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-   -   Project Coppertop Axle Swap (https://www.cincyoffroad.com/forumOLDVB3/showthread.php?t=6039)

buckeyezuk 05-29-2011 10:17 PM

xj
 
The build turned out good man.. I am starting a xj build now. rear bump stops will help your uptravel problem. if you put a spring pack in that is stiff enough to not uptravel, it probly wont flex good either. a softer spring pack with bump stops is probably your best bet. a traction bar on the rear will help your springs live longer also. axle wrap will kill your leafs. you may have a traction bar but i didnt catch it in your build.

Coppertop 05-30-2011 11:01 AM

Quote:

Originally Posted by buckeyezuk (Post 51273)
The build turned out good man.. I am starting a xj build now. rear bump stops will help your uptravel problem.

Thanks..Good Luck on your build.The rear springs seem to soft,after adding the rear shackle relocation brackets they are sitting almost flat (no arch).Rough Country has always been good to deal with so,I'll give them a call first.All your suggestions are good and I'm considering them.

If you have any questions on your XJ build.I'm happy to help.

Nick

xj joey 05-30-2011 01:12 PM

Looking good Nick!

itbrokeagain 05-30-2011 02:57 PM

I solved the flat spring issue on my yj with an extra main leaf under the original. A traction bar is a must.

Coppertop 05-31-2011 12:24 PM

I gave Rough Country a call ,they are sending me another set of rear springs...If that don't solve it ,then I'll start adding leaves.I agree with the traction bar..The u-bolt eliminators was suppose to help reduce axle wrap.I'm not seeing it so far.

Nick

Coppertop 06-04-2011 01:20 PM

Got the rear springs out. Man,did they flatten' out.

http://i529.photobucket.com/albums/d...emysdog186.jpg

http://i529.photobucket.com/albums/d...emysdog185.jpg

I'm gonna take the leaf under the top one out of the old ones and add it to the new ones.Hopin' it will add a little lift and stiffen them up.

Nick

gothodgie 06-04-2011 02:06 PM

did you get anything figured out for a sway bar yet?

It looks good in the pics from big rock... It doesn't look as wide ai thought it would..:thumbup:

Coppertop 06-05-2011 10:55 AM

Nope,I just havn't got a chance to address the sway bar issue.My plan,to go to You Pull and Save check all the full size trucks and suvs.It's pretty wide.:eek: I rubbed the tires a few times in some tight spots.

Got the new rear springs in..It looks alot better,even had to change the shackle postion.

Nick

itbrokeagain 06-10-2011 02:21 PM

When you heading out again? I would like to tag along in my Xj. My Yj is STILL not running well. Replaced every sensor, distributor, and swapped the fuel pump (pressure was a little low), and Swapped in another ECM. Now I am starting into the top end of the engine. Anyway mind if I tag along?

Coppertop 06-10-2011 04:38 PM

Heading down to Big Rock next weekend.Camping friday night and wheeling saturday.I started a thread.

Hope to see ya .
Nick

Coppertop 07-04-2011 01:52 PM

The Harlan Trip
 
Went to Harlan this weekend for the SEC Naxja Cherokee Crawl.Man ,I put the heep to the test.Did'nt take long to break it....:D
http://i529.photobucket.com/albums/d...nJuly11015.jpg

Heck,even got it on video.
http://youtu.be/-78N3NmGRaA

The second day.The front truss cracked at their welds.Glad I had the home made welder on board.

http://i529.photobucket.com/albums/d...nJuly11055.jpg

http://i529.photobucket.com/albums/d...nJuly11083.jpg

Another CORE member made it.Always a good time wheeling with beer googles 009
http://i529.photobucket.com/albums/d...nJuly11039.jpg

Overall ,the rig performed well.I'm going to buy stronger alloy u-joints.:rolleyes:

Rest of my pics here.
http://s529.photobucket.com/albums/d...rokee%20Crawl/

Back to the garage
Nick

gothodgie 07-04-2011 02:17 PM

looks like you had a great time... How was the weather, hot as he** ?

:beers:

WrenchMonkey 07-04-2011 03:53 PM

Quote:

Originally Posted by Coppertop (Post 52846)
Did'nt take long to break it...

Back to the garage
Nick

Oh, that sucks!
They're still 297 joints, right? Same as you were busting on your 30?
Shame you weren't able to eliminate that proven weak link...

So can you change a 44 shaft as fast as you could a 30? :D

Robert

Coppertop 07-04-2011 08:51 PM

Quote:

Originally Posted by gothodgie (Post 52847)
looks like you had a great time... How was the weather, hot as he** ?

:beers:

I had a blast.Yes ,it was nice n dry and hot.

Quote:

Originally Posted by WrenchMonkey (Post 52851)
Oh, that sucks!
They're still 297 joints, right? Same as you were busting on your 30?
Shame you weren't able to eliminate that proven weak link...

So can you change a 44 shaft as fast as you could a 30? :D

Robert

Not even close to the time ,I could change out a 30 shaft and never want to get that good with this axle...:D I'm going top of line, Bobby Longfield or Yukon super joints.Ordering them tomorrow,I'm hoping to get warranty replacement on the USA axle shafts,after all it was a USA alloy u-joint that broke.

Nick

gothodgie 07-05-2011 12:26 AM

bobby longs stuff is the only way to go in my opinion... he makes front axles for the yotas and i know a couple of guys with fj40's on 40" tires with some horse power and deep gears, and they beat on them with no issues... Can't beat a lifetime warranty either... :thumbup:

:beers:

WrenchMonkey 07-05-2011 11:03 AM

Oh yeah, I almost forgot: I guess the new leaves worked better?

Is this the first time you've had em out on the trail?

Robert

Coppertop 07-05-2011 11:20 AM

The only problem with the rear springs,the bushings are noisy.I won a Rusty's Offroad 250.00 gift card at the raffle.I'm thinking about using it towards a set of rear springs.

I talked to several people and they all said good things about the Bobby Longs stuff.So, I'm ordering those joints.

I'll get this thing built right...One of these days.:evilgrin:
Nick

frankensteinxj 09-09-2011 10:18 PM

Hey Nick im about to swap some one tons in my xj.

i came back to check out some pictures of your setup but a lot of them arent showing up.

i will be using the rc long arms as well which is why Im lookin at your build specifically.

How did you figure out where to mount your upper control arm mount?

How long did you setup your upper and lower arms.

definately one of my favorite xjs man.
Good work.
:beers:

Coppertop 09-12-2011 11:31 AM

Thanks man...Good luck on your swap.
Heres a link to all the pics.
http://s529.photobucket.com/albums/d...20Swap%202011/

I went with the TnT front truss.All the brackets(except the lower control arm , shocks and sway bar brackets)are installed and welded in place by them.The truss comes with instructions to install it and to mount the lower control arm brackets.
http://02ea137.netsolstores.com/front.aspx

I setup the RC control arms per their instructions.The uppers measure 15 1/4 inches from eye to eye.The lowers measure 29 3/4 from eye to eye.

Nick

kentuckytwostep 09-12-2011 04:09 PM

I use to have a ford 44 under my old XJ, got to where I could change out a U-joint in about 30 minutes... did it 3 times at Dixie Run last year. Also had RC rear lift springs in the rear and one of them wrapped my first trip out. anti-wrap bar is a must.

Coppertop 09-14-2011 09:24 AM

That's pretty quick....I could switch out one in my old dana 30 in 20 minutes.After breaking a front USA Alloy joint at Harlan,I bought a set of Bobby Longfields Super joints.So far they are holding up..Beat it in Attica(Badlands) a few weeks ago with no issues in the drivetrain.I justed replaced my rear RC springs with a new set from Rusty's last week ,all the bushings were wiped out.

I hope to post a build sheet soon.:D

Nick


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