Advanced adapter 4R70W question

[turbotim2]

In the description for the adapter, it says "It is very important that the new main shaft furnished is compared to the original main shaft being replaced."

What aspect should I be comparing and what if there is a difference? I asked the company a couple of weeks ago and never got a response.

Thanks!

 

[Broncobowsher]

Probably just making sure they shipped the one for the kit. Does the part that goes into the transmission have all the right splines that match the one that came out? Does the tail side splines match the supplied transfer case spud shaft?

There is also the AOD version of the shaft that has extra holes for the governor. In the early days this was the only shaft. You got a pin and sleeve kit to adapt this to the 4R70W. Since then the shafts have been updated and no longer have the holes so don't need the pin and sleeve kit. Which is good because that kit is now obsolete. They do still make the AOD kit, and if you got that kit by mistake, or the shaft due to a shipping error it would be wrong.

Really it isn't that big of a deal. Does it look like the one coming out of the transmission on the transmission side? Will it mate with the rest of the parts on the transfer case side? Idiot proofing the instructions. They have been doing this for decades, they probably ran into some people that should have been part of Darwin.

 

[turbotim2]

Ok, thanks for the help!

 

[turbotim2]

Another question, since the adapter pushes the TC back 1.5", does that mean the TC shifter is as well? I did buy twin sticks made for the conversion. Thanks!

 

[Broncobowsher]

I don't know about the twin stick made for the conversion. I did mine back before there were special parts available.
The pivot point for the shifter stays relative to the transfer case. Since the transmission case is longer, and the transfer case is moved back. The pivot point for shifter is moved back. So old school, the shifter moves back. Check with who you got the conversion twin sticks from.

 

[turbotim2]

Ok, thanks!

 

[904Bronco]

JB Fab twin sticks? Then this below... (I have a 1" Body lift with 4R70W and D20 T-shift)

 

[turbotim2]

Yes, exactly! That doesn't look too far off the stock shifter hole.

 

[SC74]

In the description for the adapter, it says "It is very important that the new main shaft furnished is compared to the original main shaft being replaced."

What aspect should I be comparing and what if there is a difference? I asked the company a couple of weeks ago and never got a response.

Thanks!

It's been a couple years since I did this, but don't you have to grind the end down a little bit? It depends on what year Explorer though I think.

 

[fordguy]

It's been a couple years since I did this, but don't you have to grind the end down a little bit? It depends on what year Explorer though I think.

I think you are referring to another adapter, not the 2704E?

 

[Broncobowsher]

It's been a couple years since I did this, but don't you have to grind the end down a little bit? It depends on what year Explorer though I think.

That sounds like the 4WD transmission version where you keep the original output shaft. Completely different than the 2WD adapter that comes correct length.

 

[SC74]

That sounds like the 4WD transmission version where you keep the original output shaft. Completely different than the 2WD adapter that comes correct length.

Yes, that sounds exactly right. Mine was 4WD so that's why I remembered it.

 

[turbotim2]

I don't recall an option for the transmission when I bought the adapter.

 

[fordguy]

We have done 2wd and AWD and the replacement shaft was a direct fit, no grinding. Also we put twin sticks on after installing the tram. It looks like you could install them before transmission installation. Has anyone done this?