How much oill and what grade (hot here) for my ac 130 tranny.

I'm not sure of year--make--model? A c6 sounds like a ford.
I like to change tranny fluid simultaneously and under pressure. With older vehicles if fluid was drained by removing the tranny pan, especially on older vehicles, I've seen trannies that shifted fine before, but after, it wouldn't shift at all cold or hot. It took a while for the fluid to recirculate like it should, on older vehicles.
Some of the others may have a better answer?

The rear end will be to hot to touch after driving but if it is really hot (like cannot get the finger anywhere near it )then the problem will be in the diff . Possible pin ion bearings are under excessive preload by nut using a new spacer under the pinion flange or attempting to remove back lash at the pinion flange by tightening up the pinion nut. Excessive oil and the wrong grade of oil ( ordinary diff oil in a LSD diff) or running one side tyre at a different profile height to the other. The popping noise may be oil burning off ( like fat in an overheated fry pan)

check engine specs for the area you are operating in as the viscosity will determine the correct grade of oil ie cold 5-15 sae or 20-50 hot
the same applys for trannys and diffs but the sae rating will be higher.

If you are in a fairly hot climate like Australia or Africa a good general diff and gear oil is a 80-90 grade. You cant go wrong with Castrol. By using a fairly heavy grade like this you give better anti wear protection.

look for large hexagon drive plug its on the outside of box about halfway up. either close to diff casing or on front of box closest front bumper probably 14mm hex drive

mcdevito75, The tranny has a front pump to pump fluid back and forth to the torque converter, a seal must be leaking fluid into the diff. also the diff, has tranny fluid in front wheel drive cars so tranny fluid in the diff. is normal, Tranny will have to come out to check that front pump, or fron tranny seal.

I had a similar problem with my ford 1/2 ton pulling a trailer on a grade against the wind on hot day. thought I completely fried the tranny. Let it cool off, continued the trip and drove the truck for years with no more problems. Can't explain how your dip stick was dry however. The dipstick should have been wet with foamed trans oil.

yes there are ,transmission fluid dipstick is on drivers side near starter,diff is on passenger side. if you just drained the pan the trans should take about 4 quarts of fluid,diff will take just about 1 quart of 80-90 w

have your transmission checked by a professional, It sounds like you have a shift solenoid going. Had something similar on a van. I don't know where it is on your vehicle so I don't know how deep into the transmission you may have to go.