registered User Join Date: Nov 2010 Member # 173000 Posts: 6	Bought the Haynes Techbook

01-06-2012, 07:14 AM	#6 (permalink)
CKHANNA71 Registered User Join Date: Nov 2010 Member # 173000 Posts: 6	Built a stand out of an old bed frame to stand the transmissions vertical