241/205 doubler

[sawzall]

Shifter bracket and cable shifters (this is just mock up its much straighter than it looks ), the bracket actually fits on the other side of the transmission adapter, see other pics further down:

Did you use mcmaster carr for the cables? i've been trying to source some that werent so expensive but have had no luck.

 

[Hogback Fabrication]

Did you use mcmaster carr for the cables? i've been trying to source some that werent so expensive but have had no luck.

Yep

 

[BGKYK5]

If you have looked at how the setups made with the splines at a 30* angle the shaft is self centering, as you put torque to the shaft it centers its self !!!

Duffy
D.D.Machine
(360)649-4465

FYI ... I just got done with a new run of the 241 drivers drop kits, shafts are coming back from heattreating end of the week

So you are still making these? Very cool.

This is definitely on my to do list.... some day.

 

[ssyork]

Yep


but I really don't feel its necessary (I have a degree in Mechanical Engineering, FWIW).

Sweet, see you there. Be nice to see somebody elses 241/205 in person.


Nice to know.

 

[dirtygoat]

If you have looked at how the setups made with the splines at a 30* angle the shaft is self centering, as you put torque to the shaft it centers its self !!!

Duffy
D.D.Machine
(360)649-4465

FYI ... I just got done with a new run of the 241 drivers drop kits, shafts are coming back from heattreating end of the week

Can you turn and respline a 203 shaft???

I've got a few that I need done...

 

[BoondocK5]

This is kind of a basic question, and you've probably answered it all ready, and I missed it somewhere, but, what year of trucks should I look for, for the 32 spline, Driverside drop NP241?

 

[Duntz00]

This is kind of a basic question, and you've probably answered it all ready, and I missed it somewhere, but, what year of trucks should I look for, for the 32 spline, Driverside drop NP241?

88-95 or 96 with a 4l80e or nv4500 or nv3500, probably best to look for a 1/2 ton chevy 88-95 with a 5speed in it and manual shift t-case.

 

[kylo28]

Those look like the cables NWF uses. Do have the part number by any chance or the thread size of the cable itself, thanks

 

[Hogback Fabrication]

Those look like the cables NWF uses. Do have the part number by any chance or the thread size of the cable itself, thanks

Pretty sure the cable is 1/4" fine thread.

These are them, they were cheaper when I got them.

 

[MTBLAZER89]

Ok have read this before, but really gathering info again here as this may be an upcoming project.

I have a TH350 with the 241 behind it. Trans originally had the 208 so it has the long adaptor/tailshaft. Any issues with this? I am assuming I'll just need to find a 27 spline driver drop 241 correct? Or cut mine up and flip it like you did. Id rather sell it if I can find a used driver drop for cheap.

I'll need a Round pattern 205 with what input? I think I read they are all 32?

Make the plate, buy the intermediate shaft, and build crossmembers?

Oh and I am assuming if you twin stick the 205 you still have front wheel only capability along with the two range sticks?

 

[Hogback Fabrication]

I have a TH350 with the 241 behind it. Trans originally had the 208 so it has the long adaptor/tailshaft. Any issues with this? I am assuming I'll just need to find a 27 spline driver drop 241 correct? Or cut mine up and flip it like you did. Id rather sell it if I can find a used driver drop for cheap.

I'm pretty sure the DD 241 will bolt right up, you may need a clocking ring.

I'll need a Round pattern 205 with what input? I think I read they are all 32?

The round pattern Chevy 205's are 32 spline

Oh and I am assuming if you twin stick the 205 you still have front wheel only capability along with the two range sticks?

Yep, the reduction box doesn't change any of the functionality of the 205

 

[MTBLAZER89]

Thanks for the info

Well I found several DD 241's on craigslist for $100 or less. The 205 may be a little harder. Looks like 85+ had the round pattern?

 

[84CUCV]

pretty sure that right. 85 i have is a round one. one my friend has is a 84 with the figure 8

 

[MTBLAZER89]

More questions Chris,

How big of a plate did you start with? Is 12"x12" enough? I found it online for $58.

What did you use to fill the hole on the side?

 

[Hogback Fabrication]

More questions Chris,

How big of a plate did you start with? Is 12"x12" enough? I found it online for $58.

What did you use to fill the hole on the side?

I honestly don't remember, get your 241, cut it up and then figure how much you need.

As for the hole on the side, do you mean the notch for shift rail? That is a piece of round aluminum tubing cut into a crescent shape.

 

[MTBLAZER89]

No the gap from where the case was cut. I am assuming just some thinner aluminum plate, or angle.

 

[Hogback Fabrication]

Oh, I just used some of the leftover 1/2" plate to fill that.

 

[MTBLAZER89]

Oh ok. Did you drill and tap for fasteners in that area to help with the sealing?

 

[Hogback Fabrication]

Oh ok. Did you drill and tap for fasteners in that area to help with the sealing?

I considered it but did not. The D&D one does have one tiny bolt there.

 

[MTBLAZER89]

Ok I saw that. Thats why I asked.