PowerTrax 1920-LR Features: Brute Force Devices For Rugged Applications Best Value For Greatly Increased Traction Complete Replacement Of Diff. Case Not Req. Simple Installation Ring And Pinion Setup Not Altered Installs Easily In Front/Rear Or Both Proven In Most Demanding Applications Height: 2.250 Width: 4.250 Length: 9.000 Weight: 4.25 Fitment: 2012/GMC/Savana 2500/SLE Standard Passenger Van 4-Door/6.0L 5967CC 364Cu. In. V8 FLEX OHV Naturally Aspirated::Rear^^2012/GMC/Savana 2500/SLE Standard Passenger Van 4-Door/4.8L 294Cu. In. V8 FLEX OHV Naturally Aspirated::Rear^^2012/GMC/Savana 2500/SLE Standard Passenger Van 3-Door/6.0L 5967CC 364Cu. In. V8 FLEX OHV Naturally Aspirated::Rear^^2012/GMC/Savana 2500/SLE Standard Passenger Van 3-Door/4.8L 294Cu. In. V8 FLEX OHV Naturally Aspirated::Rear^^2012/GMC/Savana 2500/SL S...