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Matching Mustang spring rates

Each table lists a series of struts and shocks. Within each table, springs are recommended for the different front and rear suspension configurations of a Mustang.

MM Sport Series Spring Recommendations
Stock Location Springs H&R Race
H&R Super Race
Coil-Over Spring Rates
Front Springs 350 - 400 lb/in
Solid Axle Rear Springs 225 - 300 lb/in
IRS Rear Springs 500 - 600 lb/in



MM2 Race Series Spring Recommendations
Stock Location Springs H&R Super Race
Coil-Over Spring Rates
Front Springs 400 - 425 lb/in
Solid Axle Rear Springs 275 - 325 lb/in
IRS Rear Springs 600 - 650 lb/in



MM3 Race Series Spring Recommendations
Stock Location Springs Not recommended
Coil-Over Spring Rates
Front Springs 450 - 500 lb/in
Solid Axle Rear Springs 325 - 375 lb/in
IRS Rear Springs 650 - 700 lb/in



Bilstein Heavy Duty (HD) Series Spring Recommendations
Stock Location Springs MM Road & Track
H&R Race
H&R Super Sport
H&R Sport
Eibach Pro-Kit
Stock Springs
Coil-Over Spring Rates
Front Springs 250 - 325 lb/in
Solid Axle Rear Springs 175 - 250 lb/in
IRS Rear Springs 475 - 525 lb/in



Bilstein OEM 2000 Cobra R Spring Recommendations
Stock Location Springs Ford 2000 Cobra R
Coil-Over Spring Rates
Front Springs Not recommended
Solid Axle Rear Springs Not available
IRS Rear Springs 575 - 650 lb/in



Tokico Premium Performance Spring Recommendations
Stock Location Springs Stock Springs
Eibach Pro-Kit
H&R Sport
Coil-Over Spring Rates
Front Springs Not recommended
Solid Axle Rear Springs Not available
IRS Rear Springs Not available



Tokico Illumina Spring Recommendations
Stock Location Springs Stock Springs
Eibach Pro-Kit
H&R Sport
H&R Super Sport
H&R Race
Coil-Over Spring Rates
Front Springs 250-325 lb/in
Solid Axle Rear Springs Not available
IRS Rear Springs Not available



Tokico D-Spec Spring Recommendations
Stock Location Springs Stock Springs
Eibach Pro-Kit
H&R Sport
H&R Super Sport
H&R Race
H&R Super Race
Coil-Over Spring Rates
Front Springs 150-375 lb/in
Solid Axle Rear Springs Not available
IRS Rear Springs Not available



Koni Single Adjustable Sport Spring Recommendations
Stock Location Springs Stock Springs
MM Road & Track
Eibach Pro-Kit
H&R Sport
H&R Super Sport
H&R Race
Coil-Over Spring Rates
Front Springs 275-375 lb/in
Solid Axle Rear Springs Not available
IRS Rear Springs 475-525 lb/in



Koni Double Adjustable Sport Spring Recommendations
Stock Location Springs MM Road & Track
H&R Race
H&R Super Race
Coil-Over Spring Rates
Front Springs 325-525 lb/in
Solid Axle Rear Springs 200-375 lb/in
IRS Rear Springs Not available