• 4L80-E
• 4L85-E
• TH400
• In 4L80-E units, part can be used in either early or late-model drums.

Wear at the direct clutch drum bore in GM TH400, 4L80-E and 4L85-E transmissions allows 3rd and Reverse apply oil to exhaust. This oil leakage can result in direct...Read More

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• 200-4R
• 4L80-E
• 4L85-E
• TH200
• 4L80-E/4L85-E: Fits OD planet/fwd drum; 200: Fits front internal gear-to-carrier

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• 4T60-E
• 4T65-E
• Fits ’94-later 4T60-E. Does not fit 4T65-E Geartronic® or Tapshift® units.

GM 4T60-E and 4T65-E shift valves have changed materials over the years, starting with steel, changing to silver-colored uncoated raw aluminum and finally anodized...Read More

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• 4T60-E
• 4T65-E
• Fits ’94-later 4T60-E. Does not fit 4T65-E Geartronic® or Tapshift® units.

GM 4T60-E and 4T65-E shift valves have changed materials over the years, starting with steel, changing to silver-colored uncoated raw aluminum, and finally anodize...Read More

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• 4L80-E
• 4L85-E
• TH400
• Updated 3-tang style shim fits all units, including '97-later 4L80-E and 4L85-E units.

It is often difficult to reduce front unit endplay on GM TH400 or 4L80-E and 4L85-E units with excessive spline wear. Normal component wear allows excess forward a...Read More

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For roller bearing tail housing; TH400, 4L80-E; Powerglide with 32-tooth spline; G-Force GSR manual transmission

Slip yokes found in many common applications run on a bushing inside the transmission tail housing. High-horsepower builds often use a roller bearing instead, so u...Read More

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• 4L80-E
• TH400
• For output and reaction planetaries, fits all TH400 and '98-earlier 4L80-E with .750" wide pinion gears.

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• 4L80-E
• 4T65-E
• TH400
• For output and reaction planetaries, fits all TH400, 4T65-E and '98-earlier 4L80-E with .750" wide pinion gears.

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• 4T60
• 4T60-E
• This kit will replace the 1-2 or reverse servo in 4T60 applications. In the 4T60-E, this will replace the reverse servo only

Normal operation takes it toll on the 1-2 or reverse servo bore in 4T60 & E units as repeated oscillation eventually wears or scores the bore. Sonnax has desig...Read More

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• 245mm LU (3T40, 3L30, TH200C, 4T60-E, 4L60 & E:S-10 only)
• 6L80, 6L90 (300mm)
• Converts GM 245mm LU (3T40, 3L30, TH200C, 4T60-E, 4L60 & E:S-10 only) converter cores to a 36-tooth spline for use in 6L80, 6L90 300mm applications

Sonnax special high performance inner stator race GM-HR-18 can be used to convert  GM 245mm LU (3T40, 3L30, TH200C, 4T60-E, 4L60 & E: S-10 only) applications t...Read More

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