shift knob ?

[lil red]

i bought a new shift knob, but the hole is the wrong size(meant to be a jockey shift for a motorcycle)
does anybody have any idea on the size i should drill it to and what else i should to to secure it(it has set screw holes,but no screws)

also, is the leaver on an 854x4,(2.8), and an 884x4(2.9) the same size?

im also makeing one for my 85, an ols 8 ball
but this one is for the 88

 

[Chris.S.]

Can't tell ya what size but if you're ok ith never being able to take it off again use PL400 construction adhesive.