Posi info needed

statehedgehog · 06-12-2006, 11:03 PM

I have an 8" posi that uses the block and springs set-up as the locking diff. My question is do i have to use the ford posi additive to get good lock-up. The person who set it up said I could use Lucus gear oil and that would be enough. Needless to say I am not getting good lock-up all the time. Any help would be great, this is not my strong suit.

Gearhead999 · 06-13-2006, 07:06 PM

The additive will make the lock up a little looser. It allows slippage. That's how it reduces chatter.

06-12-2006, 11:03 PM	#1
statehedgehog Registered Member 65 Mustang Join Date: Mar 2006 Location: Maryland Posts: 11	Posi info needed I have an 8" posi that uses the block and springs set-up as the locking diff. My question is do i have to use the ford posi additive to get good lock-up. The person who set it up said I could use Lucus gear oil and that would be enough. Needless to say I am not getting good lock-up all the time. Any help would be great, this is not my strong suit. __________________ 65 Mustang, Laser Red, modified 302, 3:80 posi

06-13-2006, 07:06 PM	#2
Gearhead999 Registered Member Join Date: Sep 1998 Location: Oviedo, FL Posts: 992	Re: Posi info needed The additive will make the lock up a little looser. It allows slippage. That's how it reduces chatter. __________________ "Support our Troops" Dave 1968 Cougar 2004 Thunderbird 2007 F150 Harley-Davidson, SuperCrew 1986 LTD 1997 Ranger 1992 Honda Civic

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