Oreo931 Posted June 16, 2009 Report Share Posted June 16, 2009 I have been doing a lot of research about the front big brake kit calipers that will fit the 850/x70s, and since there is a lot of misinformation out there I thought a thread with solid answers and part numbers would be helpful. There is some stuff I am unsure about so if anyone has info please post it. Also, if you know of any other calipers that will work please post that as well. Porsche 993TT calipers (also known as "big reds") The part numbers for the front calipers are: 993-351-425-10 (left side) 993-351-426-10 (right side) 36mm/44mm piston sizes Note: The 993N/A calipers WILL NOT WORK. They will not accept the larger sized brake rotor. Porsche 928GTS calipers (also known as "big blacks") The part numbers for the front calipers are: 928-351-423-03 (left side) 928-351-424-03 (right side) 36mm/44mm piston sizes (if you want to use these you will need to swap the bleeder screws & cross-over tubes - very simple) The 928 non-GTS calipers below WILL NOT FIT!! (Thanks Gary) M030 calipers (928 S4 calipers) (also used on 944 S2 M030, 944 Turbo S) 928-351-421-03 928-351-422-03 36mm/44mm piston sizes The 993TT and 928GTS calipers will mount with IPD brackets, and will work with S60R rotors as well. The two calipers look very similar to each other. Depending on what wheel you are running, they might require spacers. Porsche 996TT calipers The part numbers for the front calipers are: 996-351-429-10 (left side) 996-351-430-10 (right side) These calipers are significantly thicker than the 993TT and 928GTS calipers, so you will have to use a larger spacer to run them. I am unsure if the IPD brackets will work with these, and I am unsure about the rotor size. I'm not sure about 996 non-TT calipers. I know Brembo f-40 and f-50 calipers will fit. There are a few members running those. I don't know any specific info about them though. 6 2 Quote Link to comment Share on other sites More sharing options...
Yellow95 Posted June 16, 2009 Report Share Posted June 16, 2009 The 993TT and 928GTS calipers will mount with IPD brackets, and will work with S60R rotors as well. The two calipers look very similar to each other. Depending on what wheel you are running, they might require spacers. Because they are identical calipers with only crossover tube and bleeder placement being reversed. I am unsure about the 928 non-GTS calipers, but here is the info: M030 calipers (928 S4 calipers) (also used on 944 S2 M030, 944 Turbo S) 928-351-421-03 928-351-422-03 36mm/44mm piston sizes NO! 1 1 Quote Link to comment Share on other sites More sharing options...
Chilled man Posted June 16, 2009 Report Share Posted June 16, 2009 Only issue I can ever see of a caliper not working , is if it wont fit over the rotor / width . Other then that brakets can be made for any caliper out there. I am looking to use Porsche Chanyne 6pots on the XC lol But I will need a 350mm rotor Quote Link to comment Share on other sites More sharing options...
Yellow95 Posted June 16, 2009 Report Share Posted June 16, 2009 Porsche 996TT calipers The part numbers for the front calipers are: 996-351-429-10 (left side) 996-351-430-10 (right side) These calipers are significantly thicker than the 993TT and 928GTS calipers, so you will have to use a larger spacer to run them. I am unsure if the IPD brackets will work with these, and I am unsure about the rotor size. Not feasible with the amount of spacer needed. With the 993TT calipers I have 7mm betwen them and the spokes. I would need an additional 5mm to clear 996TT calipers. \ G Quote Link to comment Share on other sites More sharing options...
9883 Posted June 16, 2009 Report Share Posted June 16, 2009 The brembo F50 calipers that are part of the GT kits are wider than the 993 TT calipers, oem pegs will not clear them, you will need at least a 3mm spacer to clear. Also, the pistons are larger, the two smaller ones are 40mm and the two bigger ones are 44, the 993 TT calipers are 36mm and 40mm IIRCThey do however work with the IPD brackets and s60 R rotors Quote Link to comment Share on other sites More sharing options...
rj240 Posted June 17, 2009 Report Share Posted June 17, 2009 Wish this thread was around a few weeks ago... Quote Link to comment Share on other sites More sharing options...
Guest zaga Posted July 29, 2009 Report Share Posted July 29, 2009 hello , does anyone know what these calipers are from and specs,only have the code from one,but they are a pair zaga porsche 996 351 425 11 , black in colour Quote Link to comment Share on other sites More sharing options...
dublin14 Posted July 29, 2009 Report Share Posted July 29, 2009 hello , does anyone know what these calipers are from and specs,only have the code from one,but they are a pair zaga porsche 996 351 425 11 , black in colour 928 GTS! Quote Link to comment Share on other sites More sharing options...
1337-850 Posted July 29, 2009 Report Share Posted July 29, 2009 hello , does anyone know what these calipers are from and specs,only have the code from one,but they are a pair zaga porsche 996 351 425 11 , black in colour 1st, sign in, 2nd, they should work, essentially the same as 993 calipers just with a more square profile so you may need to run a set of spacers up front. They are from a Porsche 996 (hence 996 in the p/n) which is a 1999-2005/2006 911 to most people depending on the body style C2, C4, C4S, Targa, Turbo, GT2 or GT3 928 GTS! FAIL 996 Quote Link to comment Share on other sites More sharing options...
dublin14 Posted July 29, 2009 Report Share Posted July 29, 2009 928 GTS! Sorry i was wrong! Your talkin about a 996 i think? 1st, sign in, 2nd, they should work, essentially the same as 993 calipers just with a more square profile so you may need to run a set of spacers up front. They are from a Porsche 996 (hence 996 in the p/n) which is a 1999-2005/2006 911 to most people depending on the body style C2, C4, C4S, Targa, Turbo, GT2 or GT3 FAIL 996 Its no an Exam... get over your self :lol: Quote Link to comment Share on other sites More sharing options...
lookforjoe Posted July 30, 2009 Report Share Posted July 30, 2009 996 front calipers also fit S60R rotors I used them on the back of my AWD - rotor is the same OD as the front 928/993TT fronts.. admittedly they are smaller than the 993TT/928 calipers I have up front, but should work on the fronts - bolt spacing 130mm - never bothered to check if that's the same as my Front BBK spacing.. 996 351 425 996 351 426 996 352 949 03 pads 999 073 402 01 bolt x4 Quote Link to comment Share on other sites More sharing options...
Spanky Posted July 30, 2009 Report Share Posted July 30, 2009 Is there any 2000+ domestic trucks/suvs (yukon, denali, durango's..ect) that are 2 piston calipers, that mount in a similar fashion, are not to wide and will accept a caliper with a similar width? Quote Link to comment Share on other sites More sharing options...
dublin14 Posted July 30, 2009 Report Share Posted July 30, 2009 996 front calipers also fit S60R rotors I used them on the back of my AWD - rotor is the same OD as the front 928/993TT fronts.. admittedly they are smaller than the 993TT/928 calipers I have up front, but should work on the fronts - bolt spacing 130mm - never bothered to check if that's the same as my Front BBK spacing.. 996 351 425 996 351 426 996 352 949 03 pads 999 073 402 01 bolt x4 Thats 996 NA calipers? Quote Link to comment Share on other sites More sharing options...
JoshV70 Posted July 30, 2009 Report Share Posted July 30, 2009 10% off AP Racing kits: http://www.apracing.com/info/index.asp?section=%3Cimg+border%3D%222%22+src%3D%22http%3A%2F%2Fwww%2Eapracing%2Ecom%2Fpics%2Fproductpics%2Fvolvo+logo%2Ejpg%22%2F%3E_1063 Quote Link to comment Share on other sites More sharing options...
lookforjoe Posted July 30, 2009 Report Share Posted July 30, 2009 Thats 996 NA calipers? Don't know - you'd have to check the part numbers I provided. Cayman S, Boxster S -whatever that is. Quote Link to comment Share on other sites More sharing options...
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