How To ID a Lip Vs. Rope Seal Pan?

[IamScotticus]

Is there a difference in oil pan rear gasket surface between the pre-Crossflow rope seal and later Crossflow lip seal pans?

[anduril3019]

The semi-circle sealing surface (say that three times fast!) at the rear of a lip seal pan is approximately 5" diameter, on a rope seal pan it's about 4" dia., very roughly speaking. I don't have a rope seal to measure, but it's significantly smaller. 

[IamScotticus]

Thanks 

[SENC]

I'll grab a picture side-by-side in a bit when I get to my shop.

[SENC]

I forgot to get measurements, but feel free to point out what you want measured and I'll gladly get then for you.

 

[IamScotticus]

3 hours ago, SENC said:

I forgot to get measurements, but feel free to point out what you want measured and I'll gladly get then for you.

 

Thanks. That helps. 

Just out of curiosity,  on the pre- xflow, are the front and rear journals the same size? They look close.

[SENC]

I'll grab some measurements in the next couple of days, but going on recollection I'd guessnthe rope seal side is 1/2-3/4" smaller than the other end. 

[SENC]

I was off - about 1" difference.