72' 5.3-4l60-np205

[d.garza9]

Okay Folks here's the deal. Bought a 72 blazer to make it a daily driver. I purchased the engine(5.3) and tranny(4l60e) last week for $1000 even. I thought it was a heck of a deal too! My issue now is tying everything togetherwhile keeping the original np205 transfer case. At this time I'm getting ready to purchase the advanced adapters shaft http://http://www.advanceadapters.com/products/pn-50-6900/
and the 4l60e kit
http://www.advanceadapters.com/products/pn-50-0405e/

Please let me know if there's anything I'm missing. Also I've been advised that will need to lift the truck 3 to 4 inches to create clearance from the front differential. I have also been advised that the engine will have to moved 2 inches to the front to keep the original shifter in its place.
Thanks in advance!

[thor]

I have a 350, 700R4, NP205 combo in my 72 blazer. I bought my tranny from a coworker who had it BUILT. The tranny had the output shaft you listed to make it "look" like the TH350 it was replacing. Then using the stock Th350-NP205 adapter it bolted right-up. I chose to use the factory 350 location, then bolt-on the tranny, then bolt-on the transfer case, then bolt-on the crossmember. This gave me locations to drill new holes. I then cut my tranny cover for the new shifter location. This was about 2" towards the rear; from what I read the actual measurement is 1-7/8" but I think it's always better to mock-up. So, if you wanted the shifter in the stock position I would agree that the engine would need to move forward ~2". Not sure about front diff clearance though. Something to think about.

I understand that with the 4L60e you need to have the adapter with reluctor wheel for the VSS. However, reading AA site you attached, I am unsure if this will add length to the end of the 4L60e. As a follow-up question you might want to pose to AA, will this negate the need for the new output shaft? Could save you some bucks and a rebuild. Then again, if you do need the new output shaft, you can also beef-up other components that break inside the 4L60e.

[themb2g]

i am doing this exact same thing and am joining this thread for the advanced adapters links since they just changed their website. I have already ordered a 2" lift, and now i am wondering if it is going to be enough to fit everything in. Where did you read that you need a 4"? thanks!

[d.garza9]

I got the information from "The Alien" on this web site. He has a great Mating a 4l60 to NP205 thread. It provided me with most of the information I have and think I will need. I was just searching for other opinions and possible solutions. Let me know if you come across something.

[d.garza9]

here are some of my pics

[Gunny Davis]

Doing the exact same Swap...
AA fails to tell you that you need to have the NP205-TH350 adapter and sleeve machined to fit thier 4-6 bolt adapter for the 4L60e. It is a *note in the instructions you can see on thier website for Part AA50-0405.

My T/C adapter had the bearing style sleeve. Remove the bearing and have .500 removed from Trans side. Don't forget to have the chamfer re-ground on the inside of the sleeve to assist with fitting the Trans shaft in there.
I hope to have this done today and I'll post pics

[Jtrux]

Where are you located? I'm doing a similar swap. 6.0/sm465/np205 into my 71.

[lopemaxx]

garza

did you complete the swap? what did you end up having to do to mate the 4l60e to the np 205?

thanks