Two Link Traction Rods

[molitor]

These are similar to 4 link systems, except!. . . they fasten to the tail end of the frame at the rear of the bed. I came up with this idea sitting at my computer pouring over countless how-to's on homemade cal-traks. They all look nice, but they dont help transfer weight like they should. So i came up with an idea to link the rear of the frame to the bottom of the axle so that when the axle tried to rotate up (i.e. a really good launch), all of the rotating force will be applied to the rear end of the truck pulling it down and dumping a whole lot of weight in the back end. I'm not a suspension expert so this could be completely useless. But if nothing else, it will be fun to try. I'll be using 4-5/8'' teflon lined male shanked rod ends, one left hand, and one right hand so that the system will be adjustable. The bars will be made from 3/4''x.100''wall round tubing(chromemoly of course). The brackets will be made from 1/4'' steel plate. and all fasteners will be Grade 8 or better. In my opinion, if a grade five did just fine for 20 yrs, exchange it for a grade 8 and forget it forever.

here is my first draft initial drawing which was composed 06/24/2009 at 8:02 p.m..

[DBRODS]

Sorry to rain on your idea but this will do absoutely nothing. They reason why is cause the rear of the leafspring pivots on the shackle. So connecting to the rear section of the frame with the traction bar still allows the axle to pivot and you still have the front section of the spring that flexes....Theres alot more to it but that sums it up..

[sprayedenali]

Sorry to rain on your idea but this will do absoutely nothing. They reason why is cause the rear of the leafspring pivots on the shackle. So connecting to the rear section of the frame with the traction bar still allows the axle to pivot and you still have the front section of the spring that flexes....Theres alot more to it but that sums it up..

so those rods would just make it pivot on a different axis?

...just trying to understand...

[Frenchy]

backwards longbars? But by the picture it shows the wheel spinning clockwise, which would put the bars in front of the axle, but the shackle and step in the frame make it look backwards. I'm lost anyway

[sprayedenali]

i was wrong

[molitor]

the axle is shown rotating up torward the front of the bed, the frame sketch isn't that accurate. . . at all, so dont let that throw you off. i'm pretty sure this idea will work despite the location of the shackle, the point is not to modiy the leaf spring flex in any way, i'm only applying an opposing force to the twisting force caused by the pinion climbing under high torque


the semicircular rotation path that is drawn is the axle housing and not the wheel's rotation, the wheel will be rotating counterclockwise in forward motion, the left side is the front, and the right side of the drawing is the rear.

[DBRODS]

the axle is shown rotating up torward the front of the bed, the frame sketch isn't that accurate. . . at all, so dont let that throw you off. i'm pretty sure this idea will work despite the location of the shackle, the point is not to modiy the leaf spring flex in any way, i'm only applying an opposing force to the twisting force caused by the pinion climbing under high torque

The pinion will still climb with the way this is, the only way to stop it is if the traction bar is on the front side of the leafpack. Also if this would work it would have been done a long time ago....

[SLO TRUCK]

that is a sweet arse looking record player

[molitor]

its called a phonograph man

[molitor]

think think the set up is worth a try, i've never even seen it attempted, many times, things like this just don't work in theory. but i think the setup is sound if it's adjusted right