I'm planning on taking my 03 to the strip a couple time this summer
My question in whether to get an aftermarket Differential Cover

http://www.americanmuscle.com/frpp-i...over-9904.html
http://www.americanmuscle.com/mustan...eargridle.html

Or an IRS brace

http://www.americanmuscle.com/cobra-...overbrace.html
http://www.lethalperformance.com/03-...irs-brace.html

What's the "best" option?

 

you cant do both it is either 1 or the other and i would suggest going with the upgraded cover it will be a lot stronger. if you do go with the cover try to get a fore innovations diff cover and if you cant get one then go with the lpw

 

OP,

I've seen more luck changing the whole diff cover, than an IRS brace. I would go with an aftermarket diff cover for strength and because it holds more fluid for better cooling/lubrication. That's the best route to take for some hard quarter mile launches!

Shane

 

Thanks guys. I was leaning toward the LPW cover anyway, but I figured it was best to ask around.

 

I went with the Ford Racing cover, but whichever, the aftermarket cover is stronger than the brace. You'll read strings where people still broke their cover with the brace.

 

I went with Billet Flow IRS brace's .... good luck!