Help me decide what coils to run with 4 linked rear...

[Zeus33rd]

Is there a "proper" way to figure out what coils I need for my 4 linked rear? Do I need to weight the thing, then make a decision based on spring rates? Or can I just get some TJ coils in whatever length I need? No coilovers for now....or atleast not till I hit the lottery.

I'd like to see some pictures of 4 link set-ups on K5/K10 frames....Anyone?

 

[DEMON44]

It's not a K5 but, I've got 5.5" lift Rubicon Express TJ front coils in the rear 3 link of my pickup. It's sits really high, well over a foot lift anyways. I'd have gone with a 4" if I were getting new ones. Friggin soft though.

I know a guy near here, has 4" lift Procomp Ford bronco coils in his rear 3 link. They're obviously heavier rate but he likes them and still flexes like crazy. He runs rocks mostly.

 

[Zeus33rd]

Do you have any pictures?

 

[DEMON44]

Of mine I do, but not my buddies. I'll dig some up.

 

[supersize75k5]

what about bgreen on pirate?

he did coils like that in the back before coil overs

 

[DEMON44]

Heres a few of it just completed. I still have to add tubework to the rear, and I'm hopeing it will sit down further with the added weight.

 

[Zeus33rd]

Daaamn...Those are some looong coils.

My truck is only lifted 4-5" over stock...Want to keep it that way. Hopefully I can find some coils that aren't quite as tall as that. Thanks for the pictures....More food for thought.

 

[DEMON44]

It wasn't supposed to sit that high in "engineering". I will likely knock it down with shorter coils. But cutting 3' of frame off the tail was an after thought too that didn't help.

Yours looks plenty heavy though, might be more balanced.

 

[Dallin]

Stock coils from the front of a late 90's ZJ with a VA will be shorter and stiffer than the 5.5" lift TJ coils. I used a set in the front of an XJ to get a couple inches of lift.

 

[sled_dog]

Stock coils from the front of a late 90's ZJ with a VA will be shorter and stiffer than the 5.5" lift TJ coils. I used a set in the front of an XJ to get a couple inches of lift.

Yeah not sure I'd bet on that. My V8 ZJs are SO soft. If I stand on the driver side door sill of my S10 it leans about 2" to that side. SOFT... I can't yet say, but I'm thinking they are too soft.

 

[seschev3]

There was a blazer years ago that used 67-72 2wd front coils in the rear (if I am recalling correctly) that flexed like crazy. It was in the mags.

 

[ntsqd]

If it were me I'd set up to use coil-over springs, even if no coil-over dampers. They're not the least spendy option, but they come in a HUGE range of rates and most vendors will exchange them for a different rate if you have mounted but not used them.
Alternately, look into the coils sold to circle track racers. Again a large range of rates, and not too spendy.