Stock 350 3/4 ton transmission options

[99xcss4]

Alot of 6.5Ls were paired to the 4L60E as well. They used the same transmission controller as the 4L80E but with a different calibration chip.

wow putting a 4l60e behind a 6.5 sounds like bad news to me I hope those were non turbo variants at least and since you are our resident van expert do you any good info on the p series step vans