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Powerglide, 200-4R, TH350, 4L60 (700-R4), 4L60-E; Muncie M20, M21 & M22 with 27-tooth spline; Saginaw 3- & 4-speed
Sonnax T2-3-4911HP performance forged steel slip yoke is an excellent upgrade over factorystyle transmission yokes, adding strength and durability at an affordable...Read More
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Sonnax T2-3-6081HP performance forged slip yoke is an excellent upgrade over factory style transmission yokes, adding strength and durability at an affordable pric...Read More
Sonnax T2-3-12051HP performance forged slip yoke is an excellent upgrade over factory style transmission yokes, adding strength and durability at an affordable pri...Read More
Sonnax T2-3-12081HP performance forged steel slip yoke is an excellent upgrade over factory style transmission yokes, adding strength and durability at an affordab...Read More
Sonnax T3-3-6081HP forged chromoly performance slip yoke is an excellent upgrade over factory style transmission yokes, adding strength and durability at an affor...Read More
Sonnax T3-3-4281HP forged chromoly performance slip yoke is an excellent upgrade over factory style transmission yokes, adding strength and durability at an afford...Read More
The actuator feed limit (AFL) valve in GM 4L80-E and 4L85-E units has a large reaction area and is greatly affected by side loading, which wears the valve body bor...Read More
Sonnax external spline clutch plate GM-CP-2 with two solid HTE frictions bonded replaces those in related multi-plate performance converter kits referenced below.
Sonnax internal spline clutch plate GM-CP-1 with one solid HTE friction bonded replaces those in related multi-plate performance converter kits referenced below.
Powerglide, TH 200-4R, TH 350, TH 700-R4, 4L60-E, Muncie M-20, 21 & 22 with 27-tooth spline, Saginaw 3- & 4-Speed
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The versatile GM 245mm core allows builders to assemble a high performance converter with a variety of stall speeds and torque multiplication rates. The weakest pa...Read More
Sonnax dual-bolt front cover GM-CC-5 is fully machined and has front cover bushing installed.