rear wishbone mounts

I recently fab'd some rear wishbones for my dad's Model A Coupe. I had a full set of 40s wishbones, So I took the rear bones and cut off the brackets and welded them to the front pair of bones with some tie rods for the back. They will be going on a daily driver with with a low power motor. There was plenty of movement and no binding. I looked over everything and there were no cracks and excellent penetration on the welds. So i just wanna hear some opinions and/or past experience with this type of setup. Thanks guys...

 

It should work OK on an open drive shaft. If you use the torque tube, it will bind because of two arcs.

 

yeah were gonna convert it to an open drive shaft.

 

It would work better if you mount them close to the original location to maintain the triangle geometrylike this...


If you use an open driveshaft you will need to install a torque arm like this...

 

Yes, needs something for the torque. Search Torque arm, we have discussed them a ton over the years.

 

The origonal rear wishbones were thin and not as strong as the fronts. Using the fronts in the rear the axle bracket is now the weak link. You need to do as others suggest and mount them close together, say 8-10 inches. You will also need a torque arm mounted to the top of the rear end and foreward mounted as close to if not in the same area as the lower arms. The torque arm is needed to stop the rear end twist.

 

thanks for all the info! time to do some homework

 

I had a set-up like that on an old coupe with open drive shaft and they kept cracking at the rear welds.. I finally switch to a 'Pete and Jakes' style.......