![GM 4L80 Stock Spline Automatic Transmission 300M Input Shaft [34670-01] Made from durable 16-gauge steel](https://cdn.shopify.com/s/files/1/0762/0316/3867/files/PCE602.1009.jpg?v=1785226933)
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Made from durable 16-gauge steel
How do they do it
This planetary gear is fully Rollerized
Speedmaster C4 automatic transmission small block to big block torque converter conversion plate
These Speedmaster aluminum water pump pulleys are made from a 356 aluminum alloy that is heat-treated to T-6 specs
GM 4L80 Stock Spline Automatic Transmission 300M Input Shaft [34670-01] Made from durable 16-gauge steelHigh horsepower and hard launches can cause tremendous stresses on the internal transmission components. Speedmaster automatic transmission input shafts can withstand the stresses and the added power.
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