I would agree!!!! LOL!
4.10's for a stock MODULAR powered stang with a few basic bolt ons, 4.30's for the MODULAR powered mustang that has heads, cams, intake!.... or for the hardcore guy!! :)

I know my3.73 install cost me $1700 but that also included 2 new axles ,a trac lok rebuild and weld in sub frame connector install as well.

Just for fun I asked Steeda for a quote. They came back at $1600. Seriously that's ridiculous

I hear those two words in the same sentence a lot when it comes to that particular establishment and pricing.

Here in Ottawa, Mr Transmission 700 ish with the Amerian Muscle kit for a 89 mustang.
Aslo 4:10 is great almost went 3:73 but very happy i went 4:10!

I found a retired ford guy, who did granny's and gears for 30 years.
cost me 150, i bough all the bits. It is about 5 hours work and even at a dealer,
make sure the have an experienced guy, if its wrong, its nasty.
I went from 355's to 373s, I notice a bigger difference than most are saying.
it pulls much better out of the whole and not to crazy when highway driving.
4.11's not as much fun on longer trips, great around town.

I had my 410s installed by a high end shop and it cost me $600+just for labor only. I know it's pricey but with no problems or issues you just have go this way. This is a install for pros only.