So I need new spring bushings. I have the rear shackle bushings, just going with Moog, but it seems there are a few choices for the front eye. Best I can tell I have a 1.5" bushing with a 1/2" bolt. Does that sound right for my 71 Demon? Kind of hard to get good measurement while its still in and I don't like taking things apart unless I have the new part. Can anyone make a recommendation (rubber, poly) maybe a brand and part number? I dunno if this makes a difference but it originally had a 6 in it.