No. No extra bracing. The V8 frames are identical to the I6. The only thing that may change is the mounting holes for the transmission crossmember, as the V8 drive train is shorter from the front duff mounting centerline to the rear of the trans/xfer case. The rear driveshaft, and front if awd/4x4, at different lengths as well... But beyond that.. . IdenticalI wonder if only the 5.3l and 6.0l v8 frames would work? My fame has a "v8" sticker on one of the rails. Could have additional bracing for the bigger motors.
Have you started this work? I'm considering swapping the wrecked frame in my 2008.It is possible for you to do it. I have the same issue. Frame is rotted to Hell and the body is pristine. Luckily I found a brand new frame on Ebay for $1300. It was a GM subcontractor who had it in his warehouse forever. I'm getting ready to do this job in a month or two so I'll put up a post with pics. Also, make sure to coat the frame you get. I did POR15 and Eastwood inside the rails. Good luck!
Good deal. I'm looking forward to following your progress on this!I am buying the 2nd cherry picker this weekend ans the last 2 body mounts and a few other odds and ends coming in and then I begin especially since one of the rear air ride bags got a hole in it now. The frame I took to bare metal and put 3 coats of black POR15 and 2 coats of POR15 2K Clearcoat and used Eastwood Internal Frame Spray on the insides of it. So now is pulling the engine and Trans so I don't have to lift the body over it, only the strut mounts. I may just cut them off too so then the frame rolls right out the back. I'll keep everyone posted on the process. I still need to upload pics.