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Tool, Drill Jig, 4R44E, 4R55E, 5R44E, 5R55E, A4LD, Ford

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Price: $189.18
Part Number: TAT-56600-DJ-SX
A sticking governor after rear sprag service or sprag thrust washer failure is a common complaint in late-model A4LD and 4R44E, 4R55E 4.0L units. This is caused by the steel wave thrust washer (located behind the rear sprag inner race) and the bronze scoop washers flexing and contaminating the unit with metal. During fabrication of the bronze washer, small cracks are formed between the bronze and steel layer of the washer. Once in service, these cracks allow bronze particles to flake off from the washer, and the problem is compounded by the flimsy steel thrust washer that it is running against. Sonnax now offers a late-model low sprag update kit, 56600B-01K, that allows these 4.0 cases with worn or loose sprag races to be salvaged.

Features & Benefits

Kit contains a new inner race of through-hardened AISI 52100 steel with longer, deeper cutting serrations to ensure a tight fit after reinstallation.
A sturdy hardened steel thrust washer and two bronze end caps are included and are also available separately for use with 4.0 cases.
The Sonnax drill jig 56600-DJ allows for easy disassembly and installation of the inner race and eliminates the risk of damaging the case.

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