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  #1  
Old 04-08-2003, 08:53 PM
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Default Torsion Bar Installation

I just got a set of 383 Mopar Performance torsion bars for my '64 Barracuda. Is there a front and a back to these things? Both ends of the bars have the the number 894. Under that on one end is the letters FB, and on the other end are the numbers 231. What does all this mean?
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Todd W. Rhynes
1964 Barracuda 340, 4-speed, aluminum heads, 340 exhaust manifolds, big bolt pattern, 11" disc brakes, 15"x7" wheels
1964 Polara 500 383, A/T
1967 Barracuda Commando 273, A/T, working A/C, disc brakes
2000 Durango R/T, K+N air intake, black Chow Chow in back
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  #2  
Old 04-08-2003, 09:18 PM
jasonsevilclone jasonsevilclone is offline
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Default Same Same

It doesn't matter which end goes where as to what the #'s mean, who made 'em?
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Old 04-08-2003, 09:23 PM
jasonsevilclone jasonsevilclone is offline
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Default I Take It All Back

I just replaced the torsion bars on my coronet with a set from mancini racing and they are the same from front to back. I don't know about A bodies though. The numbers are probably the phone number of some hot broad from luxumbourgh.
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  #4  
Old 04-09-2003, 11:27 AM
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Default

Well, I would think that if there is a right and a left marked on each one, then there would also be a front and a back.
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Todd W. Rhynes
1964 Barracuda 340, 4-speed, aluminum heads, 340 exhaust manifolds, big bolt pattern, 11" disc brakes, 15"x7" wheels
1964 Polara 500 383, A/T
1967 Barracuda Commando 273, A/T, working A/C, disc brakes
2000 Durango R/T, K+N air intake, black Chow Chow in back
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  #5  
Old 04-09-2003, 11:54 AM
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Default

I have read where folks have said to mark the front and back of torsion bars when you pull them out so you can put them back in the same way. I think the purpose is because they have spent their whole service life twisting in one direction. Now obviously, on rebound, they twist back to as near as their original position as possible, but, if you were to install them backwards, they would be twisting the other direction, which I think may damage them. I dont know for sure, but this sounds reasonable. I dont think new ones will matter until they have been used for a while tho. Maybe someone with more experience will chime in on this subject.

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Old 04-09-2003, 12:04 PM
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Default

Quote from Chiltons Manual

"Contrary to appearance, the torsion bars are not interchangeable from left to right. They are marked with an "R" or an "L", according to their location.

Then it goes on to a step by step installation guide.
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Old 04-09-2003, 12:16 PM
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cuda,
yes, the bars are clearly marked L and R, however, they arent marked as to which is the front end or rear end of them. Am I wrong about damaging them by reversing front to back when re-installing them?

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Old 04-09-2003, 12:22 PM
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See what Bbeckwith and I are saying? If the bars are right and left, then if you take a bar marked for the right side, and install it backwards, it's the same as installing it on the left side. Right?
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Todd W. Rhynes
1964 Barracuda 340, 4-speed, aluminum heads, 340 exhaust manifolds, big bolt pattern, 11" disc brakes, 15"x7" wheels
1964 Polara 500 383, A/T
1967 Barracuda Commando 273, A/T, working A/C, disc brakes
2000 Durango R/T, K+N air intake, black Chow Chow in back
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Old 04-09-2003, 03:33 PM
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Default Hey Cuda! Thanks for the link!

I started removing my entire driver's side front suspension this morning in order to install new bushings, and now I have three pieces just "hanging" there: the torsion rod, the control arm, and the strut that's attached to the K-frame.

I know that I need a special tool to remove the torsion bar, but, I don't see how twisting the bar will remove it. Then I realized that the tool isn't used for twisting because the rod isn't screwed in place, d'uh......

Now that I've learned something new today, it's time to have a beer.
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  #10  
Old 04-09-2003, 04:13 PM
jelsr jelsr is offline
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Default

When I was gathering parts for my circle burner I ordered a set of 1.16's from MP, and recieved 2 R's. I called and explained the situation and was asked to return 1 for replacement. After about a week I recieved the same bar back with a written explanation that there was no difference in the Performance bars, just the stockers were location sensitive. After examining the rest of my bars (1.06 thru 1.22) I could see what they meant. Some sets are like a hex shaft with the middle turned down (flats are even) Some are staggered (flats are offset) The offset puts a hex point at the center of the flat on the other end. Stockers are offset also but the point on the hex is not centered on the flat at the other end of the shaft, they are location sensitive.
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  #11  
Old 04-09-2003, 05:11 PM
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Default Let us chew on this...

Perhaps the FB stamped on one end of the bars means Frame Bracket. If this is correct, it would prove my point that there is a right and left, AND a Front and Back to the bars.

Any comments on this?
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Todd W. Rhynes
1964 Barracuda 340, 4-speed, aluminum heads, 340 exhaust manifolds, big bolt pattern, 11" disc brakes, 15"x7" wheels
1964 Polara 500 383, A/T
1967 Barracuda Commando 273, A/T, working A/C, disc brakes
2000 Durango R/T, K+N air intake, black Chow Chow in back
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  #12  
Old 04-09-2003, 08:44 PM
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Madman Stephan,

You have released the pressure on the torsion bar adjust bolt I take it, and removed the torsion bar retainer clips? If so, go ahead and unbolt the strut rod from the k-member as well as the bolt holding the lower control arm to the k-member. You can then try to loosen the torsion bar from the frame by pulling up and down and backwards on the lca. This sometimes helps to loosen the torsion bar. Definitely a good idea to mark the bar as to which end is front and which is back, just in case. Good luck

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