fullsize axles w/o outbarding springs?

i am planing on getting custom fullsize axles for my 73. my question is this: if i can have the axle shop put the perches anywhere on the tubes, should i still out board the spring mounts for stability or just leave them on the frame. i will be upgrading to yj size springs and stretching the wheelbase when i do this so i will already be moving the spring and shackle mounts (not to mention reinforcing the frame in a few areas). the jeep sees highway as much as offroad, so my main concern is stability around 65-70 mph. any thoughts here would be great. i'm not sure if this is even something to be concerned about but i haven't gotten into this area in my rebuild thus far, everything is mostly stock or a common upgrade.

 

The reason for outboard mounting the springs is because the front axle spring mount is usually part of the diff section and cannot be moved any further toward center.

 

would there be any other reason to do so? i know i would have to if i used scout or waggy axles. but i don't know if full size axles with narrower springs will make it lean or wobble at cruising speed. i haven't been able to find any posts on this so i guess i may be worrying about nothing...

 

As long as everything is put together well and aligned, the outboarding itself shouldn't pose any problems that I've ever heard of. I'm in the process of doing the same thing on my '75 with scout(which have 0 deg caster btw) axles but mine prob won't ever see the highway. 35" wheels on a cj5 w/4"sl at 70mph may not be a great combo no matter what you do with the axles.

 

I'm running wide trac axles out of a 85 cj7 i no there not as wide as ur talking but i didn't out board mine an it does fine plus in running soa so that would make a diff at speed which is bout 60 for me

 

not sure If you understood the answer, or if I'm misunderstanding your question. But if you go wide trac axle, you have to outboard. the Diff housing is in the way. Assuming SOA, you would have your driver side spring perch on the tube, and your Passenger side would haveto be on top of the Diff. Unless you used two different springs on the front. one flat the other arched and came out with an extra 4-5" of lift over and above the SOA lift.

Here's a pict frommy SOA build. See the Jack stand on the Passenger side? it is sitting just inboard of the frame rail. Follow it down to the Pumpkin. see where it lines up? on top of the diff housing. you can't really put your spring perch on top. Well you could, but then you'd be at a different height fromt he center line of the tube in comparison to your driver side spring.

 

i guess i should have said that i am going to have dynatrac build the axles any way i want them, so spring and diff interference wont be and issue. i am more concerned with the added leverage the wider axles will have on my narrow spring stance... like putting a fat kid on a seesaw (no offense to any kids here). i have had the jeep up to about 75mph the way it is now, and its not too bad, just a little floaty. with the extra leverage of the wide axles i am wondering if swaybars will be nessesary. it will stay SUA also.

 

in that case, if the Hogs head clears the frame/spring area and the motor, then what I said is out the window. Only clearance you'll have to worry about then is tire to fender clearance, especially being SUA

as for leverage, now I understand what you're getting at. It'll make for some GREAT flex! I'd certainly look at some Sway bar if you plan on driving it on the road. Sure you'll be able to do it, but there's that one time that youhave to swirve to avoid the kid in the road or the idiot that pulls out in front of you and then FLOP or worse. ROLL!

 

I just did mine soa without outboarding them on a high pinion axle. Drove it last week with no shock absorbers. I will drive it this week with shock absorbers, that should take care of the body roll. ( I still need to make shock mounts.) In my opinion it makes it flex better. I will never add an anti-sway bar.

I cut my axles down to be about scout width, and to get the spring perch where I wanted it. But with the back spacing of the wheels, it almost looks full width.

 

i just unhooked my sway bar this weekend u could tell a big diffrence but it did flex a lot more but had more body roll also

 

thanks guys, sounds like i should be just fine... i take it easy on the road anyway, so a little body roll is fine as long as i get the extra flex... now i just have to pony up for the axles.

 

I have wide track custom axles on my 56cj6, they are SOA on early cj springs, I have had no issues, other than with the back axle, because the springs arn't out board there is a long distance from the perch to the brake backing plate, the axle tube has bent on 1 side, I managed to straighten it with channel jack and chain, but it should be stiffened.
unfortunately with a SOA stiffening on top of the tube interferes with the spring perch, and under reduces ground clearance, if I was doing it again, I would slide tubes over the existing axle tubes and plug weld.