The United Stated military needed a successor for the M38 Kayser Jeep. The MUTT has a unibody design and independent suspension and more ground clearance then the older solid axle jeeps. These vehicles has no problem going 55 or even 60 mph. These jeep were used till the end of the 80s until replaced by the chevy line of vehicles. The USMC used their FAVs (Fast Attack Vehicle) until 2003. The IDF (Israel Defence Forces) are still using MUTTs.