oohh I did that with my pulleys and let me tell you my experiences. I WILL NOT do bus with Thunderbolt again. JMHO but all I got was rudeness and hassles from them. As an example they said they would email me with a conformation num from fedex. I assumed it would be done that day or possibly the next. I never got one. Instead all I got was the runaround about when they would be shipped. FYI They only ship Steeda parts every other Monday. so it could be up to 2 weeks before you get them. Are they cheaper? Yes but only by about $5 than other places (+shipping) I needed them for a track meet with a bunch of friends and thought I ordered them in plenty of time....yeah right. Like I said that is solely my opinion for what its worth.
1989 LX mustang PAXTON NOVI 1000 6lbs, FMU 19lb injectors, MAC longtube headers, BBK midpipe, Flowmaster mufflers dumped, 373 gears