Amc 20 swap?

G.P_XJ

NAXJA Forum User

Location

Centennial, CO

• Mar 1, 2010

• #1

I've been thinking about possiable axle swap's for the XJ. My CJ7 had an amc 20 from the factory, and from what i've found online it is just as strong a dana 44.

Has anyone swaped in a widetrack amc 20 into theis XJ??


Thanks
Garrett

 

tbburg

NAXJA Forum User

Location

Scottsdale AZ

• Mar 1, 2010

• #2

Bad idea:
A wide-track AMC-20 is several inches narrower then the XJ axle.
The Jeep -20 has the 2-piece axles (which suck)
While the -20 center is actaully almost as strong as a D-60, the Jeep axle tubes are puny. Small dia. and thin wall.
Jeep axles have the 5 x 5.5" bolt pattern.
If you really want to do a -20 swap, consider looking for a passenger car axle. They have larger(but still thin wall)axle tubes, and most of the later ones have one-piece axles.

 

BRIANHO13

<- Yum Chocolate

Location

Spring, TX

• Mar 1, 2010

• #3

Wagoneer amc 20's are the same width as an xj axle and come stock with one piece shafts, truss it and run it.

Like said above cj amc 20's are pretty much junk with the 2 piece shafts.

 

A

alaskan

NAXJA Forum User

Location

Austin, TX

• Mar 1, 2010

• #4

tbburg said:

A wide-track AMC-20 is several inches narrower then the XJ axle.

Click to expand...

Incorrect.

tbburg said:

The Jeep -20 has the 2-piece axles (which suck)

Click to expand...

Only some of them do.

tbburg said:

Jeep axles have the 5 x 5.5" bolt pattern.

Click to expand...

Again, only some of them.

 

Tim_MN

Freakish Hand Strength

NAXJA Member

Location

Minneapolis, MN

• Mar 1, 2010

• #5

A 1997+ 29 spline Chry 8.25 is nearly as strong as a D44 and will bolt into any XJ with no mods. I find them for $100-150 all the time. That makes it hardly worth the time or the trouble to install an AMC 20. No bolt pattern issues either.

 

8

89XJPioneer

NAXJA Forum User

Location

Eastern LI

• Mar 1, 2010

• #6

I've personally watched someone spin the tubes on a 20 with 33s on a cj climbin a small hill and wheel hopping

 

kastein

NAXJA Member

NAXJA Member

Location

Rainy side of Washington

• Mar 1, 2010

• #7

You're going to dislike it if you want to regear it, too. Like Tim said, a 29 spline 8.25 is easy, cheap, bolt-in. You can get them for 100 bucks complete around here at a pick-n-pull, or even cheaper on your local chapter classifieds probably.

 

Phil

NAXJA Member

NAXJA Member

Location

West Sacramento, CA

• Mar 1, 2010

• #8

JnJ ran a Waggy 44 and matching AMC 20 years ago, I believe it was just fine. If the bolt pattern works for you, have at it.