Hmmm... and just how long has Cat been manufacturing Combines? Oh, wait a minute, THEY DON'T. Klaas builds them. CaseIH and IHC before has been manufacturing combines since 1915. McCormick and Deering merged in 1902 to form International Harvester Corp.
Actually, they run faster when you shut off the Mud Hog.
Mud Hog - Home Page It puts more fluid into the main hydrostats, instead of siphoning some off to the rear hydros.
Yep, I know alot about yellow combines, I've been working on them since they came across the ocean. They are "built" by Claas. They are powered by Cat and are repaired by Cat technicians and sold by Cat salesmen. They are now being put together for the most part on American soil in Nebraska. If you travel overseas, you will see that Claas is the largest seller of Hay, Forage, and Harvesting equipment, and the "prized" JD and Case IH are considered junk, by Europeans.

I never said Cat made combines, I just said real combines are yellow, have tracks and say "Cat" on the side.
Now, on at least some Case IH's, if equipped with a "Mud Hog" the IH hydro will stroke twice as far in 4X4 to keep ground speed the same. JD and Cat for the most part travel speed will be cut in half in 4X4. Now, if you trick the electronics on a Case IH to make it "think" its in 4X4, the hydro will stroke farther, only powering one hydro motor, making ground speed in high gear fast enough to be scary.
I did no intend this to be any argument.

Enough guys (Twilkening and Bmoeller) on here know I work on Cats, and I'm not out to make anybody mad, just funnin'. My father has went away from Case, Deere, and has a machine shed full of yellow Iron. The first one was bought way back in 94, and is still our large tillage tractor. Claas has been around for a LONG time, since the early 1900's too, I could look up the exact date if you want.
Wow, this topic got off track quickly, I'm sorry for being the cause of it. It's nice to see I'm not the only one working the crap out of my first gen. I'd say, I'd be intemidated by that load. I'm sure my truck would pull it, but I'd rather not.
Michael