Re: OT '90 Bronco tranney trouble

Posted by Vern-MI on August 02, 2005 at 06:27:21 from (207.69.136.204):

In Reply to: Re: OT '90 Bronco tranney trouble posted by Allan in NE on August 02, 2005 at 05:40:21:

That would be an A4LD transmission which was made in Bordeaux France and designed in Mercanich Germany. Those had a problem with the three governor seal rings, which were made of poly-pinko coated cast iron, wearing a groove into the aluminum govenor bore in the rear of the case. The fix was to bore the case out and insert a stainless steel sleeve which effectively rebuilt the sealing surface into the governor case bore.

The other item that this thing was famous for was wearing of the forward clutch cylinder rubber lip seal ring.

In either case they both require a complete teardown and rebuild.

By the way, that transmission started out as a C3 (three speed) in the Pinto in the early ‘70’s and was morphed into what is now the 5R55N, E & W (5 speed).

Follow Ups:

• Re: OT '90 Bronco tranney trouble Allan in NE 06:49:35 08/02/05 (0)

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