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Ships within 48 hours · Estimated delivery Nov 10 - Nov 15
Speedmaster black-oxide coated chromoly intake manifold bolts are rated at 170
If it has to seal right the first time Speedmaster has what you need
These kits include high-carbon steel plates
Easy swap in
Speedmaster axles are manufactured using cutting-edge technology and techniques
TH400 Extreme Duty Forward Drum & 300M Input Shaft 35-Spline Speedmaster black-oxide coated chromoly intakeTake your GM TH400 transmission to the next level with this premium heavy duty forward drum and 300M input shaft combo. Engineered for high power street, strip, or off road use, this kit addresses the critical failure points of stock components with a focus on strength, precision, and reduced rotating mass.
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