wannabeturbo

I have a 5.3 (unsure of the year) and I ordered what I thought were ls1 corvette accessories but nothing is lining up right and it keeps throwing belts on start. The crank pulley I ordered from summit for a 2000 corvette, the alternator bracket I got off ebay for a ls1 corvette, the alternator I also got off ebay for a corvette as the water pump. The tensioner is off of a 97 c5 corvette.
The crank pulley is installed to spec .96-.176. The belt is a 75" 6 rib belt and sits between the 2 marks on the tensioner. As soon as I start the car it jumps a rib on the crank pulley... I have already tried two tensioners. Here are some photos. Any ideas?

wannabeturbo

Bump no one has an idea

johnson73801

iTrader: (3)

looks like the alternator and the tensioner are back farther then everything else...... mayne about the thickness of a washer..... that being said you could try shimming behind the accessory bracket and the the tensioner and remeasure or put the belt on and try it... last gates does make an alignment tool that has a laser in it but not everyone wants to buy one if they only gonna use it once.