Borg Warner T10

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If you own a Ford Top Loader or BW T-10, you have one of the best manual transmissions ever put in a car. These transmission are still used in Nextel cup cars because of the durability and you would be stepping backwards to put in some late model 5 speed to get overdrive. This is just one of the reasons you want a Gear Vendors for these tranny’s. Not only will you get to keep your bulletproof 4speed but nothing in the car has to change (crossmember, tunnel, shifter and linkage all remain the same). Our kits for the Ford cars are very simple installs handled in just a few hours in your garage or at one of our dealers. No special tools are required and a new 1350 series driveline yoke comes with each kit so your local driveline shop can have the shaft ready by the time you installed the overdrive.

  1. Borg Warner T10 Transmission Parts
  2. T 10 Transmission Identification Numbers
  3. Borg Warner T10 4 Speed Transmission
  4. Borg Warner T10 Transmission

Borg Warner T10 Transmission Parts

Borg warner t10

Once installed you will have a whole different vehicle. Our 28.6% faster cruising gear will have your 4.10s behaving identical to 3.20x on the highway (3.55 would be 2.77). This 28% easier cruise gear will have the engine purring and the mileage up 22-28%. No other modification you do to the car is going to pay you back in resale value or mileage like the Gear Vendors. In the long run it really costs you nothing to own our product and on top of these benefits you are stepping into a whole new level of performance.

It was also an opportunity for Borg Warner to design replacement Super T10's for the Muncie. These 4 speeds offered 9310 nickel gears, had a wide variety of gear ratios, and were available from any auto parts store carrying the Borg Warner parts line. A variation of this Super T10 ended up in GM cars from 1975 to 1983. Knowing what numbers mean Borg Warner might save you a trip to the computer. For example, on a Borg Warner T10, the identifiers T-10 and/or 13-04 should be imprinted on the transmission housing. On a T5, the identifier should begin with 13-52. The casing number on a Borg Warner T19 is 1309and the T18 casing number is 1301. While the “Big Three” American car makers couldn't agree on much during the 50s and 60s regarding engine size, horsepower and rear-end ratios, one thing they did agree on was the Borg Warner T10 4-speed transmission, which they all used in various vehicles at that time. Borg Warner also released that same T-85 manual three-speed in '57. Late '50s and early '60s Corvettes used an aluminum case, while the full-size GM units from '57-'60 used a cast-iron case. GM used all aluminum-cased units after 1960, and all manufacturers used aluminum cases up until 1974.

Hit the button on your shifter for the overdrive before you leave the line and you activate our AutoLaunch circuit. The car will accelerate in 1st and then shift clutchless to 1st-over which is just like you shifted to 2nd on either of the close ratio 4speeds. You can use this clutchless feature on any gear – say you are boulevard cruising in 2nd and want to show off a little – just squeeze the throttle and hit our button. It’s much faster, tirebarking, and only a few hundredths different than shifting to 3rd. In 1/4 mile times you are much faster. The serious strip guys flip the 3-4 sidecover lever over so that 3rd is now where 4th was – then they can shift 1st, 1st-over – doing the entire run with just one clutch depression.

For this reason we ship these kits with our 6speed badges for your car and yet it is far more performance than any 6 speed available. You do not have to be at the dragstrip to enjoy this – it is just a blast to drive. All our kits come with a 2yr unlimited mileage, unlimited horsepower, unlimited abuse warranty. You are under warranty even at the dragstrip. Plus a 30 day money – back guarantee so you know you will be happy with everything about how our kit installs and drives. Gear Vendors is the best you can buy in durability, performance, installation, warranty, operation, and mileage.

For more details on this subject click here.

Call us at the factory with any questions, see the Racing section for some “first on race day” Fords.


Find your transmission and rear gear multiplier below. The Final Drive Ratio shows you how many times the engine turns for one complete turn of the tires. This Final Drive number is also your torque multiplier when in that gear. GEAR VENDORS reputation for being the best is because of its sophisticated planetary construction. This means GEAR VENDORS is the only auxiliary intended as a GearSplitter behind automatics and the nicest to work behind both automatics and manuals. You are able to shift half gears that keep the engine in the power. Any auxiliary that requires you to lift off the accelerator or is not intended to shift frequently is not going to give you this performance.

T 10 Transmission Identification Numbers

There is not room here to cover all the details so call the factory to discuss the full benefits demonstrated on these charts.

T & C FORD TOP LOADER 4 SPEED CLOSE RATIO 2ND GEAR 28 TOOTH
showing clutchess shift options
Axle Ratio
3.083.423.553.734.104.56
Trans RatioFinal Drive Ratio
1st2.327.157.938.248.659.5110.58
1st Over1.805.546.166.396.717.388.21
2nd1.695.215.786.006.306.957.71
2nd Over1.314.034.484.654.895.375.97
3rd1.293.974.414.584.815.295.88
3rd Over1.013.103.443.573.764.134.59
4th1.003.083.423.553.734.104.56
4th Over0.782.402.672.772.913.203.56
T & C FORD TOP LOADER 4 SPEED WIDE RATIO 2ND GEAR 31 TOOTH
showing clutchess shift options
Axle Ratio
3.083.423.553.734.114.56
Trans RatioFinal Drive Ratio
1st2.788.569.519.8710.3711.4312.68
1st Over2.166.657.397.678.068.889.85
2nd1.935.946.606.857.207.938.80
2nd Over1.504.625.135.335.606.176.84
3rd1.364.194.654.835.075.596.20
3rd Over1.063.263.633.763.954.364.83
4th1.003.083.423.553.734.114.56
4th Over0.782.402.672.772.913.213.56

Borg Warner T10 4 Speed Transmission

T & C FORD TOP LOADER 4 SPEED RUG-TOD
Axle Ratio
3.083.423.553.734.114.56
Trans RatioFinal Drive Ratio
1st3.2910.1311.2511.6812.2713.5215.00
1st Over2.567.888.769.099.5510.5211.67
2nd1.845.676.296.536.867.568.39
2nd Over1.434.404.895.085.335.886.52
3rd1.003.083.423.553.734.114.56
3rd Over0.782.402.672.772.913.213.56
4th0.692.132.362.452.572.843.15
4th Over0.541.661.851.922.012.222.46
FORD TOP LOADER 3 SPEED WIDE RATIO
Axle Ratio
3.083.423.553.734.114.56
Trans RatioFinal Drive Ratio
1st2.999.2110.2310.6111.1512.2913.63
1st Over2.337.187.978.278.699.5810.62
2nd1.755.395.996.216.537.197.98
2nd Over1.364.194.654.835.075.596.20
3rd1.003.083.423.553.734.114.56
3rd Over0.782.402.672.772.913.213.56
FORD TOP LOADER 3 SPEED CLOSE RATIO
Axle Ratio
3.083.423.553.734.114.56
Trans RatioFinal Drive Ratio
1st2.427.458.288.599.039.9511.04
1st Over1.885.796.436.677.017.738.57
2nd1.614.965.515.726.016.627.34
2nd Over1.253.854.284.444.665.145.70
3rd1.003.083.423.553.734.114.56
3rd Over0.782.402.672.772.913.213.56

Borg Warner T10 Transmission

Call or e-mail the factory to find out all the options available in your performance application, 1-800-999-9555.