First of all, what's up? I'm new to the thread so bear with me for a while until I can ask all of these questions that I need answered from people who would probably know.
#1 Problem: As everybody knows, factory seat belts in the mustangs SUCK!! I want aftermarket belt/harnesses, but would like to keep my leather, stock seats, if possible. Who can I contact to get any, if available???

 

Welcome. If you want to run harnesses then youll need a roll bar or this, http://www.evasivemotorsports.com/me...uct_Code=30012

 

Here's a place (http://www.subesports.com/products/cat/Harness+Belts) but like 03gtmustang said above you'll need something to hook them onto.

 

harnesses on stock seats makes no sense to me. They're not designed for them and they don't support them well.

So, yeah... you'll need a roll bar with harness bar, and a set of good sports seats like Corbeau CR1 or similar. Metal frame seats only. No fibreglass. If you're going to use them, make sure you know how to set them up and wear them properly or you're in for serious injury when you end up needing them. 5 point FTW.

I use corbeau forza seats, Kirk racing roll bar, and RJS 5pt 3" latch lock harnesses. They're a bit of a pain on a street car to tell you the truth. Cam lock are more comfortable and easier to get on.