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Unread 02-26-2010, 11:08 AM   #1
nichboy
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1985 CJ7 
 
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Leaf Spring Replacement

How can I tell if my rear leaf springs need to be replaced. (1972 cJ-5)

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Unread 02-26-2010, 11:17 AM   #2
alex211
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1995 XJ Cherokee 
 
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Are they broken or sagging?
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Unread 02-26-2010, 12:03 PM   #3
nichboy
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I just bought this jeep, but looking at it from the side it appears the rear is alot lower than the front. I will try and post a pic. If I need to replace i need to order this weekend to get whitneys 20% off.
Thanks
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Unread 02-26-2010, 12:04 PM   #4
alex211
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If the rear is sagging then I would get some new springs, there may be couple broken leafs in the spring packs too.
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Unread 02-26-2010, 12:12 PM   #5
nichboy
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There doesn't appear to be any arch in the springs, they are just kinda flat.
Are those springs that difficult to replace. Thanks for the help
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Unread 02-26-2010, 12:16 PM   #6
CjAl
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do they mount on top of the axle or underneath?
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Unread 02-26-2010, 12:21 PM   #7
alex211
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Al CJs are spring under, the springs are fairly easy to replace. All you have to do is unbolt every thing and bolt the new ones in. Make sure you get some new U-bolts, bushings, and shackle bolts.
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Unread 02-26-2010, 12:27 PM   #8
CjAl
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I know they are spring under. But he mentioned they are flat so i'm thinking they are either WAY worn out or someone did a YJ spring over (since it's a flat spring) and it mabey just doesn't match up with the front ride height
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Unread 02-26-2010, 12:38 PM   #9
godfather901
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Cj Springs are 1" and something Yj springs are 2" and something (correct me if I'm wrong). Just measure the width of the springs and if they're 2"+ then it's ok if they are flat, opposite if they measure >2" (i.e. should not be flat). They do offer SUA YJ conversion kits so it's not a far fetched idea that you might have YJ springs.
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Unread 02-26-2010, 12:39 PM   #10
alex211
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Stock springs are 1 and 3/4 inches wide.
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Unread 02-26-2010, 12:41 PM   #11
nichboy
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They mount underneath the axle.
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Unread 02-26-2010, 01:05 PM   #12
CjAl
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then you need new springs. I've seen alot sag but i've never seen them totally flat
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Unread 02-26-2010, 01:28 PM   #13
Scooter402
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Then my rear springs must be waaaaay worn out...they have negative arch.
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Unread 02-26-2010, 01:39 PM   #14
CjAl
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ya you better fix that. need some 6"lift spring SOA on that mud racer. lol
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Unread 02-26-2010, 02:02 PM   #15
Scooter402
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Well, I've got some unknown springs that were pieced together from a waggy and something else, pretty sure they should ride okay. I know they have a decent arch to them, I'm actually going to go back to SUA on the rear, probably too on the front. I'm riding SOA right now front and rear, Chevy 4" springs on the front, stock CJ springs on the rear. These other springs I'm putting in have enough arch that it just might sit at the same height, probably about an inch or two lower in the rear. I'm not afraid of chopping the body up some. I'd actually prefer it to sit a little lower. It's fast enough and gets enough wheel speed that I'm not concerned with getting buried in the mud...it's a mud-skipper.

The front, on the other hand, I'm concerned about driveshaft clearance with the transmission pan, going to have to figure out what I'm going to do with steering, etc., when I go back to SUA...that, and it'll be a quite a trick figuring that one out on a Chevy front axle.
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