[mrvmax1]

Does anyone have a drawing? I ordered replacement o-rings and I got 2 large and two small. I never saw the two small ones when I took it apart.

 

[tjbeggs]

the two small ones are to seal the screw heads that hold the housing on. next time the best thing to do is take it to you local parts store and get regular round o-rings. the ford o-rings aren't very good. they will only work until next time you take it off becuase they swell when they contact oil. Who makes an o-ring that seals oil that won't stand up to oil??? Oh yeah FORD!

I believe the ones I use are 1 5/8 or something like that. they have worked great and can be reused.