GMC K3500 Transmission Service Kits
This page brings together transmission service kits for the GMC K3500, covering model years 1968 through 2000. The range spans everything from routine filter replacements to more involved overhaul and master repair kits, giving owners a single destination for transmission upkeep and rebuilding supplies. Select your year above and we'll show only the transmission service kits that fit your GMC K3500. Fitment is checked against our vehicle data for every part listed.
B&M 80775 Unimatic Automatic Detent Shifter Universal 3-Speed 4-Speed
B&M 80683 QuickSilver Automatic Ratchet Shifter Universal Floor Mount
B&M 80680 MegaShifter Automatic Ratchet Shifter for Light Trucks
B&M 80690 MegaShifter Automatic Ratchet Shifter for 3-4 Speed Transmissions
B&M 80776 Automatic Detent Shifter SportShifter with Lighted Gear Indicator
B&M 80685 MegaShifter Automatic Ratchet Shifter Right Hand Drive
B&M 70380 ShiftPlus Shift Improver Kit for GM 4L60E/4L80E Transmissions
B&M 30229 TransKit Automatic Transmission Rebuild Kit for GM TH-350
B&M 20229 TransKit Automatic Transmission Shift Improver Kit for TH400
B&M 20228 TransPak Recalibration Kit for GM TH400/TH375 Automatic Transmissions
B&M 30228 TransPak Recalibration Kit for GM TH350 Automatic Transmissions
B&M 70235 TransPak Shift Improver Kit for GM TH700R4/4L60 Transmissions
B&M 20260 Shift Improver Kit for TH400 TH375 TH475 Transmissions
B&M 30235 TransPak Transmission Recalibration Kit for GM TH350C Lockup
BD Diesel 1030471 Allison 1000 Performance Valve Body 2004-2006 Duramax LLY
What's here for your GMC K3500
- Automatic Transmission Filter Kits — replacement filters packaged with gaskets for routine service intervals
- Automatic Transmission Shift Kits — valve body recalibration kits designed to firm up shift feel and timing
- Automatic Transmission Shift Lever Kits — hardware for the manual shift lever and associated linkage
- Automatic Transmission Mount Kits — rubber and performance-style mounts to secure the transmission in the chassis
- Automatic Transmission Overhaul Kits — comprehensive gasket and seal sets for a full transmission rebuild
- Automatic Transmission Valve Body Kits — components targeting the valve body for pressure and shift calibration work
- Automatic Transmission Master Repair Kits — all-in-one rebuild packages combining seals, gaskets, and friction materials
The widest selection here comes from ATP, B&M, Transgo Performance, and Prothane, covering a broad span of GMC K3500 model years and transmission types. Other categories GMC K3500 owners shop for: GMC K3500 Exhaust and Tail Pipes, GMC K3500 Brake Hardware and GMC K3500 Valve Train Parts, or browse all GMC K3500 parts and accessories.