Reply to "RBT Transmission"

bosswrenchMember

Tyler, if your dash-1 (what Lloyd calls a dash-1.5 'transition ZF', made from a special Pantera-type diff case and a Mangusta transmission) actually has 'Goose ratios, the R&P was 4.50:1 and redline at 6000 in 5th was 135 mph. So if true, just changing the 5th gear-pair won't put you where you apparently want to be. You'll need the late 4.22:1 R&P gear$, too. You should check what you actually have; this (besides almost non-existent special parts availability) is why we say the dash-1.5 ZF belongs on a shelf somewhere if you actually drive the car much.

In 1970, there were TEN (10) ZF gear ratios published as being factory-available from ZF, with part numbers. Today? Who knows- or could afford them? Lloyd @ RBT has been known to make custom gears for some owners, but after about 40 yrs as a one-man show @RBT, and the ONLY source on the planet of new ZF parts, he's likely getting tired.

7/3/181:33 PM

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