Quote:
Originally Posted by firefighter*17
Hi every one! First post here, I have a 1969 chevy pickup 3/4 ton 4x4 stock 350 with a 4 speed manual tranny. The pickup either breaks the 4x4 warn hub or loosens up the hub bolts or breaks the bolts. Anyone come across this before? I use the truck to plow snow and I don't chain up the tires. The first time it happened I put high grade bolts back in, thread lock and torqued them down. Half hour into first snow storm I hear popping sound get out and look all bolts are loose and some missing. I replace, retighten and thread lock. I get back to plowing and same thing happens accept the hub breaks. I'm lost on this one and could use your advise.
Thanks!
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Those old external hubs commonly have that problem. It would be worst when you are using 4WD and doing a lot of backing up under power as you are when plowing. Some people have used studs instead of the bolts with some success. The real solution it to swap in a later mode front axle that has the (smaller) internal hubs - that will solve the problem permanently.