Differential Fill Plug Where Is It?

Fox1809 said
I recently purchased a 1976 Dart Sport with a 318 and 4 speed manual transmission. Differential is leaking fluid on passenger side where the axle tube enters the differential. Will try to stop leak with JB Weld SteelStick epoxy putty. Need to refill differential but I don't see any fill plug on the diff cover. There is not much space between diff cover and gas tank. Felt top of diff cover and there does not seem to be a fill plug on the diff cover??
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I doubt you will get the leak stopped with JB Weld. Are you sure that's where the leak is from? If so, it may have twisted the tube in the housing. About the only real fix will be welding the tubes into the housing.