Wild Horses, as well as Jeff's Bronco Graveyard carries all models of our non-stock application stainless twin-stick shifters. As for the NV-3550/ZF model. yes, it is specific to the application. Over the last few years everyone's input here has allowed us to make some improvements over the original design.
One thing to consider in regards to this application is that the Advance Adapter kit allows for the re-clocking of the transfer case to three different positions. According to Advance Adapters the top position is the stock position, the feedback that we have gotten seems that most of them are being used in the stock position due to drive-line angle. We have designed our NV3550/ZF twin-stick to fit the stock position. Having said that, the "J" type shifter (due to Ford's shift-rail interface flags) will not tolerate re-clocking as the shift-rails get too close to the shifter pivot (decreasing the range of motion). The "T" type uses a spherical rod-end linkage which is much more forgiving, by just tweaking the the lower end of the shifter (to keep the linkage straight) it can be used in re-clocked applications.
If a customer has a re-clocked "J" type, our recommendation is that the flags be cut off the the shift-rails, holes be drilled in the shift-rails, and a "T" type shifter used.
Thank you for your feedback, and for the 15 years of business,
Jon
