square toyota drive shaft

88yota

88yota

Well-Known Member
Joined
Oct 31, 2009
Location
High Point, NC
did the ruf and 63 swap as well as dual cases. any advice on a square front drive shaft? Not wanting to spend the 200 dollars for a long spline kit. Any suggestions?
 
i noticed that you put the female end towards to axle, any particular reason for putting it that way?
 
88yota said:
i noticed that you put the female end towards to axle, any particular reason for putting it that way?
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i do that b/c the larger dia shaft can take a beating and you dont have to worrie about it not slipping back in when you grind it for a few mins on a rock or 12

and as far as size not sure ill have to measure it i made two back to back one for me and one for my buddy eric
 
I used 2" and 2 1/2" tube when I made mine. I put my big end on top so water would dump out. If a rock does chew on the corners of the smaller tube, the big tube will smooth them back out on the next compression.
 
I have heard of both ways of putting the larger tube. could you do it with the larger tube at the bottom to help with the rocks and drill a small hole for the water to come out? Also did you have any trouble with 'rattling' between the two tubes while driving in 4x4?
 
Use seamed 2 1/2" then grind a slot in the 2"
Otherwise it will rattle like hell.

Drill a drain hole either way you do it.

I've always use 2 1/2" & 2" but the truck I have now has 1 1/2" and 1" and I have no issues with it.
 
i have 2.5" and 2" hitch receiver tubing and it works good i can drive to 70 with no vibrations i put grease fittings in mine but iyou can hear it rattle at low speeds or when coasting
 
Its gonna rattle, but with everything else rattling on my old rig, i hardly noticed it. I have heard that you can put small spot welds on the outside of the smaller tube and grind them down until the tube is tight to keep things quieter.
 
i wondered about higher speeds with these, like a mud situation where you have to get in the throttle to make it through. never thought it would be ok at 70 mph lol
 
I think if you are diggin in the mud, vibration will be the last thing you are thinking about. The square tube dosent have that much rotational slop, mostly directional. I think if that much rpm is being transferred, the vibration would mostly cancel itself out.
 
When I did a square tube DS I did lay a bead all the way down on two sides, and ground it down till it fit tight. I grease it as best I could, but always wanted to put a grease fitting in so I could get better coverage. I figured to drill and tap a zerk fitting, fill it, and then remove the fitting since it would just get knocked off anyway.

I changed up and went to a PTO style shaft, more expensive, but I liked it much better
 
so is the reason for building a square over log spline due to the cost difference?
 
Pretty much. The TG long spline kit is a couple hundred bucks. You can build a square tube shaft for a few bucks or free if you have the steel already.
 
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