Wondering if anyone knows how or even if I can tell what rear end is in my car just by looking? Do I have to take the diff girdle off? The car was originally a 4 cyl now sporting a carbed 302. When I asked what rear was in it the guy said a 9" but this guy was a bit of a shyster so I dont believe him. He said that there were Flowmaster muff's but in fact they are Dynomax so I wouldnt say he is very credible. I've already picked up 31 spline axles and 3:55's for an 8.8. Anyone??