engine angle

[FireSale]

Here is a graphic that shows what Tom is talking about in slightly different words. The results of the output and input angles should be as close to 0 as possible in theory. In practice you need to add some down angle to cancel out the tendency of the differential to try to wrap up the springs under launch load. I've read 4 degrees down for the pinion but I don't know how bars like Calverts cancel that out.