Tranny swap. 86 2WD Concord 3 spd auto into an 83 4WD SX/4.

[Will]

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

[BenM]

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?

[mudkicker715]

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.

[ammachine390]

Concords only ran 78-83, and spirits only ran 79-83. So if you are sure it's and 86, its from a 4x4

[Will]

Sorry guys. Total brain .  The replacement engine and tranny is coming form an 82 2WD.  So all I should have to do is swap the output shaft?

[mudkicker715]

Basically. If you can do that howwver you can rebuild a trans

[IowaEagle]

You will need the transfer case adapter too.  They are different between the auto and manual versions. 

[mudkicker715]

Iwas assuming he had that