I have a Super T10 4-speed in my '70 GS 455 conv. and want to change the gear oil. The trans is out of an '81 Z28, can someone tell me which weight gear oil to use and how much I will need? I want to change all of the fluids this weekend before I start driving it again. Thanks, Ken
SAE 80-90. Not sure on the amount. Should have a fill and a drain plug so fill it untill it starts to run out.