Brand new trans but still no reverse

[anemity]

It's a 2006 Ford F-350. Truck had no reverse so trans was removed and a new one put back in. But still no reverse. Trans was dynoed before shipping back and all was good. The trans was removed and installed by a guy that specializes in transmissions. Anyone have any idea what else it may be?

This is the truck:

[Ryan Rønning]

Maybe the shift cable is out of adjustment and there for it is not shifting in to reverse!

[anemity]

It shifts into everything fine. Its on jack stands now but when we put it into reverse the tires move but not enough to move the truck when it is on the ground

[anemity]

Let me say that one better... it drives in forward gears fine but not enough power for it to move when it is in reverse. Thank you for the help my dad will greatly appreciate it.

[Ryan Rønning]

I would say that it sounds like the reverse valve is stuck but I find it unlikly that it would happen in two trannies!

[anemity]

Originally Posted by RRonning1984

I would say that it sounds like the reverse valve is stuck but I find it unlikly that it would happen in two trannies!

Yeah I highly doubt that would be the case... just wish I could figure out why this is happening

[lowstroke]

The guy that installed it and "specializes" in transmissions cant figure that out? Unplug the wire harness and try it. If it goes into reverse , then you might have an electrical problem. Also, check your back up lights. They should engage when in reverse. When it is unplugged, you should only have reverse and third. If still no reverse, there is something wrong in the trans.

[Drepka]

I would guess there IS no reverse! that looks like a freakin kickass drag truck,,push it backwards. Thats a good looking truck!

[anemity]

Originally Posted by lowstroke

The guy that installed it and "specializes" in transmissions cant figure that out? Unplug the wire harness and try it. If it goes into reverse , then you might have an electrical problem. Also, check your back up lights. They should engage when in reverse. When it is unplugged, you should only have reverse and third. If still no reverse, there is something wrong in the trans.

He ran out of time its getting fixed in our garage he said he is going to bring his computer over next weekend. I'm just trying to help my dad out since the weather is awesome I know he wants to get it back on the road. When the truck is in reverse the back up lights do come on. We thought the trans was messed up in the first place and this is a brand new trans also when is leading me to believe it was not the trans at all why would that happen 2 trannys in a row? What wire harness are you saying to unplug?

[anemity]

Originally Posted by Drepka

I would guess there IS no reverse! that looks like a freakin kickass drag truck,,push it backwards. Thats a good looking truck!

It had reverse before my dad baught it from Eaton when he was working there... that truck hauled the trailor behind it in the pic... Yeah the truck looks waay meaner in person