the rollers are not pulleys,they are just that rollers,about the size of a 3/4 socket with a bearing in the middle there are 2 of them up on the top end between the cam and inj pump pulleys.most places don't replace em. and if your serious about it get a vag-com cable and download the free software and you can do lots of stuff the obdII scanner couldn't dream of,you'll need it to check the timing for one.mine is currently setting at 426,000 miles.original clutch went at 375,000.