Dose anyone make A limited slip/trac loc,or any thing like that for the front axle for the ford ranger? I know I checked years ago and no one did then.I have A 91 4.0 5spd 4x4.

best bet is to check with a shop that builds axles. they will be able to tell you what type of carrier you could use

yeah,
ARB
Powertrax Lockrights

http://www.therangerstation.com/forums/viewtopic.php?t=217

check these posts for lots of ideas
http://www.therangerstation.com/forums/viewforum.php?f=15