I belive that I need to lengthen my rear driveshaft after installing my 6 inch lift on my K5. What is a fair price to pay to have a shaft lengthened? What is a fair price for a driveshaft from an 83 K10 that had 8 inches of lift on it? Will that shaft be to long for my 86 K5? Both trucks have np 208 Transfer cases. Here is a pic of my tailshaft and slipyoke.