Went for a ride today and have come to the conclusion that once my cab is completed and the heater is installed,I'll have to try to figure out away too stop the cold air comming in through the lever's. My question to anyone who has installed there heater is have you figured out how to stop the cold air comming in around them. I have some idea's but just wondering if anyone has it figured out already. I've already closed the gap around the brake and gas pedal.I accomplished this by unbolting and removing both pedals then sealed the gap with silicone.Any air leakage anywhere defeats the purpose of having a heater,so I need to stop all cold air leaks that I can.