Anyone know which Ford had 25 spline 100mm Lobro CVs?

[Noccer]

I am struggling to find replacement CVs for my 1991 Marcos which has a Ford IRS - it would help if I could work out which Ford has these joints. 100mm bolt on Lobros, 25 spline 27mm diam shaft (same both ends of shaft). I think its a Sierra 4x4 or Sapphire, and will have disk brakes, but beyond that have no idea. If I could identify a single car model and year that has exactly these then it might help.
Steve

[Gareth350]

Is the 25 spline the internal (inner end) or the external (outer end)?

[Noccer]

These are rear drive shaft CV joints that are located on each end of the shaft by a couple of circlips. The inside of the CV joints is 25 spline, and so (of course) is the outside of the drive shaft that they fit on. I have no idea what the splines are in the rear wheel hub, the wheel hubs are fine so I am not dismantling them - they are disk type hubs. I have just unbolted the CVs via the Torx either end and removed the problem driveshaft complete - and it ain't well ! One end is sloppy, and the other end is notchy and stiff - even though the grease is perfect. But they have done 25,000 miles, so maybe that not too bad.

Steve

[Gareth350]

According to my driveshaft book at work, the Cossie uses 23 or 28 splines.
The Sierra 2.9 RWD & 4X4, 1988-93 uses 25 spline joints, so i think you could start with those. Body width for both inner & outer joint is 100mm.

Hope that helps fella.

[Noccer]

That is very helpful. I think the 2WD had the larger (7.5") diff, and as far as I can tell those diffs generally have the larger 108mm flange couplings, so the safer bet when they say "what car is it off" is to say the Sierra 2.9 4x4 (designation XR4x4?).
Thanks, Steve

[Gareth350]

Yep, i'd say go for the XR4x4 joints.
No probs mate.