911 frame question
 

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You need the basic unibody clamps and it would be best to attach to some known points. For a frontal pull, the rear suspsension torsion cover holes are used on some machines if you have fixtures. Same with engine mount holes and rear shock towers, all of which are hard to access w/o the engine, trans and suspension off the car. There is a data line under the car (center line) with little rubber inserts in the holes. And, the factory service manual has a blueprint of all the reference points. This diagram has been posted here many times and i probably available in the tech articles section accessed from the main 911 parts page in the left column.

So, for a car still with all the running gear and rear suspension, I'd clamp as much of the longintudial pinch seam/weld at the base of the rockers as possible, remove the front suspension and damaged fender(s) and hook up where you need to.

Bear in mind that the inner frame horn parts, as well as the nose, battery support tray and front suspension pan are all available new at Stoddards Porsche. The inner fender will have to come off a parts yard car and the fenders and hood are best bought used.

Sometimes these things are availble here in the parts for sale forum. Most metal on the car is 1mm, or 18 ga. Some inner parts are 20 ga., if you need to make anything. It is galvy, so watch yourself welding.

Short of coming out to TX and doing the work, that's the best I can do for you right now. ;)