No Yes Yes No No No Yes Yes Truck (a) 2001 6.6L Duramax Diesel 2705 All No No No ... 1 Note 1 Yes Yes Yes Yes No Yes Yes DODGE, JEEP Ram 98 1/2-02 5.9L 24v Cummins ... All No No Note 1 Yes No No No Yes Yes Ram 05-06 5.9L 24v Cummins Diesel 3805* All ... Note 1 Yes Yes Yes No Yes No Yes Yes Ram 2003 5.7L HEMI 3715 All No Note 1 Yes ... Yes No Yes No Yes Yes Ram 04-05 5.7L HEMI 3815* All Yes Note 1 ... Yes Yes N/A Yes No Yes Yes Ram, Dakota, Durango 98-03 3.9L, 5.2L, 5.9L ... All No No Yes Yes No Yes No Yes Yes Ram, Dakota, Durango 99-03 4.7L 3715 All No ... 2 Except vehicles equipped with Allison transmission (e) Except 02-04 4.6L Mountaineer, ... Firm Points Tuning GENERAL MOTORS 4.3 2001 30023 All Yes N/A Yes Yes Yes Yes Yes ... Dual Fuel 8.1 2001 30023 Allison Yes N/A Tire Only Yes Yes ...