I blew the 10 bolt 2 weeks ago and bought a 10 bolt already assembled with 4.10 gears. My PCM is tuned by ed wright for 3.73s and i figured i would have some problems with the tuning but Ed told me that i would only have a higher MPH reading since he set my shift points and lock up. Well after the new 10 bolt went in we tried to take if for a spin but i could not get the car to ingage in OD or D. I have to manualy put the car into 1st or 2nd and manualy shift into D for 3rd and then shift into OD for 4th. A local tranny builder said it sounded like the sprag went out because of OD and D feeling like nuetral but i don't understand how i could have lost my 10 bolt and sprag at the same time??? Is it something simple? Everything is hooked up correctly. Thanks for any help.

<small>[ February 01, 2003, 05:24 PM: Message edited by: StreetStalkerZ ]</small>

 

Sounds to me like the rear took the trans with it. So your saying it goes into 3-4 but theres nothing there? If so the bands are wasted and ya need a rebuild.

 

No it will shift into 3rd and 4th gear and also lock up but i have to manualy shift the car. If i just leave it in drive or overdrive the car feels like it is in nuetral. I wondered if it were a sensor or selenoid because the tranny fluid looks very good with no signs of scorching but i am not showing any SES lights to indicate a sensor or selenoid. Any thoughts?


Scott

 

StreetStalker,
It's definitely a bad sprag. The same thing happened to me once. I broke a U-joint at the track. I replaced it that same night, still at the track...that's when I noticed no 3rd or 4th gears. I pulled the trans and found that the sprag had broken.
Kevin