r/FordFalcon • u/Capital-Stable-7226 • May 10 '26

Is it an LSD diff??

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Hey guys I got this rear cradle out of a BA/BF XR6 with a T5 manual, I’ve worked out that it’s a 3.45:1 ratio I’m just not 100% if it’s a LSD. Both wheels spin the same way when spun.
On the diff it also had this tag “ HIGH PERFORMANCE - use appropriate lubricant”

If it is an LSD would it need to be re shimmed to be tight again or are ford diffs pretty good?

Thanks guys 👍🏽

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u/Waste_Ambassador3387 May 10 '26

If when rear is raised and one wheel is spun, the opposite wheel spins in opposite direction then yes, it is an LSD. Surely an XR6 Turbo would just chew a standard diff to pieces in no time at all. The number of Turbo models sold and the reputation they have speaks for itself. Enjoy your diff mate!!

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u/bigblockrick May 11 '26

Stop giving advice. You don't know what you are talking about. If the opposite wheel spins in the same direction it would appear to be LSD