Popular Aftermarket Spring Rates

From 3.8Wiki

                                    front         rear          

'87 Mustang 2.3L -_______________________370___________160

'87-93 Mustang 5.0 -_____________________425-530_______200-300

'93 Mustang Cobra -______________________425-530_______160

'93 Mustang Cobra R -____________________750-850_______240-260

'94-95 Mustang Cobra -___________________400___________160

'95 SVT Cobra R -________________________700-850_______200-260

'96-98 Mustang Cobra -___________________400-505_______165-265

'99-04 Mustang V6 OEM -_________________400___________190

'99-04 Mustang GT OEM -_________________450___________210

2000 SVT Cobra R (Eibach) -_______________800

2001 SVT Cobra OEM -____________________500__________470 (IRS)

2001 Bullitt - ____________________________600__________250

2003 Mach 1 -___________________________600__________250

2003 SVT Cobra (Conv.) OEM -_____________500__________470 (IRS)

2003 SVT Cobra Coupe OEM -______________600__________600 (IRS)

Dech Speeddrive -_______________________1000-1200_____210-280

Eibach Prokit -___________________________425-530______200-300

Eibach ProKit Convertible -_________________460-570______170-310

Eibach ProKit Coupe -_____________________460-570______200-250

Eibach Racekit -_________________________700-850_______200-260

Eibach Sportline -________________________425-630_______140-295

Ford Motorsports B -______________________425-530______200-300

Ford Motorsports C -______________________650__________200-300

Ford Motorsports F -______________________460-570______200-250

Ford Motorsports G (Conv.) -_______________460-570______170-310

Ford Motorsports R -______________________700-850______200-260

Global West -____________________________800__________160

Global West Comp -_______________________1000_________160

Global West Drag -________________________680__________160

H&R Cobra Convertible Race -______________750-850_______770 (IRS)

H&R Cobra Coupe -_______________________700-760_______685 (IRS)

H&R Cobra Vert Super Sport -______________700-760_______685 (IRS)

H&R Race -_____________________________750-850_______260-280

H&R Sport -_____________________________490-575_______250-285

H&R Super Race -________________________950-1050_____260-300

H&R Super Sport Coupe -__________________700-760______275-300

H&R Super Sports Vert -___________________700-760______275-300

Jamex -_________________________________450-550______170-220

Jamex Sportsprings -______________________425-450______180-225

Kenny Brown -___________________________650__________800 (IRS)

MAC Progressives -_______________________450-520______200-230

MRT -__________________________________650__________200-250

Progress -______________________________580___________250-300

Saleen (Eibach ProKit?) -__________________460-570______200-250

Steeda Competition -_____________________750-850_______250

Steeda Full Comp [front] -_________________850-1050

Steeda Sport -__________________________650___________200-250

Suspension Tech Street -_________________725___________230

Suspension Tech Comp -__________________850___________280

Tein S-tech -___________________________540___________270