Lq4, 4l80, I was planning on running the Selkirk crossmember with cruisermatts mounts. Does anyone see me having issues doing that? Will it cause drive line issues? If I remember correctly the Selkirk crossmember shifts everything over a tiny bit. Will this cause my engine and trans to be crooked down the tunnel? Am I overthinking this? lol I forget why I even bought the Selkirk crossmember at this point.Stick Gotcha's
1. Tap and helical the bolt holes on marks adapter that the T-case bolts to.
2. Selkirk aka Land Cruiser shop engine mounts w/ 4L80 will require drive shaft modification.
3. Marks adapter does not line up the Hi/Lo shifter mounts.
4. Get a dakota digital box for tach and PRND light and Neutral Safety Switch integration.
Add to the sticky - My poor assumption that using a marks adapter, since the transmission mounts to what I thought was about the same locations. I now need to get my driveshafts lengthened in the rear and shortened in the front.
So, I went with Land cruiser shop's aka Selkirk's engine mount and transmission crossmember. I incorrectly assumed this combo with a marks adapter was placing the t-case about in the stock location. That is not the case, I spoke with them on the phone, their mounts are made for ease of engine installation, which is 100% correct, stock GM truck accessories fit fine, no issues stock a/c, power steering etc.
This is not a knock on Selkirk engine mounts, I think they worked perfectly, every modification is most likely going to have a give and take. For me I wanted bolt on accessories, as I do not have a welder or welding skills. The idea of grinding off the old engine mounts and welding new ones, didn't seem like something I wanted to tackle. Trying to center or place a motor in from scratch, seemed a bit pass my experience level. I know everyone has an opinion on how to do these swaps. My only point is to make this aware for anyone else weighing their options. Selkirk referred me to Tom Woods 4x4 drive shafts for replacements. Not sure if I will go with new ones, or see if there are actually any driveshaft shops still in business. Joke is on me for thinking I was down to wiring and knuckle re-build!
I still have my SLEE skid plate that acts as a factory crossmember so I can still use that instead of the crossmember if needed.