I have a jeep with a 6L80e behind an LS3. I'd like to be able to hold the trans in 1st gear when the shifter is placed in "1" (technically, this is D2 in the shift pattern according to the scanner). To accomplish this, I raised the Normal D2 1-2 shift speed. This works in preventing the trans from upshift, however when off the throttle, there is NO engine braking (feels like the trans is in neutral).

Any idea what's going on here? Is there something I can do with the tuning to get engine braking in first? If I force it to hold 2nd there IS engine braking btw.

Thanks,
Jordan