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Author Topic:   pull bar and torque arm
driver27
Dirt Maniac

Total posts: 198
posted December 02, 2005 02:02 PM  
Im going to fab up the brackets and such to try the pullbar and torque arm setup with the brake chain only. Im assuming the front of the torque arm needs a lateral locating device? If you mount the torue arm with solid mounts to the rear end (ie., no heims)do you need the lateral mounting set of heims? Or, must you use heims in your mounts to the rear end?
Id love to see a pic if anyone has one.


Thanks

nwarkracefan
Dirt Roller

Total posts: 20
posted December 02, 2005 02:15 PM  
We just installed a lift bar/chain setup on one of our cars the weekend before last.

I would recomend that you attach it to the rear end with heims. Makes it easy to adjust chain tension, etc.

For a lateral bracing device you can use just about anything. We used a swedge tube from the rear end to a spot up on the side of the lift bar.


rocket36
Dirt Freak

Total posts: 231
posted December 02, 2005 02:50 PM  
you really should mount the lift arm from the rear end using heims and then put a lateral locating device of some sort on it. it is probably better to locate it to the frame & lift arm just behind the shortest 5th coil mount with a simple radius arm with heims. this helps keep the 5th coil as straight up and down as possible during the sometimes radical rear end movements that most 4-bar & swing arm cars make

[This message has been edited by rocket36 (edited December 02, 2005).]

CLBaker25
Dirt Freak

Total posts: 212
posted December 02, 2005 03:42 PM  
What are the advantages and disadvantages of a pullbar -vs- a torque arm?

JT54
Dirt Maniac

Total posts: 174
posted December 02, 2005 04:27 PM  
also make sure if you use the radius arm method to locate it ,make sure the arm is not to short....I had this problem and it was driving me nuts for a couple of weeks trying to figure out why the car would suddunly snapp loose at mid steight away...

wfoondirt
Dirt Forum Champ
Total posts: 520
posted December 02, 2005 08:28 PM  
If your only using the 5th arm for a brake chain you could probably get away with solid mounts on the rear end and no lateral locating bracket.

If you do decide to brace it, the way rocket36 described is about the best way. That way the fifth arm stays straight in the car and I think you can say a little weight over bracing it back to the rearend.

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