
Standard crawl ratio with 4.1 diffs and 5 speed. 37.269
Crawl with Marks Gears 66.42
Crawl with Marks and 4.6 diff gears 76.75
Crawl with Twin cases standard and 4.6 Diff 84.46
Crawl with twin cases and 1 marks gears 155.04
Crawl with twin cases and 2 marks gears 283.99
Crawl with twin cases, 2 marks and 4.88 diff 300.63
I have been putting up with 76.75 to 1 with 39.5 tires and its OK but will be at 300.63 to 1 from here on.

So who is interested $$$$ will be known soon.