Help! I need a Ross box expert

I have been told the Ross boxes differ between 4cyl and 6cyl models, the gear ratio is different, the 6cyl box is easier to steer. OK, my question is, if I had only one box in front of me how could I tell which one I had?


I'm serious about the boxes, any help will be appreciated.
Thanks; Doug

 

Boy I didnt know the 6 cyl box was that much bigger , Saving that pic to my jeep folder for future ref. Thanks Sink

 

note the different bolt paterns on the covers... best way I know of to id the one you have

 

OK maybe it's too early to see the difference. They look the same to me other than one is a mini-me. Would it be possible to place a ruler across the larger one, so there would be no doubt as to which one I'm holding?

Thanks; Doug

 

that is an old pic, I don't have the 4 cyl box and the 6 is in the $ sink. measure the distance between the bolt heads. the 6 is a square, the 4 is a rectangle

 

Near as I can tell, that's a big YUP, but the length of the worm shaft's are different, at least that's what I heard when I went searching for a new one a few years ago.

 

Thanks, you and your pic's were very helpfull. I was able to figure out I have the smaller 4cyl box. The reason I removed it was due to very sloppy steering. Come to find out some PO, due to the square bolt pattern, was able to put the cover on upside-down, thus no adjustment was possible. It works great now!!!!
Thanks again, Doug

 

Cool, glad it helped. now for the record, how many turns will your wheel do from lock to lock?

 

Mine does about 48 turns! R)

 

OK, seeing you went to all the trouble to help me I went back out to the shop and did the most accurate bench test I could do.
I put the box in a vise and it turned four complete turns stop to stop.

 

Thanks, recorded for future use