actually, the 7.5 rear end in the 05+ mustangs can easily handle 300 to the ground. i would say anything more than 450, get the 8.8, otherwise, its not necesarrily needed
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2007 Satin silver 4.0-"Sadie"- Dual Pypes Violators, JLT CAI and 93 bama race tune, motive 4.10 gears and FRPP T Lok BEST E.T.- 14.485 AT 94.1
1985 Regatta Blue 'vert 5.0 LX-"Sally" 87 5.0 motor, Holley 600 4bbl carb, edelbrock high rise intake, MSD ignition, 1.7 Roller Rockers, underdrive pulleys, A/C and smog delete,BBK O/R H-pipe, flowmaster American thunders. transformed from a 3.8 to a 5.0!
The people that post here are INFINITELY more knowledgable than I, (that's I love this forum) but what I can pick up from lurking about is what you've heard..
Your Stock rear end, though not ideal, would probably hold up.
lol it will hold, only because you wont have enough traction to break anything.
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Full length subframe connectors, Tociko HP shocks/struts, Steeds CC 3 bolt plates, Steeda bumpsteer kit, Eibach Prokit, 8.8 rear ends w/ 4.10 gears, 93 Octane Tune, BBK CAI, MAC Long tubes, catted bbk H pipe, MAC catback, ASP 25% UDP, Rear seat delete (custom ABS plastic with black carpet), JMOD, and more to come.
V6 Supercharger 
