87 mazda b2000 5spd rearend

i just picked up a 87 mazda b2000 and i need to know some specs on the rearend like axle size, spline count and housing size and anything else gearing and all
im trying to locate a lsd diff for the truck just need some specs to see which diff is interchangeable with mine
thanks john

somewhere on here is a froum about this i will see if i cant find it

hope this helps

im putting a built v8 in my truck so i dont want to swap a rx7 diff in im trying to give moser specs so they can get me a diff so i need spline count and rearend info on the rearend thanks with the cheap diff info i seen and read the article.... thanks everyone

oh well why not find a posi rearend in the bolt pattern you want and shorten it in width. thats what i am doing with my 8inch with the 302