Thanks for the detailed response...makes perfect sense.
Any idea on retailers of the DuraGear?
G'day All, Shaunp, bigal,
Found this old post about Borg Warner T5 WC transmission fluid last night and I'm just wandering if there is any updates!
I have the ex John Chapman 68 Mustang fitted with 89 Mustang GT engine and gearbox.
I've lost contact with John, I'm not sure who had it before John, it used to have rego, PC689.
It is confirmed a world class by the part number 13-52-066-919 and torx head screw above reverse switch.
I only looked into the gearbox looking for the torque capability as on the dyno I have 520ft/lb.
Last night I panicked reading Borg Warner advised it should have ATF, because I knew it had gear oil in it!
I changed gear oil with gear oil when I bought the car a few years ago!
Currently have Penrite Progear 75W- 85 GL4 in it!
Thanks in advance for your comments and time.
Cheers Phil.