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    1. 01-22-2012 #1
      73RSZ28's Avatar
      73RSZ28
      73RSZ28 is offline Registered User
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      C5 Install

      So I'm in the middle of my C5 swap and now I've discovered I have a fitment issue. The front face of the caliper is hitting the back of the spoke area on my wheels. I understand that I could do a C4/C5 hybrid using the C4 rotor and a C5 caliper and this pushes the caliper back a bit. Does anyone have a template that I can verify with? Does anyone have any hybrid brackets around or know where I can get them? Looks like I may have some nice rotors and brackets available?


      Jeremy Holman
      '73 Camaro RS Z/28. 388 cid, 200-4R Art Carr, C5 brakes, Hydroboost, Budnik Hammers, PTFB GT Springs, Subframe Connectors, Solid body bushings, G Braces, Front and Rear Sway bars.
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    3. 01-22-2012 #2
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      73RSZ28
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      So I did a little more measuring and I think some 1/4" wheel spacers will do the trick.
      Jeremy Holman
      '73 Camaro RS Z/28. 388 cid, 200-4R Art Carr, C5 brakes, Hydroboost, Budnik Hammers, PTFB GT Springs, Subframe Connectors, Solid body bushings, G Braces, Front and Rear Sway bars.
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    4. 01-22-2012 #3
      Jeff70
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      What kind of wheels are you running? Also you most likely will need longer studs with 1/4" .
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    5. 01-23-2012 #4
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      73RSZ28
      73RSZ28 is offline Registered User
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      Quote Originally Posted by Jeff70 View Post
      What kind of wheels are you running? Also you most likely will need longer studs with 1/4" .
      17" Budnik Hammers. I'm looking at the stud issue now. The 3rd gen hubs use metric studs 12mm. I would like to switch back to SAE 7/16" studs since my rears are SAE. What is the part number or knurl size of the 3rd gen hubs?
      Jeremy Holman
      '73 Camaro RS Z/28. 388 cid, 200-4R Art Carr, C5 brakes, Hydroboost, Budnik Hammers, PTFB GT Springs, Subframe Connectors, Solid body bushings, G Braces, Front and Rear Sway bars.
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    6. 01-23-2012 #5
      a67
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      Quote Originally Posted by 73RSZ28 View Post
      17" Budnik Hammers. I'm looking at the stud issue now. The 3rd gen hubs use metric studs 12mm. I would like to switch back to SAE 7/16" studs since my rears are SAE. What is the part number or knurl size of the 3rd gen hubs?
      3rd gen f-body? If so:

      ARP 7708
      GM: Camaro/Firebird/Corvette, late GM, 12mm x 1.5 thread, 2 1/2 in. long, .509 in. knurl diameter, wheel studs


      napa 6411581
      Motormite 98501
      Dorman 610-323
      They are 54mm long (about 2-1/8"), .509 knurl with an 8mm shoulder.

      I used the Dorman studs. Note that these are longer then stock and are metric.

      Bob.
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    7. 02-07-2012 #6
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      73RSZ28
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      OK so I have the spacers on and longer studs. Everything is clearing but I'm very close. What is the minimum safe clearence between back of wheel and caliper face also between wheel hoop and caliper fins?
      Jeremy Holman
      '73 Camaro RS Z/28. 388 cid, 200-4R Art Carr, C5 brakes, Hydroboost, Budnik Hammers, PTFB GT Springs, Subframe Connectors, Solid body bushings, G Braces, Front and Rear Sway bars.
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    8. 02-07-2012 #7
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      73RSZ28
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      Jeremy Holman
      '73 Camaro RS Z/28. 388 cid, 200-4R Art Carr, C5 brakes, Hydroboost, Budnik Hammers, PTFB GT Springs, Subframe Connectors, Solid body bushings, G Braces, Front and Rear Sway bars.
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    9. 02-07-2012 #8
      Apogee
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      Minimum safe clearance is ~2mm or .08"...a little more certainly doesn't hurt. I've seen less work, but they were on more rigid setups.

      Tobin
      KORE3
      It's what I does.
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    10. 02-08-2012 #9
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      73RSZ28
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      Quote Originally Posted by Apogee View Post
      Minimum safe clearance is ~2mm or .08"...a little more certainly doesn't hurt. I've seen less work, but they were on more rigid setups.

      Tobin
      KORE3
      Well I can grind more off the caliper fins to get the hoop clearence but the spokes I guess I should have went thicker on the spacers. Currently 5/16", 3/8" would give me this clearence. Could I shave a bit off the pad?
      Jeremy Holman
      '73 Camaro RS Z/28. 388 cid, 200-4R Art Carr, C5 brakes, Hydroboost, Budnik Hammers, PTFB GT Springs, Subframe Connectors, Solid body bushings, G Braces, Front and Rear Sway bars.
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    11. 02-08-2012 #10
      Apogee
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      You can certainly take a little off the outside pad without hurting anything but your pad life.

      Tobin
      KORE3
      It's what I does.
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