Frame measurement needed

[Jeff Balazs]

Hi Guy's

We are working on repairing my bent 52 B-3-C frame and need a reference measurement that does not seem to appear on any drawings.

What we are after is an outside of frame to outside of frame dimension at the centerline of the rear engine mounts.

If anyone is in a position to check this dimension for us it would be greatly appreciated.

Thanks very much.

Jeff

[Dave72dt]

The frame has a bend point just in front of the front rear spring hanger, parrallel behind that point. After that the rails are dead on straight, pinching in at the front. If your centerline is correct at the front, you should be able to pull diagonals anywhere along the frame and since you have a bellhousing and mounts you should be able to get a dimension from that also.

[Jeff Balazs]

Hi Dave;

Yes ..... and my frame has a few bends in it that don't belong there as well. We are getting it though. It is a lot better than it was and we still need to do a couple more sessions on it.

My truck took a really big hit on the drivers side just aft of the bellhousing / motor mount assembly. Right now we are concentrating on the area just behind the steering box as there is some twist and deflection that doesn't belong there. The motor mounts were bent and we have fixed them. I could reassemble it and take a measurement for the inside to inside frame dimension but I don't feel that I could be certain that it will be absolutely correct. I would really like to have a reference dimension at this location from someone who has a straight frame.

The entire tail end which should be parallel and square is skewed to the drivers side. We will have to cut the welds on top of the rear cross members and torque the rear around to correct this. Once everything has been trued up and straightened Jon will reinforce it properly and then put the Grand Cherokee axle in.

Jeff

[Barry Maxwell]

I have a '51 B3C frame on jackstands with the rear engine mount brackets attached. The measurement you are looking for the outside of the rails is 33-1/16". I assume that a '51 frame is the same as a '53, but I am not sure of that. Hope this helps.

[Jeff Balazs]

Barry;

Thank you that is great. 51 & 52 should be the same.....even better yours is a 3/4 ton too.

Jeff