Tranny swap question

[Summer]

I have a 99 5.7 Tahoe with an awesome rattle coming from my tranny. My boyfriend has a 2004 1500 Chevy Silverado he is parting out. My question is will his transmission fit in my Tahoe?

 

[Summer]

I have a 99 5.7 Tahoe with an awesome rattle coming from my tranny. My boyfriend has a 2004 1500 Chevy Silverado he is parting out. My question is will his transmission fit in my Tahoe?

 

[ccapehartusarmyINF.(ret)]

im pretty sure you wont have any hangups is his a 4l60e and are both vehicles 2wd or 4wd it doesnt matter wich but im pretty sure they both gotta be the same

 

[ccapehartusarmyINF.(ret)]

also u mite wanna look into whats actually wrong with yours mite be something easy to fix you never know cuz having a tranny pulled if yer paying someone to do it its not going to be cheap its alotta labor
and i dont recomend doing it yerself unless you know what yer doing and have an extra set of hands to help

 

[Phone Man]

The tranny from the 2004 is probably hooked up to an LS Engine. Chances are it's probably a 4L60e also. However, it has a different size torque converter and will not fit behind the 5.7. You will need a conversion kit from GM which includes a Aluminum spacer to sandwich between the engine and tranny. It also includes longer alignment pins (the old ones are almost impossible to get out of the block) and spacers for the existing flywheel. You will also need an aftermarket dip stick cause the stock one will no longer reach since the tranny is moved back a bit.

My advice...get a tranny for the 5.7. I know because I went through this. Not worth it IMO.