My thing is they dont work like a traditional set of traction bars.

 

Try them. I was told longer is better, but anything that will hold your axle out of hop is what most pullers need. I have seen 60 inch bars let the wheels hop on black dirt but there isn't much that will help on that.

 

I thought about a set of these once I get the my Dana 80 bolted under my 2nd gen......

 

On a traditional bar setup longer is better, The caltracs use a differnet design, something about the pyhsics of it... Just saying what teh guys at Caltrac said...

 

I run a set of homemade Caltracs on a 340 Plymouth 1/4 mile car and they are the best mod I ever made to that car. The thing hooks like the rear tires are glued to the pavement. Here's the deal, don't be fooled by the first pic of an old slapper bar:

Traction

I almost put a set on the 1st Gen but decided to try something different, just for the hell of it. If anyone has any actual reasons besides "I heard..." or their "opinion," let's hear it. They are an excellent, effective means of controlling axle wrap in a leaf spring rear suspension. Better by far than 90+% of the bolt on solid I-don't-care-how-long-they-are POS bars I see on alot of trucks.

 

Also my basic knowledge of physics (high school) leads me to believe that a long set of trditional style bars will lift the front end of teh truck. In pulling this is something you do not want.