chvet73

I was installing my rear caliper on my '73. One bolt stripped out while setting the correct torque.
Has anyone dealt with this repair?

Could I do a helicoil? The surrounding area looks thin for the hole size an appropriate helicoil would need.
Can you fill the hole with mig or tig weld and re-tap?

Or am I stuck getting into the spindle to replace the bracket. These trailing arms have no more than 8000 miles on them since a complete rebuild.

So I'm open to any suggestion.

Thanks for your help in advance

69small block

its a 7/16 bolt you can tap it out to 1/2 just use fine thread worked for me you might have to make custom length bolt

fogaley

There are some metric bolts that are just a little oversize from US threads and will work for a tap out to the next size without going to a 1/2" US bolt. Scptt

doorgunner

As a last resort, you can remove the bad threads with a slightly larger drill (bit).....then have someone press a threaded plug/sleeve into the clean hole-----mig or tig both ends into the hole....chase the threads of the new plug with the correct size tap after the weld has cooled off....add a bit of antiseize to the new bolt threads before installing it to prevent stripping.

Kfmorgan

I have a '73 also. I stripped the drivers side rear while replacing the caliper, same as you.
I used a heli-coil, and have had no problems since. I have had the caliper of a couple of times since, and have had no problems retorqueing it.
Good Luck

Kfmorgan

I should also add, that you will have to trim, and smooth the heli-coil a bit after installing it.
A lot easier than welding and tapping.
Again, Good Luck.