I have a Cognito 10-12" lift with 8" Deaver springs on a 2" blocks in the rear. With that high of a lift I know I need to extend my drive line. I got a quote of $800 to extend my rear drive shaft an additional 2". Has anyone installed a longer slip yoke instead of extended their drive shaft? Found an 8" slip yoke from Speedway and I was wondering if anyone has gone this route.