1200sprinter... Get accsess to a mill and lathe... I machined everything i could on my car that wasnt a saftey structure,tossed the bailey motor plate,tossed the garden tractor battery,All aluminum hiems,did buy some hollow bolts...I was at 230lbs and weighed in at 963...FYI... Its alot of work... ; )... plus i run a full midget axle,1/2 radius ods/hiems,and bladder... If i ran a cheesey fuel cell and bailey front im sure to lose another 10/15lbs...