And on another note, i set 2 of my open carriers up side by side with the SG unit and the ring flange on all 3 are different heights. the SG being about 1/4" difference from the one that came of of the housing I'm using.

Hmm..

Post a pic of them side by side. Should only be two sizes IIRC. When you get into the 4.10 ratios and above the pin will need to be a notched one to get it past the ring gear.

Here are all 3 that I have. all are sitting flat on the bearing snouts, not at all on the bearings.

Between the SG unit and the open 2.71 unit that came in the housing I am using, there is 7/16" difference exactly.

Between the 2.71 open and the later model unit I have, there is 1/16" difference.

When I got the later model, it had the 3.55 gear you see on the SG on it, i bought it from a dealer tech who said he had it in the rear of his 73 Dart. I know for sure that 3.55 will not fit on that 2.71 open carrier because I tried to test fit it..no dice. picture attached

all 3

the 3.55 is a bit thicker than the 2.71 so I'm wondering if the difference is offset with that in mind. But I hear of people getting a 2.45 SG carrier and having to use a spacer..which seems, backwards to me judging by what I have here, and the fact gears are thicker as they get numerically higher

I may be wrong but it appears that the sure grip carrier you have is the 2.45 ratio one. Someone correct me if i`m wrong.

You all maybe right, I typed in that part number on the diff on Google and found this post:

http://www.forabodiesonly.com/mopar/showthread.php?p=672610

Looks like I wasted my cash on something useless. Who'd run a 2.45 SG these days?

Yeah most guys throw those away, me on the other hand I would love to find one for my dakota Get both tires turning in the snow and blow off some tq and lower the highway rpms too.

if you want it MSG me.