Hey...hi. My oil pressure sending unit leaks and needs removed. It has a plastic collar that a normal wrench does not fit. It looks like it requires a special socket (worth more than the sensor itself)....Has anybody have any tricks up their sleeve for safe removal by other means....vice grips and a hammer as an example??. I don't want to strip the threads in the block or snap the unit into two pieces. I tried various sealants to seal the leak, but with no success. No mechanics that I have contacted had the proper socket......they all just say "bring it in, we'll take a look at it"....yeah, I've already looked at it, and I didn't charge myself $90.00 per hour! Any tips at all would be appreciated. Thank you......and, do I have to remove the radiator?