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Torsion bar ID help #3074329
09/04/22 11:33 PM
09/04/22 11:33 PM
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Washington
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hemienvy Offline OP
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hemienvy  Offline OP
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Can't find any info on 4532458 (458r on the bar), and 4532459 (459l on the bar).

These are 1.00-in diameter, 41-in long, there might be a P on the part number.

I found a photo of 4532456 and 457, these are supposedly .980-in diameter.

The only other 1.00-in T-bar for B/E is a P5249159, these are for both left and right.

I've had these 458/459 for about 20 years, did the part number change ?
They appear to have a lot of hex offset between front and rear hex, I was hoping I
could find some info or maybe installation instructions.

37985E57-919B-4D9D-94AC-D724CEE715FB-2.jpg
Re: Torsion bar ID help [Re: hemienvy] #3074832
09/06/22 03:52 PM
09/06/22 03:52 PM
Joined: Jan 2003
Posts: 18,389
UPPER MICHIGAN, MARQUETTE COUN...
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NITROUSN Offline
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UPPER MICHIGAN, MARQUETTE COUN...
Old MP performance parts. 41 inch B and E bodies.

Re: Torsion bar ID help [Re: hemienvy] #3074962
09/06/22 10:01 PM
09/06/22 10:01 PM
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Posts: 5,385
Pikes Peak Country
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TC@HP2 Offline
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Pikes Peak Country
So back around 1995 I bought a pair of .96 bars and used them for a few years in my Satellite with a 1.25 sway bar for a street handling car. They arrived zinc chromate green with made in Canada stickers. When I decided to take it drag racing, I put the stock .88 bars back in it and hung on to the old .96 bars. About 2004 I picked up a Challenger that was going the autocross route so I bought some 1.24 bars. Once these bars were installed I put my old .96 bars in that box and forgot about them.

So I see your question, dig up an old 2001 Mopar Performance catalog, check the t-bar table and notice P5249159 is listed for 1.0 bars. I notice the box with my old bars in the corner and pull open the end tab. Looking at the end of the bars I see 458R and 459L. Now when I bought these, they were supposed to be .96 bars, but I never verified that, I just slid them in and that was that. So I grab my mic and check them and sure a [censored], they are 1.0 bars. There is still the paper wrap label on them and I can barely make out the "Made In Canada" text, but its there. Unfortunately, the part numbers are so dirty and worn I can't make those out.

So, for 27 years I thought these were something different. Hmm, go figure.

I have an old DC Kit Car catalog, so I checked it to see what part numbers are in there. Unfortunately the starting size in that program was 1.06 and its part number is P2948783. Looking on one of my older DC Chassis Manuals, no luck there. Since they tend to be drag race focused, they don't include larger bar numbers.

In any case, they install just like a stock t-bar. Nothing special required.

Re: Torsion bar ID help [Re: TC@HP2] #3075102
09/07/22 12:05 PM
09/07/22 12:05 PM
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Posts: 900
Washington
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hemienvy Offline OP
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hemienvy  Offline OP
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Washington
Thanks for the info ! Very interesting, fortunately not a crisis, just interesting.
I'm going to use them.
"P" parts come and go.

Re: Torsion bar ID help [Re: hemienvy] #3076286
09/11/22 12:43 PM
09/11/22 12:43 PM
Joined: Jan 2003
Posts: 27,444
So Cal
autoxcuda Offline
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So Cal
The 3-digit I’d in the end of those 458/459 is for 1.00”

Odd number on drivers side

Install like any other T-bar. Adjust ride height as necessary

Last edited by autoxcuda; 09/11/22 12:44 PM.
Re: Torsion bar ID help [Re: autoxcuda] #3077767
09/16/22 10:45 AM
09/16/22 10:45 AM
Joined: Sep 2006
Posts: 1,161
Los Angeles, CA
JF_Moparts Offline
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Los Angeles, CA
1" is a good street diameter. That's probably about a 190lb wheel rate, my estimate.







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