This looks like the 7" working travel spline from driveshaftsuperstore. (http://www.driveshaftsuperstore.com/Drive_shaft_long_slip_yoke_and_spline.htm). They tell me it's all steel (no plastic coating).
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They offer to machine it down for any size tubing 3" or less. I think the intended application may be for something mid-ship for a 2-piece driveline. Since they have to machine it in every case, they let you choose the diameter for no extra charge.
I've been talking to local shops and none of them want to use full-spline since it doesn't seal very well. They also refuse to find these kinds of parts for me and if I carry them in, they will only weld and balance for cash - no receipt.
Why don't you just call Tom woods and be done?
Using a 10.5" spline will add $100 to the cost of most drive shafts. Using up to 22.5" of spline will add $150 to the cost of most drive shafts.
There are a few down sides to this type of shaft that you need to be aware of. Among them are cost, service procedures, longevity and safety. The drive shaft is substantially heavier than most other drive shafts and is not recommended for high speeds. At higher speeds, this extra mass will create excessive forces on the output of the transfer case and the pinion.
View attachment 211482
This shaft was done by Jesse at High Angle. it took us awhile to get a good working seal, but this one has a 1000 race miles. It isn't cheap, at over $700, but it is the best shaft that I have found in 15 years of looking.
Because:
a) nobody has a perfect solution
b) apparently I prefer to waste time scheming instead of shipping
I have actually been talking to them about shipping a shaft out for rebuild. But there doesn't seem be anything offering all:
From Woods:
- Travel of 6" or more
- Will balance at high speed
- Long-term durability
Has anybody called Adams Driveshafts? I have heard really great things about them. http://www.adamsdriveshaftoffroad.com/
I don't want to drive it in the snow, but I take it up North every November.
everything I've seen from them is the short slip heep JK stuff.
Sacramento Driveline will get my business again.
Their are guys on here that have had them built. It is not only jeep stuff.
Hubs locked, at high speed?
People said I was crazy last time I mentioned this, but maybe it would be a worthwhile trade to move the shackle to the front. All the old Jeeps and Scouts are that way. The main argument I heard against it was that people like to ram them into rocks or something. 8" slip requirement drops to maybe 2", plus the angles don't get steep.
There's also the dream of high speed in the sand.
)Yeah, you leave the hubs locked, slide the shifter to 2 when the road is dry. When you turn onto a side road, parking lot, etc., you shift to 4. Then back to 2 again later. Stopping every time to lock/unlock the hubs would be crazy. 4x4 on dry roads makes the truck track weird and is hard on stuff. 2x4 on ice with swampers doesn't work. So yeah, part of the time is highway speed. I suppose they don't do this in AZ.
There's also the dream of high speed in the sand.