Joshua022

I want to do a 3/5kit on my rcsb sierra because it sits like a 4wd. But I'm worried about the whole shortening the driveshaft problem, is that on every trucks or only on those made before a certain date? If so what's the date and how do I see when mine was built?

My 4.3 is getting 19 around town and 26 on the highway, I got 647 miles on one tank back and forth from the beach. Of course I'm obsessed with mileage soo results may vary..

I'm having a vibration issue as well in my 14 rcsb sierra 4.3.. 2wd sle It comes and goes, but seems to be more often when I'm in 4cyl mode.. There are soo many pages in this thread, and I didn't read them..I know I should but I honestly don't have time but I did skim through. Is there an answer? Driveshaft? Tranny? Engine unbalanced when it goes to 4cyl mode... Thank you Joshua