What is the correct c6 z51 front spring
Team Owner
Joined: Sep 2005
Posts: 20,352
Likes: 568
From: Ventura County, Calif
A quick search shows this is probably an early C5 Z51/Z06 spring. I don't think it's quite as heavy as a C6 Z51 but you should check with the C5 guys to be sure. They probably have a chart handy over there.
From the C5 Tech Forum:
And post 8 in here says it isn't as heavy as the C6 spring.
http://www.digitalcorvettes.com/foru...ad.php?t=44205
From the C5 Tech Forum:
Hey guys, quick question:
I'm selling my old T1 springs, and in raised lettering on the springs are the numbers: 22188479 and 22188480
The GM part numbers for the T1 springs are 12480063 and 12480064
I found this information from the forums:
What I/the buyer want to know is why GM has different part numbers/ casting numbers. And under scrutiny by an SCCA official, will they know that these are legal T1 springs?
Thanks for the help
I'm selling my old T1 springs, and in raised lettering on the springs are the numbers: 22188479 and 22188480
The GM part numbers for the T1 springs are 12480063 and 12480064
I found this information from the forums:
"Front Springs
Part Number Casting Num Code Rate Years Suspension Useage
22178728 440# 97-02 FE1 w/o F45 All bodies with soft ride susp FE1,(EXC Chasis Realtime Damping F45)
22178729 22171750 AY 525# 98-00 FE3/Z51, FE4/Z06 All bodies with sport suspension Z51/FE3 and Z06 suspension FE4
22178748 457# 99-02 FE1 with F45 Y07-67 Soft ride suspension FE1, Chasis realtime damping F45
12480063 22188479A 582# 97-02 T1 New New style T1 front spring
22188479 582# 97-02 T1 Old Old style T1 front spring
Rear Springs
Part Number Casting Num Code Rate Years Suspension Useage
22179019 577# 98-03 FE1 with MM6 All bodies with 6 speed MM6 and Soft ride suspension FE1
22179020 22171757 RJF 634# 98-00 FE3/Z51 with MM6 All bodies with 6 speed MM6 and Sport suspension Z51/FE3
22146323 588# 98-03 FE1 with M30 All bodies with 4-spd auto trans M30 and Soft ride suspension FE1
22146646 645# 98-03 FE3/F51 with M30 All bodies with 4-spd auto trans M30 and Sport suspension Z51/FE3
22188038 22188078 RJH 714# 01-03 FE4/Z06 with M12 Z06 Hardtop with 6 speed M12 and FE4 Suspension
12480064 22188480 794# 97-02 T1 T1 Rear Spring"
Part Number Casting Num Code Rate Years Suspension Useage
22178728 440# 97-02 FE1 w/o F45 All bodies with soft ride susp FE1,(EXC Chasis Realtime Damping F45)
22178729 22171750 AY 525# 98-00 FE3/Z51, FE4/Z06 All bodies with sport suspension Z51/FE3 and Z06 suspension FE4
22178748 457# 99-02 FE1 with F45 Y07-67 Soft ride suspension FE1, Chasis realtime damping F45
12480063 22188479A 582# 97-02 T1 New New style T1 front spring
22188479 582# 97-02 T1 Old Old style T1 front spring
Rear Springs
Part Number Casting Num Code Rate Years Suspension Useage
22179019 577# 98-03 FE1 with MM6 All bodies with 6 speed MM6 and Soft ride suspension FE1
22179020 22171757 RJF 634# 98-00 FE3/Z51 with MM6 All bodies with 6 speed MM6 and Sport suspension Z51/FE3
22146323 588# 98-03 FE1 with M30 All bodies with 4-spd auto trans M30 and Soft ride suspension FE1
22146646 645# 98-03 FE3/F51 with M30 All bodies with 4-spd auto trans M30 and Sport suspension Z51/FE3
22188038 22188078 RJH 714# 01-03 FE4/Z06 with M12 Z06 Hardtop with 6 speed M12 and FE4 Suspension
12480064 22188480 794# 97-02 T1 T1 Rear Spring"
What I/the buyer want to know is why GM has different part numbers/ casting numbers. And under scrutiny by an SCCA official, will they know that these are legal T1 springs?
Thanks for the help
And post 8 in here says it isn't as heavy as the C6 spring.
http://www.digitalcorvettes.com/foru...ad.php?t=44205
