9.5 sf axel ??

[bablazer73]

I have a 9.5 semi floater from a 85 3/4 ton I want to put in my plow blazer. Another member has a posi unit from an 88 3/4 ton truck(newer style) I know that the 8.5 axels changed axel splines around that time. does anybody know if the 9.5's did the same? will his posi unit fit my axel?

 

[zcarczar]

If im correct the 9.5" rear axles all have 33 spline axles.

 

[Blue85]

Yes, they are all 33-spline. I put 6-lug shafts from an 88+ into a mid-80's 8-lug version. No problems. The only things that have changed about these over the years that I am aware of is on the ends. There have been different brake sizes, which affects the length of the axle shaft and different lug configurations, which affects the flange, but everything on the diffential is the same.

 

[bablazer73]

great. i am only gonna use the posi. i kinda like 8 lug blazers. look tougher!

 

[Blue85]

</font><blockquote><font class="small">In reply to:</font><hr />
i kinda like 8 lug blazers. look tougher

[/ QUOTE ] Usually are tougher!

Just remember to do a full ring and pinion setup if you swap the carriers. You probably know that already, but just checking.