Quote Originally Posted by THEFERMANATOR View Post
No. Lockup in 1st is impossible with a 5 speed, and highly unreccomended for the 6 speeds. I still wish we could get the tables for TCC lockup at closed throttle. No matter where you set the tables, the TCM will unlock the converter at the same road speed when you let off the throttle. But I realize this request is beyond low priority as only a couple of us have asked about it(just would be nice for those like me who have 3.42 gears to be able to keep the converter locked at 55 when I let off the throttle. Gets really annoying having it unlock at 56 everytime I let off.).
Why "impossible"? Some thought that the 600+ rpm lock limit was impossible too. Now I'm more curious than anything else. Not sure why anyone would really need to lockup in 1st other than for the sake of fun (and danger for that matter).

I have 3.73s and I just looked at a few logs and my converter is locked in @ 0% tps until about 1325rpm and about 50mph which is when TCC DC goes from 100% to 0%. Maybe you need a slightly smaller tire or higher gear to get you out of that range. ;-)