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post #1 of (permalink) Old 12-07-2001, 10:51 AM
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Spring Ideas?

Hey Guys.. My little brother just bought a 78 CJ5, and he needs some serious suspension work. From what he has told me the springs are shot, and he is bottoming out the shocks to the point that it is bending the mounts. I drove it today, and yes, it rides terrible.

He plans on wheeling it, but I don't think he wants tons of lift right now. He just wants to improve the ride. It has 31's right now, I think he wants 33's. What springs would you suggest? Or a SOA, would that be better? Price is an issue, and he doesn't have access to tools to weld on spring perches, or track bars or anything.. Thanks for your help!



<font color=red>- Zack Douglas - </font color=red>
86 4runner - almost stock - SLC Utah
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post #2 of (permalink) Old 12-07-2001, 11:07 AM
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Re: Spring Ideas?

If he just wants to go to 33s a 4 inch suspension or 2 1/2" suspension and 1 or 2" body lift is the way to go. IMO avoid most so called "softride" type suspensions, they seem to not hold up, especially to much wheeling and start sagging. SOA is a lot of work, and unless he is equipped to do the welding and cutting himself will run into bucks.

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post #3 of (permalink) Old 12-07-2001, 11:12 AM
 
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Re: Spring Ideas?

IMHO - as price, time and tools/skills availability are all issues... best bang for buck choice is a complete lift kit. You pick the mfg... Rancho is good as they are available everywhere, good quality, not overly stiff, reasonable price and have good warrantee coverage. Probably 2" to fit the current 31s or 4" to fit 33s. Be sure all five bumpstops are installed - could cause over compression without them.
You answered yourself re. SOA as that conversion requires much fabrication.
Also replace all shackle & spring bushings. Check tie rod, drag link, ball joints, etc for looseness too.
Does it have extended shackles? Too long shackles can cause crappy handling/ride too.

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post #4 of (permalink) Old 12-07-2001, 11:13 AM
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Re: Spring Ideas?

Thanks for the reply.. What are some of the good brands of springs to look for then? I am asking 'cuz I want to have some names that I can start to search for, and read up on, ect.. Thanks!

<font color=red>- Zack Douglas - </font color=red>
86 4runner - almost stock - SLC Utah
post #5 of (permalink) Old 12-07-2001, 11:15 AM
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Re: Spring Ideas?

Thanks.. I have heard good things about the Rancho springs on the Toys, I think I might put some on when I do my SFA..

I think the bad ride is a combination of the springs bottoming out, and the spring bushings are shot, and pretty much gone..

<font color=red>- Zack Douglas - </font color=red>
86 4runner - almost stock - SLC Utah
post #6 of (permalink) Old 12-07-2001, 11:47 AM
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Re: Spring Ideas?

Actually Brad is right about the softride springs, but it only applies to the 2.5" lift. On the 4" lift you want to go with the Superride. The reason is because the arch of the 4" springs doesn't allow it to sag easily, but the arch is such that they don't flex like a monster either.

Skyjacker and Superlift are good companies, I have the 4" Superlift ("superride" rear and HD front) and it hasn't sagged an inch.

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post #7 of (permalink) Old 12-07-2001, 01:53 PM
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Re: Spring Ideas?

I have to take issue with installing some of those ridiculously long bumpstops, they limit your suspension travel way too much. What I did was leave my stockers there, then slowly run the suspension of a front and rear tire up until you are gonna make contact with a fender, then extend your stock bumpstops. I ended up using square tubing and lowering my stops just one inch, and ended up with a lot more suspension travel than those silly 4"long urethane stops give you. Don't worry about overcompression of the springs, it won't matter one little bit to a decent spring.

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post #8 of (permalink) Old 12-07-2001, 02:54 PM
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Re: Spring Ideas?

DON'T GET PRO-COMP!!! (Yes I'm yelling, mine are harsh.)

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post #9 of (permalink) Old 12-07-2001, 04:27 PM
 
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Re: Spring Ideas?

Splitting hairs and just generally feeling the need to pipe up....

cjjeepercreeper -
no one said to install extended bumpstops. I did say to make sure bumpstops are installed.
(the hair splitting part [img]/wwwthreads_images/icons/tongue.gif[/img]) Over compression of a leaf spring is not possible. Over flexing is, and repeated over flexing will lead to sagging and to failure faster than not. How much faster?? ...likely not an issue here. Beside the point at any rate.
Over compression of shocks is possible, which can lead to bent or broken shocks or shock mounts. The orig post from ledhead does indicate possible bending of shock mounts.
The pic shows a CJ-5 sitting in snow... salt melts snow on roads... snow melts to water... CJs rust (esp when exposed to water)... salt makes them rust worse... How many old CJ are running around with OE bumpstops rusted off? Here in the rust belt, plenty. Where you spend your days... likely rust is less of a problem.
ledhead indicates that this Jeep will be lifted. Lift kits usually include longer than stock shocks.
Wheeling any Jeep w/o bumpstops is begging for problems with overcompression - IMHO. Hence, my comment: "Be sure all five bumpstops are installed - could cause overcompression without them"


I agree, too long a bumpstop = too much of a good thing = a bad thing. The method you describe to set bumpstop length is good - IMHO. Personally, I like to stop an arched leaf spring just as it reaches flat. That is me, my HO... I am sure others see it differently.


That is all. Thanks. I feel better now.

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post #10 of (permalink) Old 12-07-2001, 05:33 PM
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Re: Spring Ideas?

PROCOMP SPRINGS SUCK, NOT JUST TOO HARSH, THEY ARE SIMPLY CHEAP SPRINGS!!!!!!

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