This showed up last week. I wasn't able to find a used one so I had to go with a new one.
The front side of the 32 spline input for the 203.
Back side
This is the seal No. that I pick up from Napa.
It's the single wider seal with the double lip. It's application was for a 203 behind a turbo 400. I believe my 203 came behind a turbo 350 and the parts computer said it took a different seal which they didn't have (which I think is the two seals put in back to back).
Double single seals on the left, single double-liped seal on the right
Input gear comparison. 27 spline on left, 32 spline on the right. The bearing was good so I reused it. Getting the bearing retainer clip off of the old shaft and on the new one turned into quite a job. I had to leave it alone for awhile and come back to it because I was having the urge to grab a BFH.
Just like Mace said in post
NO. 60 the adapter centers on the bearing retainer.
Good fit
Decided to add a drain port to the 203. I used a "metal shavings removal device" to assist in cleanliness while drilling.
Got the input gear and shifting mechanism back in the 203. Put the adapter on the 203 and made my cardboard cutout of the intermediate shaft retainer idea.
Cleaned and painted the 4L80e 4x4 adapter
Cut this out of the stepvan frame. I made the inner circle by drilling holes around my tracing on a drill press. Then I took a dremel tool to it and fine-tuned the hole size.
The adapter can be rotated without it hitting the retainer I made. I'm using existing bolt holes to fasten the retainer and that will plug those holes up. Now I'll have to deal with the ones around the input shaft area under the adapter.