1996-1999 GM Full Size 2/4WD 6.5L Diesel Engine6087 Injection Pump Wrench Set Product Descriptions Fitment: Fit for 1996-1999 GM Full Size 2WD / 4WD Trucks and Vans, for Suburbans with 6.5L Diesel Engine Features: 1) Use to loosen and tighten injection pump retaining bolts when pump timing adjustment/pump service is required. Similar to Kent-Moore J-41711 and J-41089. .