well i just put a brand new 22r in my 87 and the oil pump pretty much granaded. attarco, the company i bought the motor from gave me a brand new oil pump and seal kit and i cant get the oil pump drive gear off... tried pulling it off with vice grips tried hitting it with a hammer and cold chisel since it has stripped teeth and is pretty much worthless... soaked it in pb blaster overnight and still nothing... any input will be helpful