Well fellas.... the plan was to change the opti on my 93 LT1 formula.....I removed all the stuff, water pump, radiator etc.... got to the harmonic balancer and the pulley was stuck after I took off the bolts,.... I have a "mechanic" that could get the pulley off for me... or so he said.... he used a harmonic balancer puller to seperate the balancer enough from the block to remove the opti and swap it out with the new one... problem is when it got pulled it pulled the whole hub... balancer and all.... now the problem I have is pressing it back to the block and a regular harmonic balancer installer won't work, any ideas on how to get it pressed back in with that pulley still attached?? All help is appreciated

 

High grade threaded rod, nut and washers will press it back on (same principle as an install tool). It doesn't matter if the pulley is on or not.

 

What size rod and nut would it take?

 

7/16-20 thread like the crank hub bolt.