My trans is getting 2nd gear redone right now. I pulled the trans to save a bit of cash, buuuut...
$1000 labor
don't know parts cost yet
replace FW and clutch $700+600 (I'll do the labor on these)
since we're in there and spending, let's put in a torque biasing diff! $1300
I'm hoping to come away under $4500 for all of this
