Adjustable Toe and binding Reduction: Stage 2 Measure/Calcs

Re: Rear Control Arm Camber and Toe Bolt Diameter

I hope my measurments are good. However I can never interpret them correctly, so I posted pictures =)

Inner Toe bracket


Inner toe bracket with a different tool


Outer toe bracket


Bolt diameter


What project you got going on :-D

Re: Rear Control Arm Camber and Toe Bolt Diameter

All your measurement tools are in 16th… so just count the number of markings/16.

Your measuring tape and caliper both measured for the toe bracket spacing~2.5625inches and ~0.5625 on the shoulder diameter.

What I am planning on doing is chopping off the bushing ends of my rear control arms and adding in an adjustable joints, thus allowing me to bring my toe back to within spec and eliminate bushing binding from an extreme drop. What I am trying to determine is if I want to use aurora end links with machined spacers, or try one of these forged end rods for off road truck suspension.

As luck has it both the 'Ballstic' and 'Jonny' Joint measure:
Bushing length: 2.625"
Bearing thru hole: 9/16"
Cost: $41.95/ea Jonny and $53.99/ea for the Ballstic

In which you get down to brass tacks your actual toe length measurement was 66.4mm~2.614"



Both these joints are forged, rebuildable and greasable.





There is also the option of using a forged end rod as well with the same dimensions as measured above.





Cost: $79.99/ea



You can also buy threaded ends to be welded into pipes… but I would rather machine out square stock to weld into the control arms rather than trying to use a round peg for a square hole. I am picking up a rear control arm and mating half of the cross member (thanks JoeZ31) to get some measurements for cutting, and how deep I can make my threaded inserts.


I leaning towards the Joint version over the Rod. Pivot movement should be to a minimum because of the way the semi trailing arm is designed and the only reason there is binding is because I am lowered. Why spend the extra 30/joint for extra movement if its not necessary.


Thanks 862sik for the prelim measurements. Its appreciated.

Re: Rear Control Arm Camber and Toe Bolt Diameter

ballistic fab is the bees knees, i've used em before and they're solid.

Re: Rear Control Arm Camber and Toe Bolt Diameter

lookin forward to what you do with these badass rod ends

Re: Rear Control Arm Camber and Toe Bolt Diameter

Are you just going to modify the inner toe? Or you are also doing the outer?

Re: Rear Control Arm Camber and Toe Bolt Diameter

[Topic name change]

Planning on doing both inner and outer, as you are either going to have binding in both of the joints or none at all. My only concern is that two rod end joints in the same direction will now allow more free side to side play in the control arm.

Basing my idea off this e30 setup, but can you see where my concern comes from? This may allow the control arm to pivot side to side. Granted the pivot points are pretty far apart which should keep movement to a minimum, if any. But I really wont know unitl I play with a mock-up.


If the above doesnt pan out, I do have a plan B. This would involve flipping or positioning one of the ends so that they are perpendicular. Now this would require a whole new mount fabbed onto the rear x-member. And I would use a more conventional rod end and use spacers to adjust camber.




But if it does come to plan B, I would probably buy another x-member and set of vented brake rear control arms to fab. However before I would commit to "B" I would need to do a cost benefit. At that point, it may be cheaper to sell what I currently have and go multi-link.







But before I get ahead of myself its only going to cost me a set of end rod joints to prove out plan A. Joe is being kind enough to supply me with 1/2 an x-member with mating control arm. After some measurements I will lop off the bushing ends, wedge in some wood inserts, drill a hole and press in the rod end joints. I can easily measure/see if there is any play. Probably wont happen until around the christmas time when I can get the x-member and control arm unless someone else will sell/provide one I can pick up in SC, NC, GA.

Re: Adjustable Toe and binding Reduction: Stage 1 Planning

I have a 88t subframe and 1 88 na control arm ATM. If I get to the sub swap before then, I will have another subframe and 2 more arms. Cheap, but not free, 2j's get spensive!! PM me if interested with a offer.

Re: Rear Control Arm Camber and Toe Bolt Diameter



You saw the e30 setup I posted last year right? They had adjustable camber built in as well. I will see if I can dig up the link.

Re: Adjustable Toe and binding Reduction: Stage 1 Planning

I can't visualize how there could be side to side movement if the rod ends and spacers have a tight fit

edit: nvm

Re: Rear Control Arm Camber and Toe Bolt Diameter

Not sure, but my guess is Jake Larsen's DTM setup: http://www.s14.net/jakesdtmtours/suspension.html

Also some good e30 enough here: http://forums.bimmerforums.com/forum/sh … ?t=1344968

and here: http://www.bigcoupe.com/phpBB2/viewtopi … 7f4624bea3

It's all a little more intense than I am willing to go with the semi trailing. Plan A will be my last full efforts with the semi trailing. After that it would be just be beneficial to cross into the multi link land. I am not giving up hope yet. Each step forward and can almost taste victory. The fact that these joints are dimensionally right on.... is a good sign.

Re: Adjustable Toe and binding Reduction: Stage 1 Planning

Not axial, but pivot. Hopefully the pivot points are far enough out, and at slight enough opposed angles there will be none.

Re: Adjustable Toe and binding Reduction: Stage 1 Planning

If you are thinking it may pivot, then either put spacers on the side, which should be more than enough (you can use the factory sleeves cut) or re-weld the tabs on the crossmember to me not as wide.

May the force be with you :lol:

Re: Adjustable Toe and binding Reduction: Stage 1 Planning

Sounds like a solid plan adam, i remember talking to you about doing this way before i did my multilink swap. Keep up the good work man!

Re: Rear Control Arm Camber and Toe Bolt Diameter

[quote]adamvann3 wrote: That's the one! Never seen the bimmer forums one, decent execution it just lacks alot in the quality of hardware he chose. Also, can't figure out why he used square tube......