Wonder where to get a decent priced 3-4 inch lift for a 90 cummins four wheel drive. Skyjacker has one for around 700 i believe i have seen some cheaper but they dont say weather they are made for the diesel or not.

 

I been pretty happy with the Skyjacker springs on my 1st Gen. They settled a bit unevenly over the first couple years, but I suspect that is mostly due to the nature of the beast being driver-side heavy. An extra leaf under the front left corner and a 1" block under the right rear corner had it running evenly level and holding that stance for the past two years.