Are all bolt on shafts LSD or can some bolt on ones be non LSD?.

nope, but all standard LSDs are lobro (bolt-on)

some bolt on diffs are open, in case that wasnt clear!

[Edited on 1/8/05 by JoelP]

Mine is lobro and non LSD

Thanks for that. Need to find out if it has a tag then do i.
Ta .

the serial numbers cast on the case will also give you what type and ratio i think its 2 A's is lsd 314 is 3.14 ratio. i've seen a posting somewere but can't remember
tony

the AA and the 362 are written on the tag on the back cover, not sure if its written elsewhere on the diff? never seen it anywhere else anyway.