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Another leaf spring question


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I have a cracked leaf and my Mj sags a bit now on the passengers side. I want to replace the leaf but I'm to cheap to buy new packs or a used leaf. I have 2 Xj packs sitting in my garage and I was wondering if I could use the main leaf as the second leaf in the Mj pack. Think it would keep it around the same height it currently is? (5"ish Soa) on stock 4wd springs or do you think it would just sag on down?

 

Thanks

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XJs are spring-over, MJs are spring under. The XJ springs have less native arch than MJ springs. Using one leaf (any leaf) out of an XJ pack to replace a broken leaf in an MJ pack cannot possible duplicate the original spring's characteristics.

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Custom leaf packs are the way to go , don't buy pre-made leafs for any other vehicle but an MJ . Springs should be made for your specific vehicle weight and load capability ,

Measurements should be taken from eye to eye for proper arc and lift height . IMO , if the stock springs lasted 20 years and cost 200$ that would be a good investment .

I spent 700$ on over marked rubber tires made in some factory somewhere by some low payed techs . Yep they'll be toast in a year and we'll all be lining up at the tire shop

wanting to pay top dollar for rubber ... :nuts:

 

A good pair of well made smooth ridding leaf packs can be the best investment for your truck . Just to think , leaf packs actually cost more to make than rubber tires ,

but we'll pay more for tires for sure ... :thumbsup:

Maybe thats why the CEO's of Goodyear and BFG are flying around in private jets and we are left paying for their overpriced rubber . I don't see to many owners of spring

and steel manufacturers flying around in private jets , their probably driving an MJ ... :yes:

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  • 3 weeks later...

I have rear leafs from an 85 1/2 ton Chevy Suburban under the back of my MJ... They were a direct boltin with about 2 1/2-3" of lift... You will need to find the 56" version though... The stock MJ rears are 57" long, but the only difference is on the shackle end so it's easily taken up in slack...

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I have rear leafs from an 85 1/2 ton Chevy Suburban under the back of my MJ... They were a direct boltin with about 2 1/2-3" of lift... You will need to find the 56" version though... The stock MJ rears are 57" long, but the only difference is on the shackle end so it's easily taken up in slack...

this would be a good place for gurus to chime in. especially since that amount of lift would be desired by many.

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I have rear leafs from an 85 1/2 ton Chevy Suburban under the back of my MJ... They were a direct boltin with about 2 1/2-3" of lift... You will need to find the 56" version though... The stock MJ rears are 57" long, but the only difference is on the shackle end so it's easily taken up in slack...

this would be a good place for gurus to chime in. especially since that amount of lift would be desired by many.

 

:agree: . Anyone else done this swap?

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I don't see too many owners of spring

and steel manufacturers flying around in private jets , their probably driving an MJ ... :yes:

 

You got that right, Dave. :cheers:

 

I have rear leafs from an 85 1/2 ton Chevy Suburban under the back of my MJ... They were a direct boltin with about 2 1/2-3" of lift... You will need to find the 56" version though... The stock MJ rears are 57" long, but the only difference is on the shackle end so it's easily taken up in slack...

 

The 3/4 ton Suburbans came with 56" rear springs. If you are interested, we have long add-a-leaves made specifically for Comanches that only give a slight amount of lift. Pete did the prototype testing. Ask him for comments on them. We also offer a 10% Comanche Club discount.

 

-Tom

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