I just got a 67 ranchero 500 with 289. The rear leafs at totally shot, they at flat and the PO put extensions on the rears and they are still flat and I have negative rake. Ideally i would love to purchase a used pait in good condition. if not can you guys point me in the right direction for an affordable new pair. I have found these following links: http://www.truckcomponentsonline.com/FORDMERCURYLINCOLN_c_579.html https://www.stengelbros.net/42-367-Ford-Ranchero-Leaf-Spring-Assembly-_p_2959.html
I've heard good things about these guys on other Ford forums: https://www.ebay.com/str/mcveighstrucksprings
Extensions raise the rear. they are extended shackle brackets. they have a 3-hole option to set the hieght where you want. That are set all the way extended and the rear is still lower that the front.
Cool car! Only one of the links has the 42-367 which is the correct spring for the 67, or at least from what I could find after investigating all 3 links. At $210 they seem reasonably priced.
Rear spring for these cars are readily available... Dearborne Classics, CJPONY, NPD, Mcveighs (mentioned above), carid, SDTruckSprings… just to name a few! NICE CAR...!!!