Are you absolutely sure that one has the 4L80E?

I've done a lot of motorhomes. Most of the P30 Class A motorhome chassis with 454s that I've seen had the Allison Automatic. The 4L80E was used...

Old time racer, autocrosser, and all around car/truck guy here. Been working on my own cars, both street cars and trailer queen race and/or autocross cars, since the early 1980s.

Looking at...