Inferno GT guys...

[SixVi6-Camaro]

I tried adjusting it, but the adjuster screw is already tighten in all the way...
I always thought on most two speeds that you tighten the screw for a later shift point.
Or is it not normal and I should be backing out the screw to make it shift later?
I think maybe something else it wrong, or the SH .28 just has too much torque, I dont know....lol

Thats just the 2 speed. I had mine adjusted to the max and it still shifted way early.

I've given my 2 speed several tries but I found several problems with the 2 speeds durability. the pin pressed into the spur gear that the 2 speed clutch hits to engage 2nd gets worn eventually it will actually wear through and you will loose 2nd gear. another problem is the bushings that center the 2nd gear on the shaft. They wear in an oblong shape due to the constant unbalanced state of the 2nd gear spur with the steel pin in there and the hard engagement of the 2 speed always on that one side. I believe this is why mine kept striping 2nd gear but not completely just around one edge. It would probably be fine if they would have 2 pins in there opposite corners of eachother. Then at least the gear would be balanced and the 2 speed clutch would have 2 pins to hit and not wear soo fast.

I've put mine back to a plastic spur gear center diff for good now. I ran that setup for god knows how many gallons on my Landmax 2 and thus far put about 3/4 galon on it in once day on my GT with no failures.