[trukman1]

My '88 K5 8.5" 10-bolt has 28-spline rear axles and so I'd think it has 28-spline fronts as well.

Later Gm went to 30-spline axles in the rear.

My question is did they have 8.5" 30-spline front axles as well?

I tried researching internet but can't seem to find anything on this.

Any ideas?

Thanks in advance...