When I first got my car, I found the trans to have a extremely harsh up and down shift. After removing the pan, finding lots of gold & silver in the pan and ALL the forward clutch material I knew it was time for a rebuild.
I bought CK's book, billet forward drum, rebuild kit, ft pump, converter, etc (already had the big servo in it). I did the work myself and have to say it seem to come out ok, other than the tc sol and gov spring gave issues shortly after. What did not change was the hard up and down shifts (almost like it bangs). I found remains of a trans-go and another shift kit in the valve body during the rebuild. I did CK's setup with dual feeding and all. One of the valve body springs was apparantly replaced at one time with a short stubby stiff one-the location you would find the trans-go tag in if that makes sense to anyone. I forget the correct valve/location-its been more than a year. I figured this was the cause of the hard shifting...and may still be so.
What I noticed though is it seems when I start the vehicle cold and take off/stop it feels smooth with expected firm shifts. After the vehicle is at operating temps (170 or so) it shifts very hard in the lower gears. Under hard acceleration it feels like nice firm shifts, to make this clear it only shifts or more like bangs up and down through the lower gears under light/normal driving when the vehicle is warmed up. Any advice or ideas to what is going on would be appreciated. I would like to replace that spring with a stock one if I new where to get one, even if its not exact but something closer to the original. The thing in there now is the tiny short thing. I am starting to drive this dailey now, and have a few hundred miles on it and that hard shifting can be good.
Thanks for reading!
I bought CK's book, billet forward drum, rebuild kit, ft pump, converter, etc (already had the big servo in it). I did the work myself and have to say it seem to come out ok, other than the tc sol and gov spring gave issues shortly after. What did not change was the hard up and down shifts (almost like it bangs). I found remains of a trans-go and another shift kit in the valve body during the rebuild. I did CK's setup with dual feeding and all. One of the valve body springs was apparantly replaced at one time with a short stubby stiff one-the location you would find the trans-go tag in if that makes sense to anyone. I forget the correct valve/location-its been more than a year. I figured this was the cause of the hard shifting...and may still be so.
What I noticed though is it seems when I start the vehicle cold and take off/stop it feels smooth with expected firm shifts. After the vehicle is at operating temps (170 or so) it shifts very hard in the lower gears. Under hard acceleration it feels like nice firm shifts, to make this clear it only shifts or more like bangs up and down through the lower gears under light/normal driving when the vehicle is warmed up. Any advice or ideas to what is going on would be appreciated. I would like to replace that spring with a stock one if I new where to get one, even if its not exact but something closer to the original. The thing in there now is the tiny short thing. I am starting to drive this dailey now, and have a few hundred miles on it and that hard shifting can be good.
Thanks for reading!
