Long story short, the I6 is bad in a Bravada we purchased a while back and I could not bring myself to put an I6 back in it. Happened upon a donor 2008 TBSS that had an interior fire and bought it. This past weekend, I got everything from the top side of the TBSS done (heater hoses, AC lines, radiator/condensor, wiring harnesses, etc) so all that is left now is underneath (body mount bolts, parking brake cable brackets to body, steering shaft, etc). Once I have my car off of the lift, I'll pull the TBSS in and get the body off. After this, I'll bring the TBSS frame home to start getting it prepped. Here is what I know I need to do; any other info is appreciated. I WILL NOT be using the LS2 in the TBSS as I have to give it back to the guy I bought the frame from. I plan on either doing a 5.3 or an LQ9 in it in order to keep the cost down. Also, since the TBSS was an 08, it had the 58x wheel and I did not want to spend the money getting a 58x-24x conversion box.
Here is what I know I'm up against so far:
1. Move body harness from Bravada frame to the TBSS frame so it still is plug and play. Both vehicles have rear air suspension.
2. Get new engine installed in place of the LS2.
3. I purchased a 2003-2004 engine harness from a V8 TB. I know it's not plug and play as it sits since one of the I6 PCM plugs is in the main body harness. Question here is do I have to get a whole body harness to make it plug and play or is the section that passes through the firewall fairly short (does it connect near the steering column or does it travel through the whole body?) If the harness goes through the whole body, I'll just end up getting another plug (like the main body/chassis harness by fuse panel) and turn it the other direction so you could not accidentally plug it in the wrong spot so engine could be easily removed in future if need be.
4. Flash a PCM with 03-04 TB/Envoy V8 platform so everything still functions. Question on this is I have heard that 2002 is an absolute oddball year and there could be some obstacles to get the AC to work? Anyone have some input on that?
5. Once complete drivetrain is finished in the TBSS frame, I'll take the Bravada to the shop and remove the body from its original frame and roll the TBSS frame under it.
Anyone with any input, I'd appreciate what you have to say. Not doing this because it's cost effective; I'm doing it because my wife loves the Bravada and I'd rather have something fun to drive. I figure the TBSS frame should make both of us happy...
Here is what I know I'm up against so far:
1. Move body harness from Bravada frame to the TBSS frame so it still is plug and play. Both vehicles have rear air suspension.
2. Get new engine installed in place of the LS2.
3. I purchased a 2003-2004 engine harness from a V8 TB. I know it's not plug and play as it sits since one of the I6 PCM plugs is in the main body harness. Question here is do I have to get a whole body harness to make it plug and play or is the section that passes through the firewall fairly short (does it connect near the steering column or does it travel through the whole body?) If the harness goes through the whole body, I'll just end up getting another plug (like the main body/chassis harness by fuse panel) and turn it the other direction so you could not accidentally plug it in the wrong spot so engine could be easily removed in future if need be.
4. Flash a PCM with 03-04 TB/Envoy V8 platform so everything still functions. Question on this is I have heard that 2002 is an absolute oddball year and there could be some obstacles to get the AC to work? Anyone have some input on that?
5. Once complete drivetrain is finished in the TBSS frame, I'll take the Bravada to the shop and remove the body from its original frame and roll the TBSS frame under it.
Anyone with any input, I'd appreciate what you have to say. Not doing this because it's cost effective; I'm doing it because my wife loves the Bravada and I'd rather have something fun to drive. I figure the TBSS frame should make both of us happy...