NP241C homemade SYE

[upside-down]

Np241c .
I cut down the tail cone , bought a yoke , and performed hack and tappage.
I was able to chuck the shortened tail on my wood lathe to make the seal fit inside .

 

[welndmn]

hack, tap and Circumcision?
I like it!

 

[Weasel]

Mine I did myself leaks, not bad but enough. I didn't shorten the housing though, nice job.

 

[upside-down]

It came out pretty for the tools I used .
Best part is now I know how far I can move the drive train back in this dinky buggy project.
Goal is to have it active for summer.
Was supposed to be done last summer, ended up getting both shoulders replaced .
This 241 case should be plenty strong for the little Suzuki motor and power glide shorty .
I used a NOS np203 1310 yoke and seal - the smaller seal .

 

[AgitatedPancake]

Awesome stuff. I was under the impression that 32 spline slip outputs had a different pressure angle so regular fixed 32 spline yokes wouldn't slip on, but great to see that's not the case. Simplifies things a good bit

 

[upside-down]

Awesome stuff. I was under the impression that 32 spline slip outputs had a different pressure angle so regular fixed 32 spline yokes wouldn't slip on, but great to see that's not the case. Simplifies things a good bit

It slid on about a 1/2 inch , then I used the 3/8 bolt and light taps to pull it on . Wasn't too bad .
Basically a press fit yoke on a slip shaft tho ,need to have good threads tapped in the shaft .
Comes off with a two jaw puller and impact just like an axle yoke .
Might have been easier just to trim a slip yoke and use a different seal .

 

[arse_sidewards]

Awesome stuff. I was under the impression that 32 spline slip outputs had a different pressure angle so regular fixed 32 spline yokes wouldn't slip on, but great to see that's not the case. Simplifies things a good bit

There's different "standard" tolerances depending on no slip, vs slip under no load (most bolt on yokes) and slip under load (slip yokes). Any machinist desk reference will have the details.

 

[RunningProblem]

Good tech

 

[AgitatedPancake]

It slid on about a 1/2 inch , then I used the 3/8 bolt and light taps to pull it on . Wasn't too bad .
Basically a press fit yoke on a slip shaft tho ,need to have good threads tapped in the shaft .
Comes off with a two jaw puller and impact just like an axle yoke .
Might have been easier just to trim a slip yoke and use a different seal .

Nice, that sounds like it'll get the job done. I may do a little hunting just to see the specific details on the two spline types, but sounds like it's good enough for govt work lol.

There's different "standard" tolerances depending on no slip, vs slip under no load (most bolt on yokes) and slip under load (slip yokes). Any machinist desk reference will have the details.

I'm aware of those different actual machining tolerances, believe I've seen them in the machinery handbook. But one would think that the two different slip fit examples wouldn't be a press fit onto each other, so I do still wonder if there's a pressure angle difference

 

[arse_sidewards]

Nice, that sounds like it'll get the job done. I may do a little hunting just to see the specific details on the two spline types, but sounds like it's good enough for govt work lol.


I'm aware of those different actual machining tolerances, believe I've seen them in the machinery handbook. But one would think that the two different slip fit examples wouldn't be a press fit onto each other, so I do still wonder if there's a pressure angle difference

Someone who cares more than me can look at those factors in the below image, figure out what would happen if GM "split the difference" on the male and female parts and if the resulting fitment from mix and matching between "slip under load" and "slip under no load" would be in the ballpark of "permanent fit"

Obviously this is 10spl and not 32 involute spline but still, it'll get you in the ballpark.

And FWIW Ford and stuff made for Ford doesn't have this problem. The shaft portion of the 31spl is the same, or close enough to not matter, whether fixed or slip.

 

[Tydes]

This 241 case should be plenty strong for the little Suzuki motor and power glide shorty .

Got any more details on the Suzuki/glide adapter?

 

[upside-down]

Made it myself in 2006 .
Shorty glides were the rage back then lol.
Glide is cool because you can get a real high stall converter for them , mine e is around 3400 .
I had one of the first atlas 4 speed t-cases mated to it , ended up running around the comps in high , just too much gearing .
New buggy probably comes in at 1700 pounds .
Jdm 16 valve sidekick motor with GSXR 38 mm and super long 180 degree header makes pretty good power for being so tiny .
From crank pully to new fixed yoke is 46" , shorter than the old comp buggy too .

 

[upside-down]

Shot of the old toyota axeled front engine buggy .

 

[Tydes]

Made it myself in 2006 .
Shorty glides were the rage back then lol.
Glide is cool because you can get a real high stall converter for them , mine e is around 3400 .
I had one of the first atlas 4 speed t-cases mated to it , ended up running around the comps in high , just too much gearing .
New buggy probably comes in at 1700 pounds .
Jdm 16 valve sidekick motor with GSXR 38 mm and super long 180 degree header makes pretty good power for being so tiny .
From crank pully to new fixed yoke is 46" , shorter than the old comp buggy too .

I remember that setup from pirate4x4 when you were samuraiguy. Cool you’re still wheeling Suzukis!

 

[upside-down]

Yes .
I'm excited to get this new rig on the trails around here .
Living up a mountain now .

 

[infernozx]

I did something similar a few weeks ago.

Noticed that the front yoke sorta kinda fit, but the splines were a few thou too large.

So I spun it in the lathe and fought it with carbide, then I cut it down and threaded the end for the same nut as the front.

I then cut the tail housing and machined it for the same seal that's in the front.

I won't lie, tail housing took two tries. First try ended up too short.

 

[upside-down]

Very nice !