soo long story short i traded a guy my solid for a what was supposed to be an 03/04 cobra rear end! well after taking it apart to put gears in it..its a 28spline 99 cobra rear diff! soooo im curious as to if its even worth keeping it a 28 spline or find a 31spline center section and get new halfs shafts! need opinions guys!
How Strong is the 28spline 99 cobra IRS
- Thread starter BrokeFourSix
- Start date
It's decently strong...I broke 2 axles on Drag radials though.
I broke a halfshaft completly stock.
not what i wanted to hear lol! i have longtubes,gears and a 150 shot! guess i should start looking for 31 spline stuff
I ran it a year later at the track with tongtubes, 4.10s, underdrive pullies, intake, drag radials, and a tune and it did just fine. I think the main reason they brake is due to wheel hop. When i lowered her i never had a problem with the half shafts again.
ahh okay!! ive also heard drag radials is a good way to kill em to! its better to run a full slick on IRS cars..correct me if im wrong!
it will have a brace and bushings...so maybe it'll be some what strong...i dont plan on much track use...just alot of street use!
epper:
Yeah Drag radials kill them. No sidewall flex to absorb shock.
When i had my irs i used launch at 6k but i had the MT ET streets.
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No problems out of my 99 IRS so far...doing just fine on hard launchs and such.
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