1988 GMC P-Series Transmission Parts
Select Your Submodel
- Clutch Kits
- Automatic Transmission Oil Coolers
- Transmission Mounts
- Solenoids, Sensors, Switches, Control Units
- Transmission Filters
- Automatic Transmission Torque Converters
- Transmission Shifters
- Clutch Flywheels
- Pans, Drain Plugs, Filler Caps
- Clutch Hydraulics
- Seals & Gaskets
- Rebuild Kits
- Clutch Linkages
- Clutch Release Bearings
- Automatic Transmission Valve Bodies
- Bearings
- Automatic Transmission Flexplates
- Automatic Transmission Oil Pumps
- Transmission Shafts & Gears
- AT Bands & Clutches
- Automatic Transmission Governors, Modulators
- Automatic Transmission Assemblies
- Clutch Pressure Plates
- Clutch Discs
- Transmission Fluids, Oils & Additives
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Four Seasons®Automatic Transmission Oil Cooler Mounting KitGMC P2500 / P3500 Automatic Transmission 1988, Automatic Transmission Oil Cooler Mounting Kit by Four Seasons®. All products are engineered and tested to provide years of trouble free operation. Backed by over 50 years of car parts...OE quality parts from top original equipment and aftermarket manufacturersThe finest quality at a great price$2.91 - $17.55 - Dorman®Automatic Transmission Shift Lever Control Rod BushingGMC P2500 / P3500 Automatic Transmission 1988, Automatic Transmission Shift Lever Control Rod Bushing by Dorman®. Upper. Dorman offers a line of Auto Trans Shift Lever Control Rod Bushings for a range of applications. All their Auto...Direct replacement for a proper fit every timeEasy to install$2.74
- ACDelco®Genuine GM Parts™ Automatic Transmission Dipstick Tube SealGMC P2500 / P3500 Automatic Transmission 1988, Genuine GM Parts™ Automatic Transmission Dipstick Tube Seal by ACDelco®. Quantity: 10. Designed utilizing the latest technology, this product by ACDelco features premium quality and will...Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle$4.40Save: $0.67 (15%)$3.73
- Timken®Automatic Transmission Extension Housing SealGMC P-Series 1988, Automatic Transmission Extension Housing Seal by Timken®. With Boot. Width: 0.470". Outside Diameter: 2.381". Housing Bore: 2.377". Timken offers the right seal to keep your vehicle running optimally. Timken seals...Machined rubber sealing edge provides greater accuracy and consistency and a better sealing surfaceAn extra dust lip helps keep harmful contaminants out and protects against rust and corrosion$3.11
- Timken®Clutch Pilot BearingGMC P-Series 1988, Clutch Pilot Bearing by Timken®. OD: 1.0955" Housing Diameter. Get optimum vehicle performance with Timken bearings. Timken manufactures ball bearings, cylindrical roller bearings, and tapered roller bearings, and all...Designed to effectively reduce frictionUltimate load handling capability$21.70
- Four Seasons®Transmission Oil Cooler CouplingGMC P2500 / P3500 Transmission with 1/2"-20 Thread 5/16" Transmission Lines 1988, Transmission Oil Cooler Coupling by Four Seasons®. With Quick Connect Coupler. All products are engineered and tested to provide years of trouble free...OE quality parts from top original equipment and aftermarket manufacturersThe finest quality at a great price$6.19
- Lokar®Cable Column Shift LinkageGMC P2500 / P3500 Automatic Transmission 1988, Cable Column Shift Linkage by Lokar®. Diameter: 2". Lokar’s Column Cable Shift Linkage is the ultimate answer to interference issues when you are unable to use factory or Lokar’s hard...The highest level of quality and craftsmanshipDeveloped with modern technology and innovation$231.95
- Timken®Automatic Transmission Torque Converter SealGMC P2500 / P3500 Automatic Transmission 1988, Automatic Transmission Torque Converter Seal by Timken®. Width: 0.425". Outside Diameter: 2.762". Housing Bore: 2.758". Timken offers the right seal to keep your vehicle running optimally....Machined rubber sealing edge provides greater accuracy and consistency and a better sealing surfaceAn extra dust lip helps keep harmful contaminants out and protects against rust and corrosion$5.03
- National®Automatic Transmission Extension Housing SealGMC P2500 / P3500 Transmission with GMC THM400 Transmission 1988, Automatic Transmission Extension Housing Seal by National®. Without Boot. Width: 0.582". Inside Diameter: 1.887". Outside Diameter: 2.704". Housing Bore: 2.700". Don’t...Designed to increase wheel-end reliability by effectively excluding dirt, moisture, and other contaminantsA patent-pending National Dynamic Edge technology allows for maximum protection$5.49
- SKF®Automatic Transmission Oil Pump SealGMC P-Series Automatic Transmission 1988, Automatic Transmission Oil Pump Seal by SKF®. Front. Take your vehicle out of your garage back to the road by replacing your worn out or defective part with the top-notch SKF component. It will...Excellent replacement for your worn out or faulty partDesigned to restore original performance and reliability$4.67 - $4.82
- ATP®Flywheel ShimGMC P-Series Standard Transmission 1988, Flywheel Shim by ATP®. ATP is your number one source for replacement parts that ensure a precise fit, high reliability, superior durability, and long-lasting service life at an affordable price....OE quality at an affordable priceOE fit and function$11.42 - $16.89
- ARP®Flywheel Bolt KitGMC P2500 / P3500 5.7L Transmission with 8-Bolt Crankshaft, Small Block Engine 1988, Flywheel Bolt Kit by ARP®. Material: 8740 Chrome Moly. Size: 7/16-20. Finish: Black. Quantity: Set of 8. Wrench Size: 3/4". Designed utilizing the...Designed to unlock more performance out of your vehicleDeliver a reasonable balance of strength and durability$44.19
- Dorman®Clutch Pilot BearingGMC P-Series 1988, Clutch Pilot Bearing by Dorman®. OD: 1.094". Finish: Dark Gray. Quantity: 1 Piece. ID: 0.593". Dorman’s Clutch Pilot Bearing extends the life of the transmission and helps ensures smooth, reliable shift quality....Direct replacement for a proper fit every timeHigh quality metal construction$24.82 - $29.90
- Dorman®Clutch Pilot BushingGMC P-Series 1988, Clutch Pilot Bushing by Dorman®. OD: 1.093". Quantity: 1 Piece. ID: 0.593". Dorman's Clutch Pilot Bushing extends the life of the transmission and helps ensures smooth, reliable shift quality. Replacement recommended...Direct replacement for a proper fit every timeHigh quality metal construction$4.10 - $7.22
- Dorman®Clutch Pilot BushingsGMC P-Series 4.8L 1988, Clutch Pilot Bushings by Dorman®. OD: 1.093". Quantity: Set of 5. ID: 0.593". Package Type: Box. Dorman's Clutch Pilot Bushing extends the life of the transmission and helps ensures smooth, reliable shift...Direct replacement for a proper fit every timeHigh quality metal construction$11.01
- ATP®Automatic Transmission Modulator ValveGMC P2500 / P3500 Automatic Transmission 1988, Automatic Transmission Modulator Valve by ATP®. When reliability and OE performance is a must, turn to this ATP product designed to provide a precise fit, OE quality, and function. Made of...OE quality at an affordable priceOE fit and function$18.01 - $33.19
- WVE®Automatic Transmission Modulator ValveGMC P2500 / P3500 Automatic Transmission 1988, Automatic Transmission Modulator Valve by WVE®. Length: 2.82". Replace your worn-out or faulty component with this quality replacement from WVE. This product is designed and tested to...Excellent replacement for your worn-out factory partDesigned to keep your vehicle running reliably mile after mile$45.26
- ACDelco®Professional™ Multi Purpose Connector KitGMC P2500 / P3500 1988, Professional™ Multi Purpose Connector Kit by ACDelco®. Finish: Black. Connector Type: 1 Terminal Female. Looking to maintain the top condition of your electrical system? We are ready to help you! Just choose...Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle$16.77Save: $2.57 (15%)$14.20
- Pioneer Automotive®Modulator ValveGMC P2500 / P3500 Automatic Transmission 1988, Modulator Valve by Pioneer Automotive®. Adjustable: 12.5-18 - EDA: 1.75". With Red Stripe. Designed utilizing the latest technology, this product by Pioneer Automotive features premium...Made to deliver reliable service for a long timeRugged construction to withstand harsh conditions$19.27
- Hayden®Transmission Oil Cooler CouplingGMC P2500 / P3500 1988, Transmission Oil Cooler Coupling by Hayden®. Replace your defective oil cooler coupling with this part. Manufactured from premium brass, the part fits most 5/16" transmission lines with 1/2"-20 thread. It is...Fits most 5/16" trans-lines with 1/2"-20 threadCompatible with OEM cooler systems$4.69
- Hayden®Transmission Oil Cooler HoseGMC P2500 / P3500 Automatic Transmission 1988, Transmission Oil Cooler Hose by Hayden®. Covered in Black Hypalon. This part provides a safe heat and oil resistant connecting line between your oil cooler and transmission. Manufactured...Direct replacement for proper fitMade of black chemigum (nitrile)$9.62
- Hayden®Transmission Oil Cooler Mounting KitGMC P-Series Automatic Transmission 1988, Transmission Oil Cooler Mounting Kit by Hayden®. With this product, you can easily install both your transmission oil cooler and electric fan. This product is made of high-quality materials to...For Installation Of Transmission Coolers And Electric FansProvides quick, effective installation of Hayden products$15.56 - $17.69
- Lokar®Billet Adjustable Column Arm KitGMC P2500 / P3500 Automatic Transmission 1988, Billet Adjustable Column Arm Kit by Lokar®. Simplify connecting your column shift to your transmission with a Lokar machined Adjustable Column Shift Linkage Kit. Designed utilizing the...The highest level of quality and craftsmanshipDeveloped with modern technology and innovation$99.95
- Lokar®Billet Aluminum Transmission Shift ArmGMC P2500 / P3500 Automatic Transmission 1988, Billet Aluminum Transmission Shift Arm by Lokar®. Adjustable. Designed utilizing the latest technology, this product by Lokar features premium quality and will perform better than...Replaces factory selector shaft and armAdjustable arm simplifies finding the proper ratio between the shifter and the transmission$79.95
- Lokar®Cable Operated Sensor KitGMC P2500 / P3500 Automatic Transmission 1988, Cable Operated Sensor Kit by Lokar®. Lokar's Cable Operated LED Shift Indicator is designed for the flexibility to mount it in a variety of locations under the hood such as on the...Arm and Ball-Milled Sensor Housing CNC machined from 6061-T6 Billet AluminumProgrammable Solid State Circuit Board within the decoder box$277.95
- Shifnoid®Electric Shifter Solenoid KitGMC P2500 / P3500 Automatic Transmission 1988, Electric Shifter Solenoid Kit by Shifnoid®. Designed utilizing the latest technology, this product by Shifnoid features premium quality and will perform better than advertised. Perfect for...Expertly crafted from premium materialsDesigned to match rigorous quality standards$304.85 - $327.66
- ACDelco®GM Original Equipment™ Automatic Transmission Case PlugGMC P-Series 1988, GM Original Equipment™ Automatic Transmission Case Plug by ACDelco®. Length: 0.25". Designed utilizing the latest technology, this product by ACDelco features premium quality and will perform better than advertised....Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle$8.03Save: 15%$6.82
- ATP®Dipstick Tube O-Ring SealGMC P2500 / P3500 Automatic Transmission 1988, Dipstick Tube O-Ring Seal by ATP®. Location: Case - Electrical Connector O-Ring - Modulator O-Ring - Downshift Valve - Speedometer Gear To Case O-Ring - Driven Gear Fitting O-Ring -...OE quality at an affordable priceOE fit and function$0.89
- ATP®Dipstick Tube SealGMC P2500 / P3500 Automatic Transmission 1988, Dipstick Tube Seal by ATP®. Multi-Lip. Location: Seal - Oil Filler Tube - Top Hat Boot. Inner Diameter 0.5625". Outer Diameter 1.6025". Width: 0.875". When reliability and OE performance is...OE quality at an affordable priceOE fit and function$0.93
- ACDelco®Genuine GM Parts™ Automatic Transmission Filter SpacerGMC P2500 / P3500 Automatic Transmission 1988, Genuine GM Parts™ Automatic Transmission Filter Spacer by ACDelco®. Location: Filter to Valve Body. Designed utilizing the latest technology, this product by ACDelco features premium...Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle$9.07Save: $1.36 (15%)$7.71
Shop By Service Type
- Transmission Fluid Change
- Transmission Oil Cooler Replacement
- Clutch Replacement
- Clutch Slave Cylinder Replacement
- Clutch Master Cylinder Replacement
- Automatic Transmission Oil Pan Gasket Replacement
- Neutral Safety Switch Replacement
- Clutch Fluid Change
- Transmission Mount Replacement
- Transmission Filter Replacement
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1988 GMC P-Series Transmission Reviews
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Posted by Alan (Saint Paul, MN) / August 21, 20212015 Toyota Venza
1988 GMC P-Series Models
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