Building a Triangulated 4-link

rescu2000 · **Posted:** Sun Jul 19, 2009 10:17 pm

OK, I'm going to try to learn as much as I can about suspensions and build my own 4-link. Here's what i've found so far. I need real life application experience from you guys to help me refine it.

4-link Instructions
1 ¾” X 0.25” DOM link bars– Possibly sleeved for extra strength
0.188 wall 1 3/4-inch or larger DOM or square tubing for the rear upper bridge

For the mounts 0.25-inch-or-larger material
All bolts need to be 7/16” or larger grade 8 hardware

Rear links –
Lower axle link mount on front of axle
Upper axle link mount 8.75 – 9” above the lowers
Frame link for lower link should hold bar at 5 to 10 degrees (should hit around the tcase output shaft)
Front upper link is 4.38 to 4.5” above the lowers.

Upper link should be 70% the length of the lower link (60% - 80% limits)

Rear axle links mount as close as possible to the brake backing plates

Angle of the upper link bars can be no less than 40% (when viewed from below looking up)

Front separation of the lower links should be 50 – 70% of the rear separation

Center of gravity estimate should be around the top of the bell housing to the ground.

I'll have to do some math and sketching to ensure that the mounting points we have are ok from an amount of antisquat perspective.

ohv_kj · **Posted:** Mon Jul 20, 2009 10:53 am

were u thinking of a single or double triagulation? i have a sigle triagulation in the rear... i would do just the uppers and keep the lowers stright if your going to be driving it on the road as well...

rescu2000 · **Posted:** Mon Jul 20, 2009 11:27 am

The above is for a double triangulation. I'm still doing research on the different types, but the article at Petersons implied that this would be OK for street driving as long as you mounted the bars at the right angles. I could add a track bar. I am in no way an expert though.

ohv_kj · **Posted:** Mon Jul 20, 2009 12:03 pm

rescu2000 wrote:

The above is for a double triangulation. I'm still doing research on the different types, but the article at Petersons implied that this would be OK for street driving as long as you mounted the bars at the right angles. I could add a track bar. I am in no way an expert though.

if done right you will be fine...i would still run a sway bar...

p.s. some of us are going to ure this weekend

rescu2000 · **Posted:** Mon Jul 20, 2009 10:48 pm

I gotta get mine back up in the air before I head back to URE. My lift has sagged back to stock

Building a Triangulated 4-link

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