For the 24 spline rear axles. Honda 200X, 300EX, 400EX and 450R hubs fit. The 300EX, 400EX and 450R hubs will give you about +3" in the rear.

The 4x4 Suzuki LT250F has 24 spline 5-lug hubs.

I have a bastard year 24 spline axle in my 87 as well. And I think the same damn axle in my 88.

I think the LTR, KFX 450 hubs should fit the 26 spline axle, but I'm not positive on this because I only heard from one KFX450R owner that he swapped hubs.