241/205 doubler

[dirtygoat]

Wow, very cool...


Now I have to go and read a bunch...

 

[sawzall]

so did you ever get this setup up and running? also, i'm kind of interested in doing this but i have a 32 sp 241 and a 32 sp 205. could i just have a straight 32 spline shaft made to connect the 241 to the 205?

Thanks,
Mike

 

[sawzall]

or is the "internal output" of the 241 a different size/spline that the input?

 

[ssyork]

The internal splines are the same. The female splines on the front of the 241 that the tranny shaft goes into are the 32 or 27 spline. The 32 is what was in some 3/4 and 1 tons. You have the right t-cases already. Time to cut the 241 and double them up!

 

[sawzall]

so, once i split the 241 case and cut it up, what shaft do i need to connect it to the 205?

 

[ssyork]

Look on the first page first post on this thread. He got his shaft from D&D machine. I got the whole kit from D&D machine earlier this year. Somebody local might be able to make you one too,but D&D should have them on the shelf.

 

[sawzall]

Yeah, the shaft on the first page is whats giving me confusion. it is for a 31 spline 205 but the difference between the 241 side and the 205 side seems huge (size wise). thats why i was wondering if i'm using the 32 spline 205 if it was the same size as the 241 output because if it was, i think it would be much easier for a machine shop to just make one solid 32 spline shaft that could be "cut to fit" between the 241 and 205. I really appreciate all the help by the way!

Thanks,
Mike

 

[ssyork]

It is for a 31 spline input because he is using a ford input in his chevy 205. Me on the other hand am using a Ford drivers drop 205 with a long chevy 32 spline input. D&D only makes 32 spline inputs now because the inputs on the 205's are interchangable. The shaft sizes are different so a solid 32 spline will not work. The small side goes into the 205. His are chomoly though.

 

[sawzall]

excellent info! I am also using a long 32 spline 205, is there a spacer that you needed to make (not just an adapter plate) in order to mate the two? if so, some specs would be greatly appreciated.

 

[ssyork]

I am having one made here in town. Pm me your email and I can send you some pics of the style mine will be. I should be taking mine in to be made the end of this week or next(waiting on some $$). I can see what he would charge to make two if you like.

 

[Hogback Fabrication]

Finally getting this crap together, I've been super busy this last year, I should've just thrown the 241 in there and wheeled it for all of last summer

Anyway, this is the brace I made for the 205:

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:

I shortened and lengthened the driveshafts by myself but didn't take many pictures, here's what the pieces look like once you grind the weld out:

And in the truck:

I didn't take enough pictures really but the front (trans) crossmember is kinda shaped like a tetris piece to clear the front driveshaft.

As you can see the t-case and mounts would interfere with the floor big-time if it were still therebut I was already in for re-doing the floor and seat mounts so no huge deal there.


You can see the beginnings of a skid plate there too, I'll keep you guys updated once I finish that and build the shifter setup.

 

[NorCalKid]

Looking good! I like how you did the 205 cross member, pretty damn clean

 

[ssyork]

looks good. Mine is ready to install. You have got way less $$ in yours for the same outcome! Nice job.

 

[Hogback Fabrication]

Looking good! I like how you did the 205 cross member, pretty damn clean

Thanks, it didn't come out terrible considering I'm doing all this with a 4.5" cutoff wheel

looks good. Mine is ready to install. You have got way less $$ in yours for the same outcome! Nice job.

Yeah, but it was way more work. Not sure if I feel it was worth it or not, though I suppose you can't buy the 241 doubler kit anymore anyway.

 

[ssyork]

Yeah, but it was way more work. Not sure if I feel it was worth it or not, though I suppose you can't buy the 241 doubler kit anymore anyway.[/quote]


I bought mine in jan of 2009. He said it was one of 2 or 3 left. Ended up modding mine so much though it probably would have just been better to have it made local exactly how I wanted it. Oh well, its ready to put it now. You going to Blazer Bash?

 

[dirtygoat]

Very nice...

Did you use the bearing on the shaft going from the 241 to the 205???

 

[ssyork]

Very nice...

Did you use the bearing on the shaft going from the 241 to the 205???

Where does this bearing go? The shaft between the two is splined.

 

[dirtygoat]

Where does this bearing go? The shaft between the two is splined.

There's a bearing on the shaft between a 203/205 set up... I was wondering if the 241 was done the same way...

 

[Hogback Fabrication]

You going to Blazer Bash?

Yep

Very nice...

Did you use the bearing on the shaft going from the 241 to the 205???

There is no bearing on the back of the reduction box (the piece that's left of the 241). There is basically the big bearing at the front of the 241 and the big bearing (from the 31 spline input on the 205) to support it, I'm not the least bit worried about any issues from this.

If I were designing something from scratch I might put a bearing at the rear like the NWF black box but I really don't feel its necessary (I have a degree in Mechanical Engineering, FWIW).

 

[d.d.machine]

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