Just got my new Don's Mach 1 injectors. Oo. love them. a solid 2+ mpg empty, close to 3 mpg towing #3500. I have picked up a bad shudder when on the go pedal, especially towing. I can make it do it at any speed, in and out of OD. Where do I start? TC, new transmission :{
99 4x4 QC 130,000 miles
Don's Mach 1
AFE stage 1
straight 3 inch.
otherwise stock.
99 4x4 QC 130,000 miles
Don's Mach 1
AFE stage 1
straight 3 inch.
otherwise stock.