I think you want a 8 or 9 inch from a 65/66 Mustang....I have a 8 inch(65 Mustang) under my 74 Gremlin with 4.10 gears/mini spool that I have been pounding on hard for the last 8 years or so with up to 300+ RW HP from a 401 and have yet to break it..using MT dot drag tires I think one is 43 1/2 and the other 44 inches wide spring perches not sure which is which....bolted in with no problems..... 77-81 Versailles 58.50 inches wide .. flange to flange 65-66 Mustang 57.25 inches 67-70 Mustang 59.25 inches AMC 20 58.5 inches wide.... F to F Jim Shadwick Treasure Valley AMC Club of Idaho http://idahoamcrambler.com/ 208-899-7616 ------------------------------------ Yahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/BaadAssGremlins/ <*> Your email settings: Individual Email | Traditional <*> To change settings online go to: http://groups.yahoo.com/group/BaadAssGremlins/join (Yahoo! ID required) <*> To change settings via email: BaadAssGremlins-digest@xxxxxxxxxxxxxxx BaadAssGremlins-fullfeatured@xxxxxxxxxxxxxxx <*> To unsubscribe from this group, send an email to: BaadAssGremlins-unsubscribe@xxxxxxxxxxxxxxx <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/