rygenstormlocke

So I got my parts, but oddly enough I checked my order (hard copy and email) and my Motive Gear box says:

F7.5-410

So, using simple logic, this part number means Ford 7.5 Rear End, 4.10 gears. Oddly enough my hard copy invoice, and electronic invoice say 3.73. Now it is possible that I got 3.73 and the box is wrong.....but I highly doubt that.

Soooooo.....now I am at a fork in a road. I sent an email to mustangtuning.com asking them if its possible my gears where boxed in a 4.10 box by mistake (i think this is unlikely though).

Now, assuming they are 4.10's.....do I....

1. Send them back, and get my 3.73's
2. Keep them and just run with it

The problem I have is I have the install scheduled, if I send them back I have to wait another week without my gears. Right now I am leaning towards keeping them, I knew I would like both gear sets for sure....I just went with 3.73's cause I thought they would work out a bit better.