4 Wheel Drive Switch Fits Chevrolet 2002-01, Fits GMC 2002-01 Fitment: 2001/GMC/Yukon XL 2500/SLT Sport Utility 4-Door/8.1L 496Cu. In. V8 GAS OHV Naturally Aspirated::Transfer Case (NP1); Small Connector is 6 Way & Large Connector is 8 Way;; Qty needed per vehicle- 1 ;[4WD Switch]^^2001/GMC/Yukon XL 2500/SLT Sport Utility 4-Door/6.0L 5967CC 364Cu. In. V8 GAS OHV Naturally Aspirated::Transfer Case (NP1); Small Connector is 6 Way & Large Connector is 8 Way;; Qty needed per vehicle- 1 ;[4WD Switch]^^2001/GMC/Yukon XL 2500/SLE Sport Utility 4-Door/8.1L 496Cu. In. V8 GAS OHV Naturally Aspirated::Transfer Case (NP1); Small Connector is 6 Way & Large Connector is 8 Way;; Qty needed per vehicle- 1 ;[4WD Switch]^^2001/GMC/Yukon XL 2500/SLE Sport Utility 4-Door/6.0L 5967CC 364Cu. In. V8 GAS OHV Naturally Aspirated::Transfer Case (NP1); Small Connector is 6 Way & Large Connector is 8 Way;; Qty needed per vehicle- 1 ;[4WD Switch]^^2001/GMC/Sierr...