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the 4 bolts tha hold the rear spring to the diff, what grade should they be?
the ones i removed were 3 dash meaning grade 5,
but reading on net people say use grade 8...
i'm confused....
as i'm putting a new spring on to replace my saggy one, the bolts need to be slightly longer as the spring is slightly thicker thru the middle.
GM used grade 5, if you're worried, use 8's. Most important thing is to not bottom the bolt in the blind holes and crack the cover. Measure that twice!
GM used grade 5, if you're worried, use 8's. Most important thing is to not bottom the bolt in the blind holes and crack the cover. Measure that twice!
For sure. I looked at mine and two of them have extra washers. However with a fiberglass spring and an extra strength rear cover, your results may vary.. Just be careful.