radius arm frame mounts???

[kevoson]

got the front end all torn down and ready to cut the old brackets off. but as i was measuring i noticed that the old brackets are off at least from the point i measured from. theres a set of holes in the frame so I used them as reference points. On the driver side i got 7 1/8 and passenger side I'm getting 6 3/4. I'm guessing the P.O was off but Thought i read somewhere that these bronco frames were off a 1/4 inch somewhere.

[DirtDonk]

Re: radius arm frame mounts???

How does that compare with another known point, such as the center of the coil spring towers?
They can definitely be off, but I don't know if the holes you're using are any more consistent than the mounts themselves. Mine were "bent" in different directions too, so were off even in angle. Almost looked like a PO had backed over a big rock and pushed the passenger side forward a half-inch or so. But no gouging or other damage is apparent, so it could have been off right from the factory.
Hmm, maybe it was bent to fix a case of the Bronco-leans? Ya just never know with these things.

[Efibroncoman]

Re: radius arm frame mounts???

Gotta love that 60's technology... They used a yard stick when built the frames for these broncos!

[Henry66]

Re: radius arm frame mounts???

Gotta love that 60's technology... They used a yard stick when built the frames for these broncos!

And I think they were all wearing straw hats.

[kevoson]

Re: radius arm frame mounts???

I took a measurements from the radius arm mount to the center of the rear leaf spring bolt and go 23 3/4 on the passenger side and 23 3/8 on the driver

[GREMLIN]

Re: radius arm frame mounts???

mine was off the same way. i used the front spring bolt on rear as a ref. point.

[TBS-POPS]

Re: radius arm frame mounts???

WE had heard about this too so we made sure Justins frame was square then just used the frame ends as reference points.

Yeah his was about a 1/4" off

[kevoson]

Re: radius arm frame mounts???

Ok. I just didn't want to over measure and find out that its supposed to be that way an have a bronco that cab walks.

[Spaceburger]

Re: radius arm frame mounts???

I bought the extended mounts from Tom's and they located on that frame hole. So even after welding they looked off but after mounting the axles I measured the parallels and both axles were within less than a 1/16 in parallel to each other. So while they looked off they turned out fine.

[Henry66]

Re: radius arm frame mounts???

I bought the extended mounts from Tom's and they located on that frame hole. So even after welding they looked off but after mounting the axles I measured the parallels and both axles were within less than a 1/16 in parallel to each other. So while they looked off they turned out fine.

With curiosity taking over and a bare frame and tape measure at hand I checked the hypotenuse of the frame. 154 inches exactly both points. So, since the frame is square we can be sure it was not made on a Friday. Also checked various other points and all match. Surprised to note that the width in the front is less than the width in the back. Then I noticed that the frame rail box tapers down just behind the front cross brace.