AMC Eagle Den Forum

The Shop => Transmission Shop => Topic started by: Will on April 24, 2011, 09:51:27 AM

Title: Tranny swap. 86 2WD Concord 3 spd auto into an 83 4WD SX/4.
Post by: Will on April 24, 2011, 09:51:27 AM
A couple of months back the transmission in my 83 SX/4 started slipping.  I have had my hands on an 86 Concord for some time now. The 86 engine and 3 spd auto are in great running condition with fewer miles then the 83.  I was planning on just swapping both the engine and the tranny out.  Both eagles have a three speed automatic and a 4.2 L.  The question is this - What will swapping the 86 2WD engine and tranny into the 83 4WD require?

Best,

Will
Title: Re: Tranny swap. 86 2WD Concord 3 spd auto into an 83 4WD SX/4.
Post by: BenM on April 24, 2011, 12:16:35 PM
You'll either have to give up 4wd or have a transmission shop put a different output shaft in the transmission.

A 1986 engine, however, ought to swap directly. Are you sure on the Concord year, I'm pretty sure they were 78-83?
Title: Re: Tranny swap. 86 2WD Concord 3 spd auto into an 83 4WD SX/4.
Post by: mudkicker715 on April 24, 2011, 12:41:18 PM
They should be to take ouput shafts and nosecones and swap them. I would tell you how, but since your asking I will assume limited experience.
Title: Re: Tranny swap. 86 2WD Concord 3 spd auto into an 83 4WD SX/4.
Post by: ammachine390 on April 24, 2011, 04:11:24 PM
Concords only ran 78-83, and spirits only ran 79-83. So if you are sure it's and 86, its from a 4x4
Title: Re: Tranny swap. 86 2WD Concord 3 spd auto into an 83 4WD SX/4.
Post by: Will on April 24, 2011, 09:23:42 PM
Sorry guys. Total brain :censored:.  The replacement engine and tranny is coming form an 82 2WD.  So all I should have to do is swap the output shaft?
Title: Re: Tranny swap. 86 2WD Concord 3 spd auto into an 83 4WD SX/4.
Post by: mudkicker715 on April 24, 2011, 09:36:55 PM
Basically. If you can do that howwver you can rebuild a trans
Title: Re: Tranny swap. 86 2WD Concord 3 spd auto into an 83 4WD SX/4.
Post by: IowaEagle on April 24, 2011, 09:59:04 PM
You will need the transfer case adapter too.  They are different between the auto and manual versions. 
Title: Re: Tranny swap. 86 2WD Concord 3 spd auto into an 83 4WD SX/4.
Post by: mudkicker715 on April 24, 2011, 10:04:10 PM
Iwas assuming he had that