Quote:
Originally Posted by Scott ZHP
I've seen this quoted a number of times. Just curious where you're getting this figure.
Grade 8 3/4 SAE is good for a minimum of 50,000lb tensile strength. That's more than enough to yank a wheel bearing, IMO. In this application, I wouldn't use anything BUT a hardened grade 8 threaded rod/bolt (black oxide coated, not plated) from a reputable supplier (McMaster, Grainger, etc). Is your figure above for Gr5 or maybe Gr2?
I also grease the threads of the puller; helps tremendously.
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Considering what I went thru putting the hub assembly in my 20 ton shop press and watching the press bow up some I am not surprised the 3/4 bolt snapped. When they stick, THEY STICK.