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np 205 slip yoke to fixed conversion

trevmountain

trevmountain

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I am in the process of swapping over my slip yoke 205 to a fixed yoke from a donor NP 205. I couldn't see how to just swap the shafts themselves and so I pulled the entire unit out. In the process all these little cylinders fell out. It's on the inside of the case where the gears mate up inside the transfer case.

You can see in the pics the old slip yoke is on the left and the new fixed yoke is on the right. For the life of me I can't figure out how these can be set into the cylinder and stay in place long enough to slide it onto the inner shaft. You can see that I started to set them into the cylinder in one of the pics....

Help

np 205 1.JPG

np 205 2.JPG

np 205 4.JPG
 
those are just needle bearings. When I did mine I stood it up on end and coated the inside collar with some synthetic caliper grease (not a ton) and then the needle bearings stuck to that long enough to get them all in there and drop the input shaft back in there. Pretty simple but makes you :eek1: the first time.
 
That's what I figured but just wanted to check if there was something even easier.

Needle bearings, ok that's what there called. Nice to have the terminology for this stuff. You can see why I took a picture eh!

Thanks, I'll try that tomorrow.
 
trevmountain said:
That's what I figured but just wanted to check if there was something even easier.

Needle bearings, ok that's what there called. Nice to have the terminology for this stuff. You can see why I took a picture eh!

Thanks, I'll try that tomorrow.
Click to expand...

No worries bro, that's what we're here for! That's the easiest way I know of, only takes a minute or two and you don't get too dirty with it. IIRC I used some small needle nose pliers to make sure I wasn't knocking them all over the place when putting them in.

On that note I need to swap front outputs on mine again, so I get to have the same fun again!:rolleyes:
 
Use grease to hold them in place BUT you first need to make sure you get the washer pulled up first (there should be a washer just under the wire retaining clip and then the needle bearings under the washer.
 
Ok great. Thank you for confirming that. I actually was thinking the washer went in first. Everything fell out and I didn't know quite where things went.

Again thank you!
 
I was just going to post a question about this.

I have a slip yoke on my late model 205. Can I just find a fixed yoke model and swap the rear outputs? Any particular years that won't match?
A SYE is $250 and I can definitely pick up an old 205 for way less than that.

/hijack off
 
MTBLAZER89 said:
I was just going to post a question about this.

I have a slip yoke on my late model 205. Can I just find a fixed yoke model and swap the rear outputs? Any particular years that won't match?
A SYE is $250 and I can definitely pick up an old 205 for way less than that.

/hijack off
Click to expand...

You may want to take this with a grain of salt, so if I'm wrong I appologize but I don't see why that wouldn't work. Unless the new yoke has a different u-joint than your current one. That being said, you have to drop the case to switch the shafts, so why not just put the new case in there and be done? I swapped input shafts on mine when I swapped to the 4 speed because the newer case didn't have the torque mount on the side, but I would assume everything newer would be the same:dunno:
 
dont need to drop the tcase to install the tail shaft.

when converting you also NEED a new drive shaft to work with fixed yoke tcase.

and basicly any fixed yoke rear from a gm will bolt in no problems.

but some old ones had speedo cable drive in diffrent clocking position.
 
Ok cool I was hoping that they were interchangeable.

My 205 is attached to a TH400 on the garage floor so it will get disassembled and cleaned up. Swap to fixed yoke, swap in short 32 spline input, twin stick and possibly do the 32 spline output. Not sure if that's necessary right now.

241/205 doubler is the reason I got the 205.
 
To the OP, you don't worry about what I have to type because you have a late model fix york.
I'm just tossing this in for future searches.
The early model fix yoke had a speedo gear that is made of steel and have smooth bore. The shaft and speedo don't have splines like later model stuff. What keeps the speedo gear from spinning is the gear is pinched between a spacer, the bearing and yoke. Be sure to swap shaft and speedo gear together when using the early model stuff.

NP205-output-5.jpg


NP205-output-2.jpg
 
Ya the swap is easy. I used the thickest tacky grease I could find to hold those little needle basteds in place. Worked like magic the first time. Other than that super straight forward.
 
Vaseline works fine to hold bearings and stuff in place for assembly as well.
 
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