My Brother has a 1999 Uni-Mog 2200 series with the Cummins 5.9 swap, this thing will do 85 mph all day long and get 9 miles per gal! Parts are uber expensive, especially the portal hubs and wheel end gear sets, which the front end chews up once a year! I actually have a cab for one ( twin to my bro) that I will install on my new ( auction win) LMTV with MRAP axles and big 8.3 cummins diesel! Will have a more useful truck with far more readally available parts at far cheeper prices, and an engine not as fragail as the Mercedes engine!