JB Fab AOD Twin Sticks?

[rguest3]

JBFab has the newer Twin Sticks for the AOD overdrive transmission conversion. (T-shift and J-Shift Versions) The Twin Sticks are a little different and they bolt to the Transmission Adaptor.

Has anyone installed these with the AOD? Straight forward? Do they solve the linkage problems?

 

[mattt]

Yes, I used the JBFab twin sticks with an AOD and a T-shift. Once Jon & I got the measurements worked out, the set I have now bolted right in. When these first came out, they were based on faulty info in Advance Adapters instruction sheet that said AOD is the same length as any stock Bronco V8 drivetrain. That in turn, would have required a new hole in the tunnel to be cut. With some measuring on my part, Jon made another set that are offset, I think it's 1.5" forward so they work with a factory tunnel hole. I have been nothing but happy with mine.

 

[rguest3]

mattt,

Other than the offset, any other issues what so ever?

Anything needed to be modified with the transfer case itself?

Seems like the OAD Specific Twin Sticks make a huge difference as far as ease of installation.

Did you need a body lift, or suggest one with the AOD?

Thanks

 

[rguest3]

Just spoke with Jon at JB Fab.

This AOD install should be a lot easier than what was tried / done before.

 

[mattt]

This is what my set look like, and they work fantastic & were an easy install once we got the overall trans length to hole in the tunnel dimensions nailed down. Thanks Jon!

Also went for the black anodized laser? labeled twin stick knobs and a matching shift knob for the Winters shifter.

 

[mattt]

mattt,

Other than the offset, any other issues what so ever?

Anything needed to be modified with the transfer case itself?

Seems like the OAD Specific Twin Sticks make a huge difference as far as ease of installation.

Did you need a body lift, or suggest one with the AOD?

Thanks

I have no body lift. Everything fits, but it's snug. Body lift gives everything a little more breathing room. Your call...

If you want fully independent shifting of front and rear axles, you need to modify either the shift rail(internal) for a T or cut the connecting flags(external) for a J.

 

[JB Fab]

Mattt,

We are glad to hear the feedback on the shifters.
Your set was a "one-off" custom at your request. The custom handles were not incorporated into production runs since they were not prototype tested by us or our distributors.
Having said that, the next step would be determining what the dimensional difference is that caused the initial confusion with the hole location.
I believe it was written on one of the threads that there are two different lengths of AOD? Does anyone have any good information on that?

Jon Barricklow
JB Custom Fabrication

 

[rguest3]

Maybe different lengths between the 4x2 and 4x4 AOD?

Looks like Matt has the 4x2 with AA Adaptor.

 

[mattt]

I can only speak to my setup which is AOD with AA adapter. AFAIK, In all cases the AOD is longer than any stock Bronco V8 drivetrain. Simply put, Advance Adapters is incorrect in their assertion that the length is the same.

Were the length the same, when installing an AOD in an EB, driveshaft mods would not be req'd.....but they are. The length difference is 1.5"(longer) if I remember correctly, and that is documented all over this site and in the tech article. For a 4R70W, add another ~3/4" to that 1.5" for a total of 2.25" longer than stock Bronco drivetrain.

The JBFab AOD twin sticks probably would not work on a 4x4 stock AOD as that adapter is quite different. I have a picture of it on my other computer. I don't think Jon markets these twin sticks as working for that application. Other than the tailshaft and tail housing differences, every AOD is an AOD. No different in the front 3/4 of the trans.

I suppose the hole in the tunnel on my Bronco may not be stock, but it appeared to be. How many other people run these twin sticks and if Jon didn't incorporate the changes that mine have....how did you contend with getting the twin sticks thru a factory tunnel hole?

 

[rguest3]

I have had to elongate the hole before to make things work.

Just curious, which Winters Shifter did you install?

Thanks

 

[kc15842]

I installed tke JBFAB twin stick on my AOD T case. It was as clean an install as you could want. I have new body mounts with no body lift.

 

[JB Fab]

There are two ways to adapt the AOD to the D-20

1- replacement tail-shaft housing for 2X4 AOD(uses our EB20 AOD shifter)

2- Clocking ring, as used on 4X4 NV-3550, ZF, 4X4 AOD, M5OD (uses our EB20 NV3550/ZF). Shown here on a Ford ZF 5-Speed.

 

[rguest3]

Thanks guys. Seems like it's a much easier install with the JB Fab AOD Twin Sticks.

Jon - Will be ordering soon.

 

[mattt]

I installed tke JBFAB twin stick on my AOD T case. It was as clean an install as you could want. I have new body mounts with no body lift.

Do your twin sticks look like the ones in my picture or one of the two that Jon posted a pic of above? Did you have to cut the hole in tunnel floor to make them work? I don't think there is anything special about my Bronco, but there was no way the ones in Jon's pic would come thru the factory tunnel hole on my setup.

I have new body mounts as well and I'm using the Advance Adapters housing to mate the D20 to the AOD.

rguest.....I'm using a regular Winters shifter on the AOD. Some people refer to this shifter as an Art Carr shifter.

 

[markw]

I have a 4R70W/AA/D20 with the original JB twin sticks. I ended up mounting them to the top of the transmission with significant modification to the picot extensions and some rigid connectors using Midwest Control parts. It moved the sticks to the left about 1.5" but kept them in the same position front to back. They are very rigid and work great. Took a long time to work it out though. I'll try to figure out how to post some pics.

 

[Pa PITT]

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[mattt]

Mattt,

We are glad to hear the feedback on the shifters.
Your set was a "one-off" custom at your request. The custom handles were not incorporated into production runs since they were not prototype tested by us or our distributors.
Having said that, the next step would be determining what the dimensional difference is that caused the initial confusion with the hole location.
I believe it was written on one of the threads that there are two different lengths of AOD? Does anyone have any good information on that?

Jon Barricklow
JB Custom Fabrication

More info that documents the 1.5" longer length of the AOD....hence why my twin sticks have the forward shift bend at bottom(as can be seen in the pic I posted above)

http://classicbroncos.com/tech/aod-3-speed-automatic-transmission-guide