Coil Spring 4 link setup

airborne63b

Active Member
Joined
Aug 4, 2011
Location
Hickory
I have been looking at different setups for the 4 link on my yota. I understand there are different spring rates, lengths, diameters, and so on. but I am curious as to if there are some made towards larger lengths of travel. Most springs do not give much in down travel and I would like to eliminate the spring falling out with out losing the travel. I am curious if a lift spring with the correct placement could alleviate this problem. This build is not going to be very serious, just trying to keep a lower center of gravity with longer travel. I enjoy budget building. I appreciate any help.
 
ImageUploadedByTapatalk1411643598.563172.jpg


I just finished a rear 4 link on this truck. After finishing the link mounts I mocked up the sprig mounts and tried some different springs to check ride height and droop amount.

I tried stock Cherokee springs,
3" Cherokee springs, and 74 Cadillac Calais rear springs.

I ended up going with the caddy springs. They are long, soft and super flexy. The springs would cycle around 18" of travel before it would pull away from the coil mount. We clamped both the top and bottom of coil to keep it from falling out of mounts and travel now is around 20" then the shock runs out of travel.

The lift Cherokee springs didn't offer any more flex than the stock ones. The lift springs were a lot stiffer to hold the vehicle up higher at ride height but traveled the least out of the three I tested.
 
I would definitely run coilovers if you can afford it. Not only can you get the correct spring rate for your truck, but packaging them is much much easier.

I spent a day mocking up and trying different springs, and articulating the axle, to find these. I only had $30 invested in a pile of coils, but way more in time.
 
When I linked my truck I ran grand Cherokee rear 3" lift coils. I made "rocket ship" bump stops out of roll cage tube with a tapered poly bump on top. It even had fins to recenter the spring. The bottom of the coil wasn't attached to the pad so the rocket kept things in line when it came unseated at droop but I only had a few inches of up travel before the bumps hit making a painful ride at speed. Long story short coilovers made a better ride and fit better too.
 
Mac5005 said:
View attachment 167888

I just finished a rear 4 link on this truck. After finishing the link mounts I mocked up the sprig mounts and tried some different springs to check ride height and droop amount.

I tried stock Cherokee springs,
3" Cherokee springs, and 74 Cadillac Calais rear springs.

I ended up going with the caddy springs. They are long, soft and super flexy. The springs would cycle around 18" of travel before it would pull away from the coil mount. We clamped both the top and bottom of coil to keep it from falling out of mounts and travel now is around 20" then the shock runs out of travel.

The lift Cherokee springs didn't offer any more flex than the stock ones. The lift springs were a lot stiffer to hold the vehicle up higher at ride height but traveled the least out of the three I tested.
Click to expand...

I run a coil spring setup for economic reasons and there isnt much my Jeep wont do! Now I dont mind that my spring slide down a long bump stop. Gives me all the down I can use without the spring poping out. Makes a racket some times, but I live with it til I can afford coilovers.

If you dont want to listen to the racket of the springs sliding up and down the bump stop, you need to call a spring manufacturer and tell them what you want to do. They make springs that are quite long and compress a long way, allowing the spring to open up quite a ways before they leave the upper perch.
 
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