I have a 69 camaro with a th400 and im switching over to a b-w 10 thats from 79. as far as i can tell its got a 3.42 first gear. other that the normal stuff i have to buy, do i have to change the drive shaft or crossmember, and will the shifter line up with the console?

I had one in my '69 -- converted from TH350. Here's what I think I remember:
-- Check which ST10 you have, but most had the TH400-style (32-splie) output, so the TH400 yoke will work fine. If it's really a '79 trans, it'll be 32-spline
-- I can't remember if the TH400 and TH350 driveshafts are the same length, but my TH350 shaft worked fine after I changed the yoke.
-- I used my original TH350 crossmember. You may be able to make the TH400 x-member work or just pick up someones used TH350/manual Xmember
-- To get the shifter to fit the opening, talk to Crash. Hurst, etc. does not make a "bolt-in" shifter kit, but Crash has pieced together some parts. I ended up using a Muncie kit and made my own shifter mount. Worked fine in my console ( a little tight in reverse though)

Thanks for the help, it does have a 32 spline output shaft so that will work, can you give me Crash's contact info, i can make my own mount but i need to see a picture of what it looks like, thanks for the help. and btw what shifter are you using?

Crash is "Crashent" here on Camaros.net. You can search for posts under his name and see some of his comments regarding the ST10 stuff. Here's a user link:
http://www.camaros.net/forums/member.php?u=9100

For reference, I used the following parts to make everything work:
-- Hurst Comp Plus shifter assembly (3914340)
-- Hurst 5384106 shifter arm (this is actually for 67/68 camaros. I believe the 5387436 shifter arm will work as well)
-- Hurst Comp Plus shifter install kit for '69 Camaro with Muncie (3737437)

I ended up tweaking the shift rods a bit and drilled a new hole for the reverse rod in the shift lever on the trans (this is what made reverse pretty tight, but it also gave reverse a "long travel" shift, which made it harder to accidentally grab R). I've since moved to a TKO600 and enjoy the extra gear (but miss the deep 3.42 1st -- I need to swap out my rear). Also, since my care was originally a TH350, I just cut the shifter hole where it needed to be -- not sure if my setup would have fit the "stock" shifter hole...

Check out my post, it might be helpful.
http://www.camaros.net/forums/showthread.php?t=98172