Sonnax 34500-Z, 4L80E / 4L85E / TH400 Front And Rear Unit Endplay Shim

$ 10.00

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SKU: SX 34500-Z, CC S34252SK, a18 rb b12 Categories: , , Tags: ,

Description

Sonnax 34500-Z, 4L80E / 4L85E / TH400 Front And Rear Unit Endplay Shims, 10 per bag

It is often difficult to reduce front unit endplay on GM TH400 or 4L80-E and 4L85-E transmission units with excessive spline wear.
Normal component wear allows excess forward drum and direct drum travel. This travel or also called “free-play” reduces sealing ring life. These transmission units are limited on the thickness of pump shim material that can be added. Excessive shimming at the pump will push the forward drum off the rings and result in a burnt forward clutch.
But Sonnax offers .010″ thick front/rear unit endplay shim 34500-Z that can be stacked under the sun gear bearing race.

  • By lifting the sun gear, the drums are also supported and front unit endplay is reduced.
  • The shim can be installed between the sun gear thrust bearing and the rear internal gear during lower unit assembly.
  • Updated design which fits all model years

  • Material: Steel
  • Tang Count: 3
  • Inner Dia.: 1.165″
  • Thickness: 0.010″
  • Outer Dia.: 1.940″

Transmission Fitment:

NAME: YEARS:
THM400 1965 – 1992
4L80-E 1991 – 2009
4L80-E-HD/MN8 2002 – 2002
THM-R2/MT1 1991 – 1991
4L85-E 2002 – 2009
3L80 1992 – 1993

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Additional information

Weight 1 lbs
Dimensions 6 × 6 × 5 in

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