Lol, $50 is a bargain dude. If you have found somewhere you can get good diff fluid and friction modifier for cheaper, post a link because I need to do both diffs in my truck soon.
2000 Mustang GT Steeda #0048 34k miles. 99 Cobra 4V swapped, FTBR IRS swapped, exhaust, tuned by James Gordon.
Just because I give you advice, doesn't mean I know more than you. Its just means I've done more stupid ****.