Torsion bars

[old guys rule]

Read somewhere that they have a left and right bias. Is that true?

 

[steve340]

I think they call it clocking - and yes there is a RH and LH bar.

 

[Big D A12]

They have left and right part numbers. Don't know why they would do this if there was not a bias....

 

[dadsbee]

Yes they are clocked left and right. OE bars are marked so (L and R) and odd part number is left.. even is right..

 

[old guys rule]

Thanks, tell the truth I've never changed a pair in 52 yrs of playing with these things.

 

[dadsbee]

I've been looking for a picture... but I'm pretty sure I have that correct with odd number is left(driver) and even is right side. Also a L and R on them.

 

[Big D A12]

Here you go. Part number end and date code end...sorry for the upside down....

D

 

[Robert Schaad]

I've been looking for a picture... but I'm pretty sure I have that correct with odd number is left(driver) and even is right side. Also a L and R on them.

I have removed and replaced and i found an L & R on the end. I can only use common since in that if one was torquing one way for so many years and you put it in the other side, that would cause so much stress in the opposite direction and weaken and possible break it. Good luck.

 

[Big D A12]

Part number faces back, date code goes in the LCA.

D

 

[DeltaV]

Nice write-up/explanation:

http://arengineering.com/tech/torsion-bar-tango/

 

[old guys rule]

Is clocking done on install or adjusting ride height or both? I'll do that

 

[westie47]

Here you go. Part number end and date code end...sorry for the upside down....

D

View attachment 925426 View attachment 925427

Sorry, I'm confused, which is the part number and which is the date code? I am close to re-installing mine as well.

 

[Big D A12]

780/781 above are the part numbers. Even numbers on the right side, odd on the left. Date codes (179) above are the 17th week of 1969.

Hope this helps?

D

 

[westie47]

780/781 above are the part numbers. Even numbers on the right side, odd on the left. Date codes (179) above are the 17th week of 1969.

Hope this helps?

D

Perfect, thanks!

 

[old guys rule]

Is clocking done on install or height adjustment or both?

 

[Kern Dog]

Is clocking done on install or height adjustment or both?

"Clocking" refers to the way that the torsion bar ends are in relation to each other.
Call it a "twist" if you will. It is nothing the installer does, it is how the bar is made.

 

[old guys rule]

"Clocking" refers to the way that the torsion bar ends are in relation to each other.
Call it a "twist" if you will. It is nothing the installer does, it is how the bar is made.

Thanks for the info. Appreciate it.

 

[Snook]

I had one break (drivers side) while parked in the driveway. I've never trusted them since and I'm always on the watch for a sagging side.

snook

 

[super-bee_ski]

In DeltaVs post, a great article but it truly does not cover "Installation" as it states: "Installation"
So:
My question is, My drivers side the LCA "HEX" just doesn't seem to line up sufficiently with my Bar...is there a way to make the LCA "HEX" socket go more counter-clockwise OR am I to simply pound the bar back in to place?
As I attempted a few times and the LCA HEX was not quite aligned, and I had to file off a Burr on 2 or 3 sides of the HEX...
Ya know?
I did the install a few years ago, no problem...
signed..
Truly getting tired of all the failed attempts...

 

[steve340]

My car broke a torsion bar and it all got out of alignment due to the rapid drop of the car.
I loosened the nut on the LCA pin and used the old torsion bar to "twist" it until it lined up.
Put the weight back on the suspension and re-tightened the nut.
Do not try hammering in the torsion bar.