Quote Originally Posted by donf View Post
The van was a good one. The 4l60e was its down fall though. I built it heavy duty and it held up fine, just had bad gear ratios for towing. Since you are not supposed to use 4th towing and 2nd was way down there it was third and that's about it for towing. I have a 2001 Suburban 8.1L 4l85e now. I don't miss the van much. It was more practical space wise though. Having all that room back there to throw stuff in sort of spoiled me. The Suburban is a lot less work and money so far and does almost everything much better. Read most of Billy Graves posts on Transmissions. It helped me a lot. I like the newer software and Hp tuners a lot better than burning chips with TunerPro also.
I love that engine. Have one in my 99 Tahoe with the 425hp Marine cam and headers. With a 4L80E and 3.42 geared 9.5 behind it. Tahoe is on 32" tall P305/50R20s and it loves to cruise. 70 mph is 1,850 rpm and 85 mph is 2,300 rpm. Most of the time I don't even have to force it to kickdown to pass on country roads.

Did you ditch the 454 truck?