Quote Originally Posted by 96silveradoz71 View Post
Not sure if this is right place to ask but did 0411 swap in my 96 it doesnt want to shift to 2nd in my driveway if i power brake in garage it shift at pretty high rpm. Looked at the upshift rpm parameters and they are all set at either 5000 or 4500 rpm the tune was a van tune i pulled off of here somewhere. Wondering if anyone knows what these values should be for the stock van tune for a decent starting point
Post your tune file, there might be other reasons for not shifting to 2nd.