[Michael C Henry]

If you get the windshield side frame threaded holes repaired. The new full durable threads. that should be enough. Four 10-32 threads on each side (8 total). Better screws now than were available before. I like the coil thread replacement method. That Heli-Coil brand has been copied and is available under different brand names. Precision drilled and threaded makes better threads than original. The damaged original threaded hole is precision drilled with specified oversized drill bit and then taped with special tap. Then the coil is carefully installed, creating durable outer threads with the same thread count and fitting the specific screw. Removing the windshield side frames and using a drill press will create a better threaded hole. The repair kits come with a tap and coil installation tool and a few extra coils. there usually different drill bits for steel and aluminum, So they are usually bought separately. and the replacement thread coils can be bought separately. The coils come in different lengths and self-locking or not. I use a die grinder with a cutting disk to trim coils that are too long. Now a screw longer than you have threads, there is not any advantage. No more holding power and it will crack the windshield glass. I have used the coils in repairing machinery for the last 60 years. Oh, the coils are like coiled springs and actually have a tread profile in the coiled material. They have a hook formed in the stacked coil end, for screwing the coil into position Once installed, break that hook off / There is crimp to break that hook off I have gotten parts that were repaired using the coils. Problem was the previous worker did not break the hook off the coil I did not notice and when I installed my 3/8 NC bolts. the coil had been stretched, the tread did not match the bolt when the coil was stretched, and the bolt was threaded into the mismatched threads. The coil and the bolt were mangled. Screw the coil just near the edge of the hole and stop. If the coil is too long, there is nothing in the way you can just continue screwing coil through and cut the coil to the now known correct length and reinstall the now adjusted length coil. Break off the hook and cut the coil other end to flush and use that to adjust the other coil before trying to install them. The coils should be just a small fraction shorter than the material being install ed in. I've been doing this for so long it doesn't seem that difficult. Remember to break the little curl off once you are done.