Reply to "Slip out of 3rd"

Its possible to vary the cockpit stick location without breaking loose the turnbuckle, by sliding the splined end of the shifter rod back & forth in the clamped end at the shifter box. About 3/16" can be gained by removing the squeeze bolt & prying or pushing on the splined end. If a shift-stick adjustment doesn't do it, there's a linkage assembly inside the shifter box on the rear of the ZF. In some cars, a setscrew in there loosens up. There's a rubber plug on the side of the box that when removed, allows a metric allen wrench access to the critical setscrew. I'd refer heavily on a copy of the ZF Overhaul Manual (available from PI, POCA and most vendors) while doing this. And if THAT doesn't do it, consider calling Lloyd at RBT Transmissions and scheduling an overhaul; a synchro assembly may be cracked inside your ZF.