I am not the OP but

About a month ago my rebuilt tranny started slipping like a b@#$h.
Lasted about 60,000kms.
Getting it rebuilt locally,I don't think so,getting a ZF manufactured unit? Maybe.
If none are available in our area,I will drop and rebuild it myself.But it will have to wait until spring.

My Indy stopped getting them rebuilt. He had someone local who was good. Now he only does the ZF remanufactured units. It's a little cheaper, much quicker ,the overall quality is better and the warranty is better.

Definitely a good way to go in the world of transmissions.

First one was replaced under CPO at about 75k miles. It had an intermittent slip that occurred once in a blue moon. The second one started slipping regularly at 133k.

I am having a hard time finding a ZF rebuilder in southern NY. Any suggestions?

Contact these guys they are a distributor of ZF remanufactured Transmission:

Go-powertrain wholesale transmissions and wholesale engines in Virgnia

Shame that you aren't in the UK : BMW X5 4.6is E53 ZF 5HP24 automatic gearbox transmission 5-speed #528781 | eBay

Phil

Question for RRPhil,

Would the 4.6is larger torque converter/trans be a "bolt on" swap for the M62 4.4 E53?

Curious for when my trans and/or TC fails.

James I believe the ribs in the bellhousing differ between the 4.4 and 4.6is V8s in order to accommodate the larger Torque Converter of the 4.6is.

That’s right, the radial stiffening flanges cast into the bellhousing have to be machined to provide adequate clearance.

http://i260.photobucket.com/albums/i...ps1a6216f4.jpg

The 4.6is bellhousing part no. is 1058 322 020 and the 4.4i is 1058 322 016 but they’re made from the same casting.

I think it’s unlikely that the K-factor characteristic of the 280mm L51 converter would be a good match for the smaller engine, for which the F38 260mm converter was designed.

http://i260.photobucket.com/albums/i...ps8c1dd059.jpg

Phil