Guy's took the rearend out tonight and stripped it down,going to take it and have it cut down this week,with just the bare housing from flange to flange it measures like 54 1/8 basically 54in,so with that said if i have it cut to 50in total width flange to flange i should be fine right?Sorry to keep going on about this but just want to be sure.THANKS!

one more question guy's,i'm looking at a couple of different housing ends and i'm thinking about these which would be big ford old style 1/2 billet housing ends from moser,now there is a big ford new style (3.562in x 2.000) and also big ford (3.500in x2.3750 with 1/2in mounting holes)any preference.THANKS!

Finally going to send the rearend to moser today,so if i got this correct i need the rearend to be 50 in axle flange to axle flange correct.THANKS!

That's correct 50" from housing flange to housing flange "bare axle" will definetly work with your wheels 18x12 5.5" backspace.

Thanks!

Most people are running the big ford new style housing ends. Not sure if it matters which ones you use as long as you match up your brakes to the bolt patterns. Will probably be a lot more options for new style housing ends though. Tobin at Kore3 makes brackets for all of the ones you mentioned if you want to use C6 brakes.