Quote:
Originally Posted by 427fast
My backdraft #990 rear differential 14mm bolt keeps getting loose and breaking when I race. I am a drag racer and after about three passes I have to bring it back and tighten the bolts that support the rear end. I have broke it and luckily been able to use a point chisel and remove it. I am using a grade 8 bolt and lock washer and nothing helps. I need some way to keep this tight. I don't want to use lock tite cause if it breaks I will never get it out. Please help me.
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Using a Grade 8 or a Grade 5 I would do the following as this is what I have done on my car after breaking multiple bolts.
Drill bolt head for safetywire and drill a pilot hole into the last 1/2" of the bolt.
Put bolt in with a little (not much at all) anti-seize and then safetywire bolthead. Bolt will NOT backout due to safetywire and if bolt snaps you can pull the shank out the backend of the diff using an easyout.
Kevin.....