Sounds like the 420 transmission was rebuilt by your equivalent of AAMCO. There must be a ZF specialist house in Sydney run by a crusty old Austrian or Czech. We have the likes of Peter Schmid (MZF-Bayer Transmissions) in this area. Who would you rather have rebuild your IP; an MB dealer or a Bosch shop?

Have you heard of ATA (http://www.autotransaustralia.com.au/index.php)? They claim to specialize... oops, specialise in ZF boxes. Or are you already a victim?

Sixto
87 300D