Tricky Ford drivetrain question

[Fast Hampster]

Hey everyone, it's been a while I haven't done a lot to my truck lately, so there was generally nothing to tell you all about. I will have some update with pictures this spring probably, and I will post it here Meanwhile, I have 2 questions and I do need your help badly.

The truck is '93 Ford F150, M5OD, RWD, 4.9L.

Question #1 - How can I find out the gear ratio in rear differential without removing rear cover? I don't have any tags left on it, and axle code on a sticker is "12". I googled for it and it seems like it's not the right code for F150 to have there. Maybe there's someone who knows what it could mean?

Question #2 - I've stumbled upon '82 Bronko 5.0 Auto in here, so, since I'm thinking about converting my truck to 4x4 - what's the chance that T-case will bolt in? Also, is it possible that gear ratios in my truck and that Bronko will match, so I'd only have to replace a front end? And if they differ (which seems more probable to me) - will that whole thing be drivable, if I'll keep my manual gearbox?

 

[07FX4Chick]

Hey everyone, it's been a while I haven't done a lot to my truck lately, so there was generally nothing to tell you all about. I will have some update with pictures this spring probably, and I will post it here

I have no answers to your questions but you have 3 huge boxes of Ford Truck parts in my garage, waiting to be shipped. If only we could get around those damn Russian customs, you would be busy working on that truck!

 

[Fast Hampster]

Or, more likely, I'd be buzy with posting pictures here

 

[azmidget91]

there should be a sticker on the driver door jam that says the gear ratio, not sure about the t case but it should bolt up and chancces on the same gear ratio is about a 30% chance but possible

 

[azmidget91]

also if that sticker is gone too you can do this

http://www.5speedtransmissions.com/determine_gear_ratio.html

 

[Fast Hampster]

there should be a sticker on the driver door jam that says the gear ratio, not sure about the t case but it should bolt up and chancces on the same gear ratio is about a 30% chance but possible

The sticker is there, but it reads "axle 12", though it's supposed to be 18 or 19

 

[Fast Hampster]

also if that sticker is gone too you can do this

http://www.5speedtransmissions.com/determine_gear_ratio.html

thank you very much for the link, i'll do as described