1981 Chevrolet Corvette Transmission Parts

National has built a reputation as one of the most respected names in the industry. We have offered premium sealing solutions for more than 75 years. Our design team keeps pace with the industry and provides advanced solutions for today’s vehicles.

Product Features:

• Low swell in hydrocarbon fluids
• Design type: spring loaded; multi-lip
• Provides good low temperature capability
• Temperature range: -40°F to 225°F; -40°C to 107°C
• Delivers quality and reliable performance for every type of repair

AT SEAL

Fel-Pro gaskets offer 100% vehicle sealing with application-specific materials to give you sealing solutions with the performance and durability professionals trust

Product Features:

• Meets or exceeds all original equipment specifications
• Application specific design to ensure a perfect fit
• Engineered and manufactured specifically for the repair environment
• Unsurpassed quality you can trust
• Includes all parts needed to complete the repair

AT OIL PUMP SEAL

The B&M Master Racing Overhaul Kit includes all gaskets, seals, bushings and high performance friction materials. No transbrake body gaskets or instructions included.

Product Features:

• Complete High Perf. Or Racing Trans. Overhaul
• Includes Only OEM Valvebody Gaskets
• Instructions Not Included

Value-priced seal meets all cataloged application requirements.

Product Features:

• Brand may vary by location

Product Features:

• Brand may vary by location

Product Features:

• Edelbrock Part # 8026 GM Transmission adapter is for use with 2004R, 700R4, 4L60 transmissions.
• This kit relocates the pin position on an Edelbrock Carburetor when hooking up to a throttle valve style transmission (700R4, 2004R, 4L60).
• The pin location is critical as the TV controls line pressure, shift points, shift firmness, and part throttle downshifts.

AT DETENT CABLE SEAL

When swapping the TH400 transmission into any vehicle, this kit makes installation of the transmission’s kickdown feature a snap. This switch mounts to either a TH700R4, TH200, TH200-R4 or TH350 throttle cable bracket.

Product Features:

• Allows High Speed Cruise
• Cruise In Overdrive
• Prevents Part Throttle Kickdown
• Quick Installation

Permatex Ultra Grey is specified for high torque and high vibration applications. Ultra Grey offers a sensor-safe, low odor, non-corrosive formula and is OEM specified to fit dealership warranty requirements. This high performance gasket maker meets performance specs of OE silicone gaskets and can be used on high torque and vibration applications such as valve covers, water pump, intake manifold end seals ad thermostat housings.

Product Features:

• High torque and rigidity
• Sensor-safe, non-corrosive formula
• OEM specified
• Low-odor, non-corrosive formula
• Ideal for closed spaced bolt patterns

ATP Universal Fit Detent Cables are designed to cover many applications and are no compromise replacement parts

Product Features:

• Includes brackets, grommets, etc to match original
• Fits many GM transmissions
• Adjustable

National Oil Seals & Bearings offer a full line of premium oil seals and bearings.

Product Features:

• Premium bearing design matches OEM specifications
• Precision manufactured using premium-grade steel for outstanding durability and performance
• Crowned raceways and rollers to ensure even load distribution for maximum life
• Industry leading coverage
• Professional technicians know they can depend on National

The purpose of the mount is to support the engine and transmission on the chassis and dampen vibration and noise from reverberating to the rest of the vehicle. Engine and Transmission Mounts are engineered and manufactured to meet or exceed OEM specifications using the latest CAD/CAM engineering process to ensure superior quality, form, fit and function. Only premium quality materials are used in the manufacturing process to guarantee precise performance and maximum durability. Applicable to BUIC 70-93; CADI 76-80; CHEV 65-93; GMC 73-87; OLDS 68-92; PONT 70-89;. Please verify your application.

Product Features:

• MAXIMUM LIFE & PERFORMANCE: Both natural and SBR (Styrene Butadiene) rubber provide good abrasion resistance and aging stability to ensure maximum life and performance.
• MEETS OR EXCEEDS DUROMETER MEASUREMENTS: All rubber material is manufactured to specific Durometer (hardness) measurements based on the vehicle’s application requirements.
• HARDENED STEEL FASTENERS: All fasteners are made of hardened steel with heat treated Grade #5 bolts.
• SUPERIOR BOND: A special Chemlock® bonding agent is used to ensure a superior rubber-to-metal bond.
• HYDRAULIC MOUNT DESIGN: Hydraulic Mounts (applicable where OE) are designed for most front wheel drive vehicles because transverse drive train mounting.
• For Years: 1965-1993
• Weight approx: 1 Lbs
• HEIGHT: 1.85 INCH / 47 MM WITHOUT STUD
• STUD AND BOLT HOLES INLINE
• STUD: M10-1.5, 28 MM
• MOUNT HOLES: 4.0 INCH / 101.6 MM ELONGATED

B&M’s vacuum modulator is fully adjustable, this allows you to tailor your shift points to within a range of 2-4 mph. Comes preadjusted for normal shift points. For TH350 and TH400.

Product Features:

• Fully Adjustable
• Allows You To Tailor Shift Points
• Comes Supplied Pre-Adjusted

Product Features:

• Mid-size and full-size cars, pickups
• GVWR up to 18,000 lbs.; towing up to 3,500 lbs
• Compatible with OEM cooler systems
• Ultrasonically soldered for reliability
• 100% pressure testing to 150 PSI for quality assurance
• High efficiency turbulators

Value-priced bearing meets all cataloged application requirements.

Product Features:

• Brand may vary by location

AT OIL PUMP GASKET

Made from cork/neoprene gasket material which features excellent compressibility and high recovery to create a positive seal.

Product Features:

• High density cork-nitrile rubber blend
• Excellent compressibility and high recovery to create a positive seal
• Excellent Compressibility

Value-priced seal meets all cataloged application requirements.

Product Features:

• Brand may vary by location

Product Features:

• ATP Transmission Seals And Gaskets are exact fit, no compromise replacement parts

Shift Improver Kits – Buick, Chevrolet, GMC, Olds, Pontiac – 1968 to 1981 TH-350 and M38 Application: 1968 to 1981 TH-350 and M38 (for TH-350C use Transpak # 30235) Recalibrate your automatic transmission for optimum performance and extended life! Provides crisp shifts on any stock automatic transmissions. Elimination of soft sluggish shifts, shift overlap, and excess wear on clutches and bands due to slippage. Improves transmission life. Transmission removal not required. The B&M Shift Improver Kit the easiest way to get the stout performance you’ve always wanted out of your automatic transmission – and you get two modes of performance to select from: Heavy Duty, or Street/Strip. It’s our least expensive and simplest to install kit. All you need are a few dollars and some hand tools! In the space of an afternoon, you can turn your transmission into a B&M-tuned unit! Just ask the thousands of satisfied customers that have installed one in their transmissions! Stage 1 – Heavy Duty Firm positive shifts without loss of driver comfort for improved performance in all street vehicles. Recommended for regular passenger vehicles. Stage 2 – Street/Strip Provides very positive shifts for high performance street use or for competitive events. This model is for the enthusiast who wants the hardest, quickest possible shift.

Product Features:

• Recalibrate Auto. Transmission
• Optimum Performance
• Select Your App. Mode
• Improves Transmission Life
• Trans. Removal Not Required
• Downshift At Any Speed
• Great For Trailer Towing
• For Heavy Loads Driving Downhill

AT OIL PUMP ORING

Cable Bracket, GM (Bandit style shifters only) APPLICATION: For TH-400, 350, 250, 200, 700R4, 200-4R with 80797, 80798 or 81050 shifter.

Product Features:

• Shifter Service Parts
• Steel
• Natural Finish
• Sold individually
• Replacement for Bandit shifters

Reverse lockout meets NHRA and IHRA requirements. Includes neutral safety switch, backup light switch, black T-Handle. Fits most 3 Speed applications.

Product Features:

• Base Trims To Custom Fit Floor
• NHRA/IHRA Reverse Lockout Meets Requirements
• Includes Neutral Safety Switch
• Includes Backup Light Switch
• Includes Black T-Handle and Cable

AT BANNER KIT

AT SOLENOID SEAL