73-87 Chevy _ GMC Trucks > Transfer Cases and Front Drivelines

Np205 adapter

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jmduryea1:
Okay guys I need some help with knowing what’s compatible, I have a th400 4wd trans bolted up to a np203 and I want to swap in a np205 but the adapters are big $$ from what I hear. So I found a th400/np205 adapter for a good price and it looks more like a th350 adapter. Will this still work for a 400? Also would like to upgrade to a 4l80e in the future and I hear that same adapter is what I need. I will try to post a pic but it never cooperates for me


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Mike81K10:
Pics have to be resized to 500 KB or smaller and works well when you save them as JPEG.

jmduryea1:
Trying to also get a part number off it


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JohnnyPopper:
Are those two different adapters?

jmduryea1:
Same adapter, pics of front and back. Part number checks out for the turbo 400, I’m hoping it’ll work for the 4l80e also


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