This is a small shoulder late 1960's F100 28 spline 9" diff These late 60's diff are a lot shorter than the later F100's The small shoulder style of housing is the same style as used on XY Falcon GT diffs It is 61 inches wide axle flange to axle flange The housing is nice and not all pitted or damaged. This diff is only a 1 1/4 inches wider than an XR to XY diff. You could get the axles redrilled to Falcon pattern It could be used in a HQ to WB Holden at this length Great for that Hot Rod project as well
