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Unread 02-11-2012, 01:37 PM   #1
offroading.net
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Going SOA, what springs will I need

We have NO MJ stuff in the UK, so its XJ or ZJ/WJ only stuff available for me. I am fitting a set of WJ diesel axles under my MJ (because I have a set & they are 3.91 diffs & variloks).

So if I will be going SOA & using an XJ rear spring what amount of lift spring will give me a 4" lift in the back with my setup? (a D44 has a 2-5/8"OD tube)

thanks

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1999 4litre WG Limited, 4"f-4.5"r IRO springs, IRO front long arms, IRO adjustable rear a-arm & LCAs, IRO adjustable RHD trackbar, XJ 242 transfer case, 3.91 Diesel Quadradrive axles, 235-85-16 Grabber AT2's Build thread

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Unread 02-11-2012, 04:47 PM   #2
willi2ds
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1988 MJ Comanche 
 
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I swapped in a 8.25 and just used the stock leaves, got about 6" of lift
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Unread 02-11-2012, 07:52 PM   #3
Garvin
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The XJ leaf springs won't work, you're pretty much stuck with the MJ springs and you can either run them straight stock or make a bastard pack out of them. When I did my SOA, I just use my stock springs. Mine were sagging a little so when I swapped the 8.25 and doing a SOA only netted me 4.5" over stock. A brand new spring will net about 5.5" going SOA. Since you're swapping axles...old axle centerline to bottom of leaf perch + new axle centerline to top of leaf perch will be your lift.
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[B]1986 Jeep Comanche 126000+ miles[/B]
Long Bed, Chevy 350 TPI (5.7L V8), AX15, NP231
Roll Bar, 15/38.5R16.5 Ground Hawgs, Bastard lift (Custom 3-link long arm system, 4.5" Rusty's front springs w/ 1.75" spacers and 6.5" RC shocks, SOA rear), Dana 60HP/Sterling 10.25, 4.10's, Recessed winch, more mods to come...

[B]1992 Jeep Comanche 174000+ miles[/B]
Short Bed, 4.0L I6 HO, AX15, NP231
In the process of doing a frame up restoration.

...RIP...
[B]1990 Jeep Cherokee XJ 207774 miles[/B]
4.0L I6, AW4, NP231. Tom Woods SYE and Drive Shaft, Rusty's 8.0" Long Arm Suspension Lift, 36/13.5R15 Super Swamper IROK's, Dana 30 Front, Tube Diff Guard, Dana 44 Rear, 4.56 gears, Ox Locker, disc brake conversion
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Unread 02-12-2012, 04:23 AM   #4
offroading.net
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Will an XJ add a leaf fit in an MJ spring pack? I think I will be making a leaf pack up.
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Steve Wright

1999 4litre WG Limited, 4"f-4.5"r IRO springs, IRO front long arms, IRO adjustable rear a-arm & LCAs, IRO adjustable RHD trackbar, XJ 242 transfer case, 3.91 Diesel Quadradrive axles, 235-85-16 Grabber AT2's Build thread

2003 2.8CRD KJ Limited

Previous Jeeps - 8 XJs, an MJ, a WJ, a TJ & a KJ

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www.offroading.net
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www.oldchadscider.co.uk
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Unread 02-12-2012, 09:01 AM   #5
Garvin
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1986 MJ Comanche 
 
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An AAL from an XJ will net you no lift.
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[B]1986 Jeep Comanche 126000+ miles[/B]
Long Bed, Chevy 350 TPI (5.7L V8), AX15, NP231
Roll Bar, 15/38.5R16.5 Ground Hawgs, Bastard lift (Custom 3-link long arm system, 4.5" Rusty's front springs w/ 1.75" spacers and 6.5" RC shocks, SOA rear), Dana 60HP/Sterling 10.25, 4.10's, Recessed winch, more mods to come...

[B]1992 Jeep Comanche 174000+ miles[/B]
Short Bed, 4.0L I6 HO, AX15, NP231
In the process of doing a frame up restoration.

...RIP...
[B]1990 Jeep Cherokee XJ 207774 miles[/B]
4.0L I6, AW4, NP231. Tom Woods SYE and Drive Shaft, Rusty's 8.0" Long Arm Suspension Lift, 36/13.5R15 Super Swamper IROK's, Dana 30 Front, Tube Diff Guard, Dana 44 Rear, 4.56 gears, Ox Locker, disc brake conversion
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Unread 03-18-2012, 02:13 AM   #6
carnuck
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1984 J-Series Truck 
 
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AAL in an MJ pack will ride like a rock if you SOA
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Unread 03-22-2012, 03:42 PM   #7
OriginalNVMJ
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MJ rear springs

Check out General Spring, Hellcreek Springs & Deaver Spring
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