Formula94

The posi is starting to go out, so I will be replacing it before I make any trips to the track this year. I am looking at the Eaton or Auburn Pro Series, but would like to know what would you drag racers recommend? (Other than real rearend, the heads are going in first, then the rear.)
Thanks

Mark98SS

iTrader: (1)

IMO you're fighting a losing battle running a posi in a drag race application. My Eaton posi in the 9" lasted about 50 passes with BFGs before it quit posi-ing. Depending on how long till you do a rear upgrade I'd either get a spool for the current 7.5" rear or a complete used 7.5" posi axel assembly. Just my opinion.

Formula94

If the rear goes out this summer, I will do it then. However, if it holds up through the summer, that will be my next winter project.

xaon

iTrader: (12)

the posi in my 9" lasted through probably 20-30 passes and 2 years of daily driving. I now daily drive a full spool.

SUX2BU

iTrader: (14)

Just take your rear end cover off and weld all the gears and rollers in the posi together. Its free and now you'll just start breakin axles.
THERE IS NO REPLACEMENT FOR A SPOOL>

sikws6

detroit locker is a good option! it stays locked will going straight and unlocks when you turn,better street manners than with a spool my .02

GueSS Who

1.27 60ft with an Eaton here


Dozens of 1.2x 60ft over a 2 year period.

rebersole2

No Problem So Far From The Auburn Pro Series Locker That I Have. I Used It In A Car That Did 1.44 - 1.48 60' Times With No Problem. Now It Resides In The Camaro That Cuts Much Softer 1.65 - 1.70 60' Times. I Have Torn Up Two Mini Spools In The Past And Did The Weld Up Thing For A While. Just Avoid The Trouble The First Time, Do It Right And Forget About It. (unless You Like Spending Your Weekends Off On Your Back Changing Out Broken Carriers).