View Full Version : Pullbar
06-06-2010, 07:54 PM
We are currently using the afco 3 stage pull bar and have tried it about 4 times and have taken it out. It seems to give good hook but it seems like it unloads so hard. We ran the 1200 pound spring. I have seen that Larry Shaw has a 700-2000 linear progressive spring. Has anyone tried this and would this be better than the biscuit bar? Also it is made by him or is it a hypercoil? Just looking for more forward bite.
06-07-2010, 07:32 AM
Have tried both biscuit and the AFCO 3 way and others. On the 3 way we had a 1050 or Shaw progressive. Liked both springs, use the progressive now.
Need to set the yellow biscuits to give you 1.5 to 2 inches of travel depending on track conditions.
Renegade Cust Susp
06-07-2010, 07:51 AM
Have been running the Shaw progressive spring and it works great, the way I understand it, it is made by hypercoil but the only place you can buy one is threw Shaw, I think it has way more feel and initial forward than the bisquit bars. JMO
06-07-2010, 08:16 AM
how do you set the bushings to give you that much travel i had mine backed all the way off and still only got 1-1/4 travel...........just took both yellow bis out and to right at 2 inches of travel with the 6-1200 spring????? just curious if im missing something here
06-07-2010, 08:47 AM
does it come in the correct length for the 3 stage? I think it need to be 6 5/8 inches according to afco.
06-07-2010, 09:52 AM
how much gap do you run in between the bushings on the 3 stage?
06-07-2010, 05:35 PM
I was told 1/2 inch of play til the bushings engage... And adjust wider if tires break loose and if track slicks off ur supposed to open it up too
06-07-2010, 07:44 PM
Good adjustment and maintenance guidelines here under tech... 4590 torque link
06-07-2010, 08:00 PM
how do I know if I have the 4590 or the 4700. They have different starting points. I think I have the 4700 and was thinking of starting with 11/16" gap.
06-07-2010, 11:44 PM
They all look basically the same to me, maybe different in lenghts... i like mine with right at 3/8 to 1" gap. I'm running less hp and shorter tracks than you though... where you losing traction? off corners or on straights?
06-08-2010, 07:08 AM
3/8 to 1". That seems like a fairly big difference considering they say 1/8 can make a difference. Also the 4590 and 4700 the 4700 seems to have the brake biscuit on the opposite side.
06-08-2010, 02:21 PM
Sneaky56 something does not seem right that you had to take out the biscuits to get that much travel. Look on the Right Foot Performance site or AFCO for their setup instructions. Maybe too long a spring or too much preload on the spring. We have been able to get up to 2.5in of travel, but usually stay around 2in or less without taking out the buiscuits.
06-08-2010, 08:13 PM
thanks for this thread! We are running a 1250 spring, and cant get anywhere near 2 inches of travel. Around 1 1/4 at most. But we also set the bar up according to afco's directions, and I think the gap between the biscuits and the adjuster is too small, around 3/8 like afco says. Might try moving it up to about 3/4 and see how that effects the car.
02-01-2011, 09:26 AM
Just wondering, we had been running one of the 3 way pullbars for the last year and had good bite. But wonder how much pinion angle do we need? we constantly look at pics and the rear of quick change to see that we are rubbing the bolt off. We routinely run almost 1 1/2 to 2 inches of rotation or pull. Just what can we do to reduce wearing off the nut on the back of rearend, and still get our forward bite?
02-07-2011, 10:34 AM
ran the 3 stage for the first time this weekend with the 1050. not in a mod, 3000 lb 3 link that runs a lot like a mod, on hossier dirt bozz. had a two way with a 675-1500 progressive in it before, looking for more forward off the corners so decided to try the "new greatest". track was a tad slimy but had decent traction but the rear tires just werent getting into the track, you could feel them buzzing the surface. had 1 1/4 travel in hot laps, backed the adjuster all the way off the bushings, only got 1 3/8 travel. yanked it out and put the 2 way with the prog back in for the mains, track had started to slick off a bit but the diff was huge. had 1 7/8, but still felt like i was lacking forward and i'd like to get the 3 way to work as i've heard if you can get initial bite, the bushings really drive hard. anyone had any luck with the eibach progressive in the 3 way or should i soften spring down to 700 or 800?
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