okay next question. My trans shifts realy hard into first gear. accelerating normaly it shifts at about 2000 rpm and it feals like someone kicking you in the back. If ...

okay next question. My trans shifts realy hard into first gear. accelerating normaly it shifts at about 2000 rpm and it feals like someone kicking you in the back. If you hold the pedal to the floor and let it wind out it shifts just fine. With the trailor hooked up to it it dosnt feel a bad but I think thats just the trailor holding it back. All the other gears shift fine. I tried the lucas treatment and it did make it better but did not fix it completely.

I don't understand your question. Are you saying that when you are at a stop, the truck is NOT in first gear? Or while moving and it DOWNSHIFTS to first gear it is harsh? Sorry for the confusion but for a good answer we must be clear.

I am guessing he means the first gear change. From first to second. joebob, please clarify.

Yes from a stop when accelerating the truck would go through first gear and slam hard into second. I took the truck for an oil change yesterday and asked the guy to reset the change oil light and when I picked the truck up it was fine, no more problem. I gueas it was an isue with the computer.

OK, that's just weird....not sure they just fix themselves. But, glad it works!