I am in the middle of building my 1926 modelt roadster pickup and have put a banjo rear with the original 35 wishbones and rear spring but have heard i should run a third link or torq arm. Where should this arm mount? I planned on making a bracket that bolts the the axle where the bells bolt to the center section and then running the third link either to a crossmember i would mount in the kickup of the frame or to the x- member of the frame but then it would interfere with my floor. does anyone have pictures or input on what to do?
Elpolacko has pictures on a picture hosting site, look up his name and then look at his signature. mine is overkill but maybe it will give you some ideas. lets see if this picture from his site will work:
glen- Thanks for the pics im guessing yours is mounted solid at the rear and pivots at the front? here is the link to my build thread with pictures for reference: http://www.jalopyjournal.com/forum/showthread.php?t=419312
correct solid mount at the axle and you need the pivot point at the front. It will be easy to make a nice mount on the banjo rear end....I looked at your pictures, that dog bone link at the front should be as close as possible to the u-joint at the transmission. here is a link to that album: http://s206.photobucket.com/albums/bb93/ELpolacko/1927 Ford Coupe MAC/
Go with a torque arm. Mount the front pivot as close as you can to the front U joint, or barring that, mount it along the centerline of the driveshaft to avoid excessive slip yoke travel. Connect the wishbones to the front of the torque arm so that it's all one unit, like they were with the torque tube.
check out the one that Hot Rod Works sells. should be easy to copy too http://www.hotrodworks.com/ http://www.hotrodworks.com/shopdisplayproducts.asp@id=12&cat=Chassis.html
36-3 window- thanks for the links the pictures of the torq arm help alot but it looks as though theres is just mounted with heim joints fron and rear and it has no pivot point. I dont really see the reason to have an actual pivot point as long as there are heim joints but is there any advantage to either setup?
I would think that the torgue arm with a hiem end (fixed position) should be mounted as close to the wishbone mounts as possible. That gives both the same arc when moving. If the torque arm is longer than the bones the arc would be different and cause binding. GM's torque arm that mounts close to the front driveshaft joint does not have a fixed mount. It is allowed to slide front to back not binding. Clark
The one pictured from Hot Rod Works is really just a top link, not a torque arm. As Clark posted above, the torque arm must be the same length as the wishbones, or they must be attached to the arm. Because the wishbone arms are fixed to the axle, they will try to control pinion angle as the axle moves up and down. So will the torque arm if it is fixed to the side bell. Even a shackle or dog bone at the front won't solve that problem. If you run lower links (pivots at both ends) instead of the wishbones, then only the torque arm is holding the pinion angle, and there is no bind. You still need the shackle if the lower links are shorter than the torque arm. In the pic Glen posted up top, you can see that the lower links are much shorter, but the shackle on the front allows the axle to move in their arc not the longer arc of the torque arm.
I missed the link at the front of Glen's torgue arm...good idea. Travis..try searching "torque+arm" You'll find a lot of good ideas. Clark
Here's a post that may help... http://www.jalopyjournal.com/forum/showthread.php?t=297391&highlight=torque+arm Neal
Thanks for the input guys i think i know what im going to do now, but more ideas and pictures are welcome
I'm building a torque arm rear for my O/T 51 Ply "Vintage Viper". I should be taking some update pics this week. I'll post a couple if you like...
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