Can you get enough lift SUA to clear a dana 60 and articulate?

Doing an axle swap now (dana 44 and dana 60) on my everyday driver/rockcrawlin' YJ.

Want to know what the biggest tire size you guys can stuff into the wheel wells running SUA with like 4.5" RE springs or the 6" Alcans.

I'm worried about the instability of running the Jeep with SOA lift, but need the ground clearance for the 60.

Any pictures? Recommendations?

(I already cut out the wheel well area and I'm running the TJ flares, 2" BL, and 3.5" BD leafs.)

35s with RE 4.5XD, +1 inch Daystar body mounts, and +1.25-inch Conn Ferr shackles (which only add about another 1/2 inch because the shackles that come with the RE kit are longer than stock to begin with). Nothing trimmed.

No rubbing whatsoever with Waggy D44s F&R, but you'll lose a little with D60s plus it'll probably articulate a hair more due to the weight of the axle. so you might rub a bit when you're really getting it awwwn.

Here's a lame parking lot shot of that setup...

if you are going to swap axles just do the soa, it rides better than stock and is just as stable as long as you have the sway bar hooked up. if you do go sua, i bet somewhere down the road you will say " i shoulda did soa"

Originally posted by yjtj
if you are going to swap axles just do the soa, it rides better than stock and is just as stable as long as you have the sway bar hooked up. if you do go sua, i bet somewhere down the road you will say " i shoulda did soa"

Took the words out of my mouth. Just SOA that thing and be done.

What width 44/60 do you have. Even at stock width SOA is still stable. If you are that worried about it get wheels with less backspacing.

I never had stability problems on my DD's w/SOA .

Wow Jake, and I thought I was the only one still running SUA on the jeep tech board :) Looks good.. As far as running spring under with a D44/60 combo... why. whats the point? Just go SOA. Im going SOA as soon as I can get all the parts together for the front axle to be SOA'ed, and Im having the perches welded on SUA and SOA on my 8.8 thats going in at the end of the month, so that the rear SOA will basically be bolt on.
Scott

4" FSJ BDS front springs should give 5.5" on a YJ since stock FSJ front springs give 1.5" on a YJ. BDS also has 6" FSJ springs that would give 7.5".

Just to let you know if anyone wants to try this before me. Save lots of money over those Alcans. Only thing is we don't know how flexy they would be on a SWB jeep yet.

I'm cutting the dana 44 down to about 62.90" and the dana 60 to 62.00". Was planning on running 3 5/8" backspaced rims with it. With that little backspacing will it put too much pressure on the ball joints?

What about a rear track bar? Will that help with on-road stability?

We like to do off camber rock crawling...will the spring over make it too tippy?

What shocks are good to run with the soa's?

The BDS FSJ springs are they 2.5" wide????

Thanks for the pics and the advice...

I used to run 4.5" National SUA with a 1" body lift and 33's rubbed in the front with the stock bump stops.

I went to a SOA with 3" springs, 1" body lift, heavy trimming in the rear, moved the front forward 4" and the rear back 2" and 39.5's fit well.

With a panhard bar front and rear, and sway bar up front you will be very happy with the SOA. The only thing you will need to watch out for is axle wrap. There are many methods to control wrap that have already been discussed.

Originally posted by Ketchup Dog
Wow Jake, and I thought I was the only one still running SUA on the jeep tech board :) Looks good.. As far as running spring under with a D44/60 combo... why. whats the point? Just go SOA. Im going SOA as soon as I can get all the parts together for the front axle to be SOA'ed, and Im having the perches welded on SUA and SOA on my 8.8 thats going in at the end of the month, so that the rear SOA will basically be bolt on.
Scott

... But... If you go SOA, that'll just leave me... :(

:flipoff2:
Fawk all that! My SUA flexes pretty damned good (fine for where I wheel--few rocks, just lotsa steep ass hills and mudholes...)

I've (somewhat) mitigated the SUA under-the-spring-clearance problems by using JKS B3 U-bolt plates up front and a Dynatrac U-bolt flip kit in the rear.

This board has enough freakin' SOA Jeeps already! Y'all are afflicted with a case of the 'me toos' says I.

There's really no point in springing it over as is, because of axle limitations and I've got so much invested in my 44s (oxen) it would be stupid to start all over with 60s at this point.

On second thought... If I ever go to 60s I'll spring it over, but with D44s and a RJ350/NV4500 (If I ever finish installing them), 35-inch tires are probably all my wimpy little 44s can handle for now... :flipoff2: Maybe when the D60 Ox comes out... and I win the lottery... Yeah! That's it! When I win the lottery!

Jake

OK...I did a search on SOA's and it seems that there are so many problems to remedy with the set up...the biggest being the center of gravity issue.

I read on Jeep Extremes page that the guy did SOA front and SUA rear to maintain the center of gravity. Website was:

http://www.larks.net/2001/dual_purpose/index.html

He basically ran with National leaf springs front and rear. Up front, fabricated his own shackle reversal, with the front mounts tight against the frame for better clearance. The front springs are spring over axle for better ground clearance. In back, he mounted the five-inch longer leaf springs outside of the frame and above the frame's bottom line. This helps stability and gets rid of that pesky rear spring hanger that hangs YJ owners up all the time. The rear springs are "spring under," to negate spring wrap on steep climbs, etc. Rancho 9000's painted black were installed at each corner.

What about running the front SOA with stock Wrangler springs and a shackle reversal and the rear SUA with the 3.5's I already have???

Would that solve the center of gravity problem??

:rolleyes: