Maniac Posted May 31, 2009 Report Share Posted May 31, 2009 I recently ordered Hawk pads and SSBC rotors from Summit Racing for my 2003 Silverado SS. The front and rear pads are the wrong size. Summit says for the fronts are Super Duty HB322P.717 and the rears are Super Duty HB324P.673. As you can see in the picture below the fronts they provided are too big and the rears are too small. If you go on Hawks website they say the fronts should be HB323P.724 and and the rears the provide the same part number as Summit. I'm going to call Hawk on Monday to confirm but wanted to see if ayone of you guys have run into this problem or know the correct part numbers. Anyone know what is the correct pad part numbers for a 2003 Silverado SS manufacture date 02/03? Quote Link to comment Share on other sites More sharing options...
Fireman31 Posted May 31, 2009 Report Share Posted May 31, 2009 I don't know why they are selling you standard Hawk ceramic pads, you want the Hawk HPS carbon-ferro ceramic pads that are better suited for spirited driving. The proper part numbers(as I know them) are.... Front - HB323F.724 Rear - HB324F.673 Quote Link to comment Share on other sites More sharing options...
Bear Posted May 31, 2009 Report Share Posted May 31, 2009 The part numbers I have are: Front Pads HB323F.724 Hawk Performance Brake Pads - HPS HB323Z.734 – Ceramic Rear Pads HB385F.640 Hawk Performance Brake Pads - HPS HB385Z.640 - Ceramic The 324 part number is for the back on 1500 GMC and Chevy trucks with single piston rear calipers and 19mm thick rotors, where as we have the 28mm thick rear rotors. Quote Link to comment Share on other sites More sharing options...
Maniac Posted June 1, 2009 Author Report Share Posted June 1, 2009 Well I called up Hawk today and apparently they don't recommend the HP SuperDuty pads for my truck unless I am constantly towing they said otherwise they will squeel a lot. They said the correct pads are HB323Y.724 for the front and HB385Y.640. Called Summit they are sending the correct pads via overnight so hopefully they are the correct ones. The Y compound pads are in Hawks opinion a better pad than the standard HPS pads for a heavy vehicle like a Silverado SS. Quote Link to comment Share on other sites More sharing options...
5752 Posted July 13, 2009 Report Share Posted July 13, 2009 Well I called up Hawk today and apparently they don't recommend the HP SuperDuty pads for my truck unless I am constantly towing they said otherwise they will squeel a lot. They said the correct pads are HB323Y.724 for the front and HB385Y.640. Called Summit they are sending the correct pads via overnight so hopefully they are the correct ones. The Y compound pads are in Hawks opinion a better pad than the standard HPS pads for a heavy vehicle like a Silverado SS. How are the Hawk LTS: HWK HB323Y.724 {front} & HWK HB385Y.640 {rear} working for you? Quote Link to comment Share on other sites More sharing options...
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