I have a 87 F250 with 6.9 diesel and C6 transmission. A few years ago it lost 2nd gear. So I took off the pan and valve body to find the band was loose and the wedges fell out. I put it back to together and adjusted it and it worked fine until now. It lost 2nd again so I got back in it to find the band is worn out and out of adjustment. So, I need to replace the band and I understand I need to remove the transmission to do so. Is the band for the diesel C6 transmission different than a standard C6 band? Should I get the Kevlar band I see advertised? Other than a front and rear seal and the band, what other parts may I need to need to do this job?