theres a book out there that tells you where to apply heat to get a rear back in spec, but i just took mine to currie and they shortened it and put new 9" ends on my 12 bolt.
are your 20 x 12's 3 piece?
my plan was 1/2" on the inside and 1/4" on the outside since the axle cant get any longer but can get shorter in its movement. so all i am accounting for is lateral movement on the outside. there shouldnt be a lot with my watts. also, this is at full compression. there is a little more at ride height.
Tim
Last edited by The WidowMaker; 03-08-2010 at 11:40 AM.
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