454 swap questions

[getbent]

been lurking round here off and on and have a question maybe someone can answer> i have a 1996 ecsb silverado and its currently outfitted with a 4.3 w/ a 4l60e I am in the process of finishing up the motor and will be running a th400 does anyone here know of this swap and any input on my front driveshaft {its the 2 piece } how much to have removed and approximate cost for such a thing, Im prolly gonna try and find one in the junk yard and have it cut so my down time wont be to long,

thanks and ps theres some good stuff on this site!!