I'm new to this forum, so forgive me if this issue has been address before. I have a '57 Chevy with a factory 283 and cast iron Powerglide. I plan to install a turbo 350 trans and was wondering what troubles I will encounter. My main question is in regards to the crossmember. I read somewhere that a 4-speed crossmember will work with a T350. Is this true? Are there any aftermarket manufacturers that make a crossmember that fits this application? Will I need to use a different dipstick? Sorry for so many questions, I'm just trying to cover all the bases. Thank you in advance for your help. - Ben