92 surf axle code ratios don't add up?

[snowboardonsnow]

I was going to order a locker but I looked at my axle codes and it apears I have a 8" 4.556 4 pinion open diff in the rear and a 7.5" 4.786 LSD in the front?

That doesn't make any since to me, why would Toyota install two different ratio gears? As well I have never heard of a LSD for the front.

Can any guru decode this for me?
It's got a 2l-te and is a SSR limited if that helps.

 

[Mudder]

You have a A343 transmission and a G254 axle code, which is correct an 8" 4.56 4 pinion open diff.

 

[snowboardonsnow]

You have a A343 transmission and a G254 axle code, which is correct an 8" 4.56 4 pinion open diff.

Agh, that makes since , after all it says trans/axle.

Thanks Mudder, time to order up another Aussie and slip it in.