Is there any way to stack or shim the trac loc clutches to make the trac loc more aggressive on these trucks? I've read tons of info on the D80 about a "restack" but most of it applies to Dodge stuff where they have up to 12 plates/clutches per side. The Fords only have 7 and I can't see any logical way to restack them which would change anything.

Factory Order is:
Side Gear
Preload shim
Clutch
Disk
Clutch
Disk
Clutch
Disk
Disk

I also tried adding an old clutch disk between the last 2 disks but it makes the package way to thick to get the case halves together. Anyone have any input besides the usual "swap out for a locker"?

 

Are you sure it is a "TracLoc" ? not a power-Loc. Either way if you want it to act more aggressive dump the oil, add new and put a lot less limited slip oil in it than is recommended.