i am installing a new set of body bushing's. only to discover the frame where the bushing's rest are rusted away. i got new plates from classic industries the question is. where do i find the measurement's for the plates. as im sure the holes need to be in the correct place plaes help.

darewood,

I'm sure someone will pop in with the answer but the Factory Assembly Manual has a picture of the measurments from several points around the subframe.
I saw the picture posted here a long time ago also.
I don't have my assembly manual handy or I'd shoot you a picture of it.

When I did mine I was able to first place a bushing on the plate, loosely bolt in in place to align everything and tack it in place.

That's what I'm going to do also Rick. There is enough play in the solid bushings bolt hole to move the whole frame around if need be afterwards. It's gonna be a big pain but then they'll be in the right spots.

The holes in my subframe at the firewall mount points were pretty bad. The alignment hole was still intact so, I installed the plates to the rear of the frame to add support and then mounted the rear to the body. Using the alignment holes, I was able to place the plate on the frame, check frame to body measurements for equality and checked from rear spring perch to opposite front corners for squareness test fitted the new bushing and bolt, clamped the plate on, removed the bushing, tacked the plate on, removed the rear bolts, lowered the frame and completed the welding. I mounted them on the underside of the frame. It can be a long process but it will as close to if not better than the factory. On the front snouts I ground the sides of the plates and welded them inside the subframe. Take your time and you will be very happy with the results. Good Luck

thank you for all the answer's. i did just what you said and bolted them lightley in place and tacked them in. went relatively easy except for the cage nut's that seem to tear up the cage. so i removed the cage and square nut with a torch and i was done. also i didnt haft to drop the steering knuckle. as i managed to get enough room from puttin the rear end on jack stands and then jacking up the body.