{"id":138,"date":"2017-01-17T04:38:13","date_gmt":"2017-01-17T04:38:13","guid":{"rendered":"http:\/\/gtconcepts.ca\/main\/?p=138"},"modified":"2017-01-17T04:38:13","modified_gmt":"2017-01-17T04:38:13","slug":"1979-04-v-8-mustang-production-aftermarket-spring-rates","status":"publish","type":"post","link":"http:\/\/gtconcepts.ca\/main\/1979-04-v-8-mustang-production-aftermarket-spring-rates\/","title":{"rendered":"1979-04 V-8 Mustang Production & Aftermarket Spring Rates"},"content":{"rendered":"

When adjusting the handling of your Fox or SN95 generation Mustang springs play a pivotal role. <\/strong><\/em><\/p>\n

Selecting the correct spring is a matter of identifying the needs of the vehicle and comparing against the published rates offered by OEM and Aftermarket manufacturers. As these cars age, the once common data and specifications is increasingly difficult to find, below is a list of common rates and models to help you make informed choices with your build.<\/p>\n

A split number indicates a progressive rate springs,
\nwith the first number being the initial rate and the second number for the stiffer coil. Rates are listed in lbs\/in.<\/p>\n

OEM Springs<\/strong>
\n1979
\nF395 R160<\/p>\n

1980-81
\nF370 R160<\/p>\n

1982
\nF395 R160<\/p>\n

1983-84
\nF410 R160<\/p>\n

1984.5-93
\nF425\/525 R200\/300<\/p>\n

1993 SVT Cobra
\nF425\/525 R160<\/p>\n

1993 SVT Cobra \u201cR\u201d
\nF750\/850 R240\/260<\/p>\n

1994-98
\nF400\/500 R200\/300<\/p>\n

1994-98 SVT Cobra
\nF400 R160<\/p>\n

1995 SVT Cobra \u201cR\u201d
\nF700\/850 R200\/260<\/p>\n

1999-04
\nF450 R210<\/p>\n

1999 SVT Cobra
\nF500 R470<\/p>\n

2000 SVT Cobra \u201cR\u201d
\nF800 R750<\/p>\n

2001-02 SVT Cobra
\nF500 R470<\/p>\n

2003-04 SVT Cobra
\nF600 R600<\/p>\n

2003-04 Mustang Mach1 Coupe
\nF600 (linear)
\nR250 (linear, solid axle)<\/p>\n

2001-02 Mustang Bullitt Coupe
\nF600 (linear)
\nR250 (linear, solid axle)<\/p>\n

Ford Racing Spring Rates:<\/strong><\/p>\n

M-5300-B
\nF425\/530 R200\/300<\/p>\n

M-5300-C
\nF650 R200\/300<\/p>\n

M-5300-F
\nF460\/570 R170\/310<\/p>\n

M-5300-G
\nF500\/570 R170\/310 (Convertible Only)<\/p>\n

FRPP (Eibach) Drag Kit with Airbag
\nM-3000-D
\nF300\/465
\nLeft Rear 180
\nRight Rear 180\/350<\/p>\n

Aftermarket Spring Rates<\/strong><\/p>\n

Manufacturer\/Part Info
\nFront Spring Rate (lb\/in)
\nRear Spring Rate (lb\/in)<\/p>\n

Eibach Pro-Kit Springs (94-04 Mustangs)
\n425-530 (progressive)
\n200-300 (progressive, solid axle)<\/p>\n

Eibach Sportline Springs (79-04 Mustangs)
\n425-630 (progressive)
\n140-295 (progressive, solid axle)<\/p>\n

H&R Sport Springs (94-04 Mustangs)
\n490-575 (progressive)
\n205-250 (progressive, solid axle)<\/p>\n

H&R Sport Springs (99-04 Cobra)
\n700-760 (progressive)
\n685 (linear, IRS)<\/p>\n

H&R Super Sport Springs (94-04 Mustangs)
\n700-760 (progressive)
\n275-300 (progressive, solid axle)<\/p>\n

H&R Race Springs (79-04 Mustangs)
\n750-850 (progressive)
\n260-280 (progressive, solid axle)<\/p>\n

H&R Race Springs (99-04 Cobra)
\n750-850 (progressive)
\n770 (linear, IRS)<\/p>\n

Steeda Sport Springs (79-04 Mustangs)
\n650 (linear)
\n200-250 (progressive, solid axle)<\/p>\n

Steeda Sport Springs (03-04 Cobra)
\n720-780 (progressive)
\n650-790 (progressive, IRS)<\/p>\n

Steeda Competition Springs (79-04 Mustangs)
\n750-850 (progressive)
\n250 (linear, solid axle)<\/p>\n

StangSuspension Springs (94-04 Mustangs)
\n490-575 (progressive)
\n205-250 (progressive, solid axle)<\/p>\n

 <\/p>\n

 <\/p>\n","protected":false},"excerpt":{"rendered":"

When adjusting the handling of your Fox or SN95 generation Mustang springs play a pivotal role. Selecting the correct spring is a matter of identifying the needs of the vehicle and comparing against the published rates offered by OEM and Aftermarket manufacturers. As these cars age, the once common data and specifications is increasingly difficult […]<\/p>\n","protected":false},"author":1,"featured_media":139,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"nf_dc_page":"","jetpack_post_was_ever_published":false,"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":true,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2}},"categories":[8,7],"tags":[3,30,4,33,31,32],"class_list":["post-138","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-mustang","category-tech","tag-ford","tag-fox","tag-mustang","tag-rates","tag-sn95","tag-spring"],"jetpack_publicize_connections":[],"jetpack_featured_media_url":"https:\/\/i0.wp.com\/gtconcepts.ca\/main\/wp-content\/uploads\/2017\/01\/P1000414.jpg?fit=2560%2C1920","jetpack_sharing_enabled":true,"jetpack_shortlink":"https:\/\/wp.me\/p8in4L-2e","jetpack-related-posts":[],"_links":{"self":[{"href":"http:\/\/gtconcepts.ca\/main\/wp-json\/wp\/v2\/posts\/138","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/gtconcepts.ca\/main\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/gtconcepts.ca\/main\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/gtconcepts.ca\/main\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/gtconcepts.ca\/main\/wp-json\/wp\/v2\/comments?post=138"}],"version-history":[{"count":1,"href":"http:\/\/gtconcepts.ca\/main\/wp-json\/wp\/v2\/posts\/138\/revisions"}],"predecessor-version":[{"id":140,"href":"http:\/\/gtconcepts.ca\/main\/wp-json\/wp\/v2\/posts\/138\/revisions\/140"}],"wp:featuredmedia":[{"embeddable":true,"href":"http:\/\/gtconcepts.ca\/main\/wp-json\/wp\/v2\/media\/139"}],"wp:attachment":[{"href":"http:\/\/gtconcepts.ca\/main\/wp-json\/wp\/v2\/media?parent=138"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/gtconcepts.ca\/main\/wp-json\/wp\/v2\/categories?post=138"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/gtconcepts.ca\/main\/wp-json\/wp\/v2\/tags?post=138"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}