shift problem - crunch into 5th gear

danegrey

need some friendly advice, after the recent night of tracking and using 5th gear. (Road Atlanta makes use of 5th gear. )
I now have grind/crunch/noise going from 4th to 5th, or 6th to 5th.

recently had the transmission fluid changed to Redline MT-85.
Also looking for a new short throw shifter, the Stillen, gets loose, (its not a solid piece of metal, uses a bushing)

So options Transmission
-- Take to dealership and see what they say
-- any others..

Options for short throw shifter for now
- Torque Solution Short Throe Shifter
- B&M Presision Manual Sportshifter
- Coolerworx Short shifter - looks good, not sure if it can be found in USA
- TWM Performance shifter - no longer made..
- still looking

Thanks for the help

__________________
Lots of Changes
the Z needs to be driven and driven hard for the car lives for it