ok for a spring over on a fj60 can i just use the spring perches that are already on the front or should i weld new spring perches on or can i just the ones that already there but can i still use the stock u bolts or do i need longer ones? i found these on jt outfitters http://jtoutfitters.com/product/MRG6280 they seem good to me i just need to know if i need two or 4,, 2 would be bettter cause it is only 20 and not 40 bucks.... lol