ARCS twin stick rear brakes??
I was noticing that by the last round of the ARCA series, most of the top teams had the dual rear hand brake systems installed. The setup can be seen on the new Currie jeep that was at the SEMA show.
I'm trying to figure out how this is set up and used. It looks simply like two ebrake levers, but I doubt the mechanical setup is that simple. They seem to be using it to allow the vehicle to turn more sharply by pivoting on one of the rear wheels locked up. Assuming they are using detroit lockers, would the rear end differentiate in this situation?
One article seemed to suggest that what they are doing is locking one of the rear wheels, then using fwd and spinning the fronts to pivot the rear around the locked wheel. I'm having trouble seeing this working in my mind.
Perhaps someone who has seen these setups in action can explain what they are doing with them.
You would lock the rear wheel on the INSIDE of the turn, correct?
Also, is it necessary to SPIN the front wheels, or will simply driving forward in fwd, rear wheel locked, and the wheels cranked in the direction of the turn dramatically decrease the turning radius?
The reason why I ask this is that I am in the middle of swapping in an NP435 and EBD20 into my YJ. The Dana 20 has fwd capability if I remove an interlock pin. I wasn't going to do this because while I could see the advantage to 2wdLo, until I started hearing about this I couldn't see the need on a consistent basis for fwd.
I do a lot of rock crawling and decreasing turning radius would be a great benefit, but I am concerned that the technique used to achieve this not be too hard on my drive train (4.0, NP435, D20, D44s, detroits, 4.88, 35 SXs).
Oh yeah, I was also just about to install a hand ebrake.... wouldn't be a big deal to install 2 instead of 1!
The currie jeep, of course, uses some really trick levers and actuating mechanism to achieve this..... is there any reason why it would not be possible to achieve the same effect simply by installing twin hand brake levers, one hooked to the ebrake cable from each side of the rear axle?
In other words, is the trick currie setup doing anything besides being trick that I can't reproduce in a less 'unobtanium' way?
Thanks for any input.