Transmission Additives

Transmission AdditivesAt AutoBarn we carry a large variety of transmission additives ranging from, transmission stop leaks, transmission conditioners, transmission flushes, transmission sealers, transmission treatments, friction modifier, transmission protectant, assembly lubricant, transmission supplements, and shudder fixes. Each providing different components to improve your transmission function and driveability by brands such as Lubro-Moly, Lucas, White Shepherd, and Lubegard.
Blue Devil Pro Universal Leak Repair (12 oz)
ATP AT-205 Multi-Purpose Leak Re-Sealer (8 oz)
Sea Foam Transmission & Power Steering Cleaner Fluid (16 oz.)
Lubro-Moly MoS2 Anti-Friction For Gears (50g)
Seals leaks in multiple systems including: power steering, engine oil, and differentials
Our Price: $19.95, 6/$115.50
2 Reviews
Stops leaks in the power steering, transmission, engine, differential, sunroof seals, etc.
Our Price: $13.59
Our Price: $8.99
Our Price: $13.45
Sale Price: $11.45, 2/$21.50
You Save: $2.00
Lucas Automatic Transmission Fluid Conditioner (20 oz.)
Blue Devil Transmission Sealer (16 oz.)
Blue Devil Transmission Sealer (16 oz.) - 6 Pack
Lubegard Transmission Flush (10 oz)
1 Review
Our Price: $14.95
Sale Price: $11.95, 12/$125.52
You Save: $3.00
2 Reviews
Our Price: $11.99
Restores Dried, Cracked, and Shrunken Rubber Seals
Our Price: $63.00
Safely removes varnish deposits and prepares your transmission for new fluid. Safe for all transmissions
Our Price: $14.99
Sale Price: $11.49
You Save: $3.50
Gunk Transeal Automatic Transmission Sealer (12 oz.)
Gunk Trans Medic Automatic Transmission Treatment (12 oz.)
Lucas Transmission Fix with ATF Conditioner (24 oz.)
Lubegard CVT Recharge & Protect Fluid (10 oz)
Our Price: $3.19
1 Review
Our Price: $7.49
6 Reviews
Our Price: $16.95
Sale Price: $15.49, 2/$29.12, 6/$85.86, 12/$171.72
You Save: $1.46
Restores additive components essential to optimal performance of CVTs
Our Price: $13.95
Lubegard Synthetic Automatic Transmission Protectant  (10 oz.)
Lubegard High Friction Modified ATF Supplement (10 oz.)
Lubegard Automatic Transmission Supplement for Ford Applications (10 oz.)
LUBEGARD Platinum High Performance ATF Protectant (10 oz.)
1 Review
Prevents overheating & reduces elevated operating temperature., and reduces ATF foaming and oxidation
Our Price: $13.99
Sale Price: $11.49
You Save: $2.50
Converts ATF into highly friction modified ATF, to save you time, space, and money
Our Price: $15.95
Sale Price: $12.45
You Save: $3.50
Corrects additive depletion problems and converts Dex/Merc ATF to perform like Mercon V ATF
Our Price: $14.95
Sale Price: $13.49
You Save: $1.46
1 Review
Doubles the life of the ATF when added to Dex III and performs 7% better than Dex VI
Our Price: $17.95
Sale Price: $16.49
You Save: $1.46
Lubegard Kooler Kleen Transmission Cooler Flush (13.25 oz)
Lubegard Assemblee Goo Firm Tack Assembly Lubricant (16 oz.)
Lubegard Assemblee Goo Light Tack Assembly Lubricant (16 oz.)
Lubegard Instant Shudder Fixx (2 oz.)
For use in all transmissions including automatic, CVT, DCT and manual transmissions
Our Price: $14.95
Sale Price: $12.95, 12/$144.72
You Save: $2.00
1 Review
Provides lubrication and helps facilitate the assembly process
Our Price: $17.95
Sale Price: $13.95
You Save: $4.00
Great for winter months
Our Price: $15.95, 2/$28.42, 12/$186.00
12 Reviews
Instantly eliminates torque converter lock-up shudder
Our Price: $10.99
Sale Price: $9.49
You Save: $1.50
Lubegard Universal Limited Slip Supplement (4 oz.)
1 Review
Superior friction modifier works in all makes and models including Ford, Chrysler, and GM
Our Price: $7.99, 2/$14.38, 12/$89.88
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  • "Was a good experience overall" (7/20/22)

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  • "Available product, easy order, quick shipping, and excellent product. Highly recommend Auto Barn, and this product!" (7/17/22)

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