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Unread 10-31-2009, 08:09 AM   #1
Strings72
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How Much Torque on Shackle Bolts?

I'm puttting my suspension together for the last time. Currie didn't give me torque specs on there shackle bolts, How much do you think is enough?

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1996 DODGE 2500, ECLB, Cummins, 5spd, 4x4. 334hp-738ft/lbs, 25mpg (tow Rig/DD)

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Originally Posted by cheftrail View Post
I may be dumb, but what does BBC mean? Is it anything like BBW?
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Unread 10-31-2009, 08:15 AM   #2
-AC-
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I'm pretty sure the spec for my CJ-5 is 20ft/lbs, of that helps any... I'd have to go look to be sure, but 100ft/lbs for the pivots and 20 for the shackles sticks in my head.
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Unread 10-31-2009, 08:15 AM   #3
gmakra
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Its like 35-45 Ft Lbs,you dont want to tighten them to tight so that you pinch the bushing. When you tighten the shackle bolt you want to be able to turn the bolt with slight pressure on the wrench.

If you torque the whole assembly too tight the ride will be very rough since the shackle cant not move with the flex of the suspension system.
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Unread 10-31-2009, 08:22 AM   #4
JeepHammer
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There is no set torque on shackle bolts, mostly because you are supposed to use a LOCKING NUT...
You simply tighten until you see 'Rubber' take up a little, and leave them alone.

Over tighten, and you smash the bushings and the get cut through really easily.
Under tighten, and you will have shackles/bolts moving around letting the suspension move around when you make steering corrections.

Snug LOCK NUTS up until you see the 'Rubber'
(rubber, urithane, or what ever your bushings are made of)
bulge a little, and you are done. Nothing to it!
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Unread 10-31-2009, 08:36 AM   #5
-AC-
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I just got off my lazy butt, went out to the shop, and checked my Chilton's. They say 24lbs for the shackel nuts and 100lbs for the pivot bolts, 1977-86. Would I take the word of a lot of experienced Jeep people over the guys at Chilton's? Every time...

But, for what it's worth, that's what the book says.
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Last edited by -AC-; 10-31-2009 at 08:37 AM.. Reason: misspelling
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Unread 10-31-2009, 08:43 AM   #6
Strings72
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thanks guys I really dont want a rough ride
strings
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2003 tj, 4.0, 5spd, NP241 (4:1), 8.8 rear, 4:10, trail ready bumper/rockers, engo 9k, 3in bds front/2.5rc rear, 1.25 jks BL, 33'' km2"s.

1996 DODGE 2500, ECLB, Cummins, 5spd, 4x4. 334hp-738ft/lbs, 25mpg (tow Rig/DD)

Quote:
Originally Posted by cheftrail View Post
I may be dumb, but what does BBC mean? Is it anything like BBW?
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Unread 10-31-2009, 10:19 AM   #7
Mike Romain
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The stock ones came with stainless sleeves in them so when the lock nut came up, it came up hard on this sleeve. If you don't have replacement sleeves or haven't dug out the originals, then as JeepHammer says, be gentle on them. I had a shop change mine, for issues like that and they had to torch the rubbers to get the old sleeves out.
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Unread 10-31-2009, 10:30 AM   #8
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Mike is correct, and what I told you is for rubber or urithane or whatever 'Mushroom Head' bushings, not factory bushings...
Factory bushings have spacer sleeves to keep you from screwing up too bad!

Just crank down until the mushroom heads start to 'Puff Up' or get smashed a little,
AND STOP!

If you keep cranking down to factory specs, you WILL cut the heads off the bushings.
----------------------------------------

You might not believe this, but this is what I handle every day at work....





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Unread 10-31-2009, 11:30 AM   #9
Strings72
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Where Do you work that uses all those poly bushings?
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2003 tj, 4.0, 5spd, NP241 (4:1), 8.8 rear, 4:10, trail ready bumper/rockers, engo 9k, 3in bds front/2.5rc rear, 1.25 jks BL, 33'' km2"s.

1996 DODGE 2500, ECLB, Cummins, 5spd, 4x4. 334hp-738ft/lbs, 25mpg (tow Rig/DD)

Quote:
Originally Posted by cheftrail View Post
I may be dumb, but what does BBC mean? Is it anything like BBW?
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Unread 10-31-2009, 02:29 PM   #10
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Air suspension company for hot rods...
We use air springs (air 'bags') instead of steel springs for better ride, adjustable ride, adjustable height and we race the cars very successfully.

Usually, if you have a race car, you have a very stiff suspension and harsh ride,
With air springs, you change the air pressure and you can go from highway cruising like a Cadillac or Lincoln to a flat out race car simply by changing the air pressure.

You can also change the ride height,
Down low and fast for racing, up higher for highway cruising, and way up high for speed bumps, parking curbs, giant pot holes, ect.

Looks something like this,









We also make our own shocks since there just isn't anything on the market that will give us the adjustment we want...







Sway bars are an issue with these old, large body cars, so we make our own sway bars also...



And we make all our own 4 link, 3 link and A-arms in house...



And the company cars are pretty cool! Noting like doing your daily commuting in a vintage muscle car that has been turned into a SUPER Muscle Car!



It's a FUN place to work!
Always a good day when the boss encourages you to leave 1/8 mile of black marks or pull 1 G. on the skid pad just to see if anything is going to fall off!

If you live anywhere around Las Vegas, the SEMA show starts on the 4-Nov-09 and the road show crew will be there with the best products of ours from the past, and the new stuff for next year on display...
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Unread 10-31-2009, 04:47 PM   #11
-AC-
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Ummm... My company car is a Dodge Minivan...

Am I cool too?



Didn't think so...
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Unread 11-01-2009, 06:56 AM   #12
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I don't drive the GSX anymore, it's a $100K SMC, Now he's got me driving a '66 Impala we are working on a kit for.
I actually like the Impala better! More room for my LARGE BUTT!
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Unread 11-01-2009, 11:23 AM   #13
Strings72
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Wow!!!! You guys hiring hahaha
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2003 tj, 4.0, 5spd, NP241 (4:1), 8.8 rear, 4:10, trail ready bumper/rockers, engo 9k, 3in bds front/2.5rc rear, 1.25 jks BL, 33'' km2"s.

1996 DODGE 2500, ECLB, Cummins, 5spd, 4x4. 334hp-738ft/lbs, 25mpg (tow Rig/DD)

Quote:
Originally Posted by cheftrail View Post
I may be dumb, but what does BBC mean? Is it anything like BBW?
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Unread 11-01-2009, 12:43 PM   #14
jscherb
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According to the Jeep factory service manual, section J (Suspension), page J-2, proper torque for spring shackle nuts is 24 ft-lbs.
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Unread 11-01-2009, 01:57 PM   #15
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Again, if you are running factory bushings with sleeves, the about 24 Ft.lb. is correct.
For aftermarket bushings with 'Mushroom' heads, you should bulge the bushings a little, and leave things alone.
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