Adding AWD to FWD 2023 Corsair Reserve

[Emo Jim]

Hey guys, I just bought a 2023 Lincoln Corsair Reserve III with the 202A package. I'm looking into adding AWD to it. Looking into it a bit, it's pretty easy to do. The only thing that will take a little time is making the Harness for the Module, Transfer Case & PTU aka rear diff. Now this being said, i think it will be very easy to do as i will not have to change the transmission. The transfer case will bolt on to it with no issues. I will then need to change the passenger front axle shaft as it will need a shorter one after adding the transfer case. I will have to get the AWD module that is located under the passenger seat, rear sub frame for AWD, rear diff with both axel shafts and I will have to get both rear spindles/knuckles that bolt to the upper and lower control arms. So, this is what I bought so far just so you guys know the cost involved. Front transfer case $256.00, the drive shaft from Town Car to RD $120.00, the interior body wiring harness which i will use to cut the wiring out for the AWD to make the harness $175.00, the complete rear sub frame wiring harness $84.00, rear sub frame $250.00, rear differential unit $155.00, PTU wiring harness $75.00. Keep in mind these are junk yard low millage parts, not new. The only 4 things i need to source out for my project is the two rear spindles/knuckles and rear axle shafts and that's about it as far as parts are needed. If anyone else has done this project, let me know. (Compare Notes) I will keep you guys updated. I can tell you this much. My Corsair only has 7,000ish miles on it. I will not be doing this conversion until my warranty is over. In the meantime, I will be making the wiring harness to connect into my harness. That will take a little time for that.

 

[C Krohn]

Why didn’t you just buy an AWD?

 

[Emo Jim]

Well every one I wanted to buy with the options and color of the vehicle, they were only FWD :-( I wanted the tow package option as well but i didn't get that either. That's not a big deal as i have another van that does have the tow package. So i would just use it to pull anything i might need to tow.

 

[MattMacMan]

Hey guys, I just bought a 2023 Lincoln Corsair Reserve III with the 202A package. I'm looking into adding AWD to it. Looking into it a bit, it's pretty easy to do. The only thing that will take a little time is making the Harness for the Module, Transfer Case & PTU aka rear diff. Now this being said, i think it will be very easy to do as i will not have to change the transmission. The transfer case will bolt on to it with no issues. I will then need to change the passenger front axle shaft as it will need a shorter one after adding the transfer case. I will have to get the AWD module that is located under the passenger seat, rear sub frame for AWD, rear diff with both axel shafts and I will have to get both rear spindles/knuckles that bolt to the upper and lower control arms. So, this is what I bought so far just so you guys know the cost involved. Front transfer case $256.00, the drive shaft from Town Car to RD $120.00, the interior body wiring harness which i will use to cut the wiring out for the AWD to make the harness $175.00, the complete rear sub frame wiring harness $84.00, rear sub frame $250.00, rear differential unit $155.00, PTU wiring harness $75.00. Keep in mind these are junk yard low millage parts, not new. The only 4 things i need to source out for my project is the two rear spindles/knuckles and rear axle shafts and that's about it as far as parts are needed. If anyone else has done this project, let me know. (Compare Notes) I will keep you guys updated. I can tell you this much. My Corsair only has 7,000ish miles on it. I will not be doing this conversion until my warranty is over. In the meantime, I will be making the wiring harness to connect into my harness. That will take a little time for that.

Just want to let you know.....a PTU is a Power Transfer Unit. It is bolted to the transmission. It is NOT a rear differential. The RDU (Rear Drive Unit) is the rear differential. Theres also a TON of module programming and firmware differences in the modules you already have in your vehicle. Youll need to flash the firmware in your ABS Module, in your BdyCM, your TCM, PCM, in addition of adding CAN network wires to connect to your GWCM so the new modules can have communications established with the rest of the vehicle. Plus youll need to make sure you don't have to re-route your exhaust (some vehicles such as the MKZ and Fusion have completely different exhaust systems for FWD and AWD since the exhaust shares the tunnel with the drive shaft). Its going to be a much bigger project than you think. Let us know how it goes!