Custom driveshafts

04andy07

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Anybody know of any local shops/ locations Where they make and or have custom driveshafts?

Please and thank you in advance
 

Mr_Roboto

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Gotta give these guys a call and see what it'll cost to do a shaft for the van. Need to clean it up first though.
 

GearsForYourRears

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Another +1 for Suburban Driveline. Phil is a good guy and they are a customer of mine. They also sponsor the Monster Jam and have Grave Digger at thier shop every year!

I've also heard good things about Midwest Driveshaft in St. Charles. 630-513-9292
 

daturbosix

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suburban is over priced if you ask me.

call up midwest driveshaft in st charels.
 

Mr_Roboto

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Question for you guys, how much slip do I need exactly? I have a 9" if I get to a short yoke instead of a long one I think I'd have ~5/8 inch clearance. Just debating if I should try a yoke versus biting the bullet and getting it cut.
 

daturbosix

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call a driveshaft shop and ask. that really depends on what trans you have any what style output shaft you have in the trans.
 

Mr_Roboto

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Crap, was afraid of that in a way. With the under drive I have it could be a real bear to figure that out. It has a bolt on yoke so the slip is in the axle its self.
 

Mr_Roboto

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ok, so this is what I came up with. First off, I took some measurements. I took the height difference from the trans yoke to the 9" yoke as compared to the output of the under drive unit. I got 4 1/8 inch difference. Putting a plum bob on the rear yoke and measuring to the front one I get 39.375. At this point, I'm going to throw out some info:

1)Assuming I get the yoke, I get 40.375 because the yoke being shorter thus increasing the spacing.

2)We know that the distance between the output and the axle yoke will stay pretty much the same. Even though it's live axle, it should be fairly well located.

3)I can tell the worse case scenario that the output yoke goes above the height of the pinion yoke, which means that one leg of the triangle becomes zero. What this means is the distance between the two yokes is ultimately going to be the distance between them. As it goes back up it forms a new triangle, and the distance between them will get progressively longer again the further higher than the output yoke the axle yoke goes.

4)Due to Mr. Pythagoras having a theorem that says X^2+Y^2=Z^2 referring to the lengths of the sides of a triangle, we can break this down into a mathematical problem.

My margin is 5/8 inch right now assuming I got a short yoke again.

40.375^2+4.125^2=Z^2 for the unloaded, fully extended length.
1630.140625+17.015625=1647.15625=Z^2
sqrt(1647.15625)=Z=40.585172785144083947072682640252
40.5851727-40.375=0.2101

Based on this math, I should have over 100% margin on 5/8 inch.
 

jvert

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Good post, not at that point in my build but hopefully be there in the future.

Thanks for the contacts.
 

HILROD

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Suburban will tell you exacty what you need and how to measure.
 

Wrencher

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Strange engineering in Morton grove makes them as well.
Chrome moly, mild steel etc, it's another option.
 

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