Crank Bolt
 

what size is the center bolt in the crank pulley. i feel like i cant find a socket that even comes close to fitting. and its starting to frustrate me:willy:

Oh sorry, 92 lt1

I don't know if this will help but my 1985 uses a 5/8" standard for the crank bolt. See it a 5/8 will fit snug.

yeah it was 5/8 thanks. do you have any other pointers for removing the hub, there isnt much room so im assuming there is some tricks

I ws thinkin those might be metric

You can get a three bolt puller in there. I had to cut 1” off the center bolt of my puller. Only have about 4 ½”- 5” to work in on my 89 coupe.

In case you dont know, the LT1 pulley is not like the old SBC balancer. Its 2 parts bolted together. It does not pull off quite the same either.

Why do you want to pull the hub????

Or are you just trying to get the balancer off for an opti change?
For an opti change you just have to remove the 3 bolts holding the balancer on the hub and get the balancer off the hub.