what length control arms?

[JeepcoMJ]

okay, so for NOW while I wait for the new credit card to come or a loan to clear (I make money, just not enough to get the 89 done by the 10th of august with a TNT longarm....which is being budgeted for), I am gonna lengthen a set of 2" lift lower control arms.

 

what I need to know is, for 5.5" of lift, what is the ideal length of the lower control arms from eye to eye. also, what is the ideal length for the upper control arms eye to eye?

[mjeff87]

Check the bottom of Jim's page:

 

http://www.yuccaman.com/jeep/re_db.html

 

HTH,

Jeff

[JeepcoMJ]

thanks, that's perfect!

 

[JeepcoMJ]

for a 6.5" lift the lowers need to be 17.18" center to center, and uppers should be 15.625" center to center. according to that link, that's what it needs for normal operation.

[carnuck]

I think it's the stock WJ arms that have the right length AND have a curve built into them to clear wider tires.

[Twisty]

no, WJs are the same length as stock MJ arms...but they have that bend. ;)

[rockhardzj]

FukNuts Offroad sells some aftermarket ones, but I do not reccommend buying, or even talking to them.

[JeepcoMJ]

yea, I'm building my own. not even interested in spending money on control arms as it will get a TNT y-link system in the next year.

 

the whole lift project, including tires and rims, will cost me just over $600. that's a 6.5" lift, and 33x12.50 tires.

 

that's with home-built control arms (lengthened aftermarkets I got for cheap), SOA rear, and my own swaybar links. I bought the lift coils and the trackbar, and will buy a rear brake line but lower the fronts to work.

[CEThomas]

Good luck on lowering the front lines :cheers: I was going to relocate the line lower but just had to put on YJ lines, You may get them to work if you take all the bends out of the steel line and do not secure it to the body, or if you have replaced the factory lines and have some extra steel line that you can pull down out of the engine bay.

[JeepcoMJ]

here's what I did today on the LCA's.

right after the bend.

cut them on the bandsaw at my friend's machine shop

making the plug/extensions

had to use the lathe for that...

all done with extensions

then I cross-drilled the control arms on both sides..8 holes per control arm... for extra strength in welding

 

welding them now, then I will build the uppers tomorrow afternoon, then go to the fair and volunteer for a bit, and gonna install the front lift on saturday.

[Pete M]

I would add some 1/4" ribbing to the arms.

[JeepcoMJ]

why? and where?

 

I think it will be strong enough...it's a beefy arm and def. quality welds on it. (when they're put on that is...)

[Pete M]

Along the length to help support the bar. Control arms are under a lot of stress with wheeling and it's not hard to bend them.

 

Sorta like this:

 

Like I said, it's just something I would do.

[JeepcoMJ]

Along the length to help support the bar. Control arms are under a lot of stress with wheeling and it's not hard to bend them.

 

Sorta like this:

 

Like I said, it's just something I would do.

 

yeah, I was thinking of that...but the whole point of bending the control arms was so that articulation the top of the control arm doesn't contact the coil spring mount.

 

I like the idea...and I can always change it if I need to.

[CEThomas]

That is what mine are ours are like, and you will be OK to clear it.

 

[JeepcoMJ]

That is what mine are ours are like, and you will be OK to clear it.

 

 

no I won't, the bend is on the lower side of the axle...