As it is not easy to fill the rear end or the gear box, you have to provide a special pump to do it.
IMPORTANT RECOMMENDATION:
After use, don't put it in your kitchen, there is a familly conflict risk
Too hot oil is not good for your engine as well as too cold oil. This thermostat will regulate according to oil the temperature the oil flow going to the radiator.
It is an alum trans shaft (from a Mustang car) cutted and welded to fit to good Cobra length. Then you have to adapt the right slipping yoke (with the special U joint) to fit on the gear box output.