I'm putting 120 studs onto my 98 ZL500. It's just a stock .75 track with .875 studs. The stud manufacturer said I "HAD TO" get tunnel & heat exchanger protection. I talked to a Cat dealer and they said I don't need it as the heat exchangers in the tunnel are over the track windows so no chance of studs hitting them. Another dealer said I needed something at the front of the tunnel. Any advice?