Currently in the process of doing a 4l60 to 4l80 swap on my 01 RCSB Silverado. Was wondering if any of you guys could refer me to a good strong supported transmission cross member for my 4l80 since the 80 is a bit longer than the 60. Truck will be pushing around 500hp so i hope there's something sturdy and strengthened around. Any links or any contacts would be appreciated. Thanks,

 

Dirt track racer makes the crossmembers.

 

How can i get ahold of them, any chance you got a contact number, email, web link ???? Thanks.

 

He is a member here... just poke around with the search you'll find his thread on the crossmembers.

Speed Engineering makes a 4L60/4L80 conversion crossmember powder coated in red or black.

SPEED ENGINEERING

 

Here is dirt track racer 81's Crossmember thread---> https://www.performancetrucks.net/fo...embers-521976/

You can contact him direct here---> https://www.performancetrucks.net/fo...acer-81-41542/

 

Appreciate it man, just ordered it and should be ready to roll pretty soon. Thanks.