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post #1 of (permalink) Old 09-25-2003, 01:41 PM Thread Starter
 
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Which design for drive shaft spacer? 4 or 8 hole?

Hi there,

I want to build a 1 1/4" drive shaft spacer. I have looked on several manufacturer's homepages and found different designs.
Some have 4 holes and just use longer screws. Some have 8 holes, some have threads in the alloy spacer.

I would like to use the simple design with 4 holes and long screws going through tc-flange, spacer and drive shaft flange.
Is there any down side to this design such as self untightening of bolts etc.? Can I use the spacer on the axle side (better to clear the exhaust manifolt)?

I appreciate all your comments and general info on how to build a spacer.

Thanks in advance,

norbert
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post #2 of (permalink) Old 09-25-2003, 01:56 PM
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Re: Which design for drive shaft spacer? 4 or 8 hole?

Why 1-1/4" seams a little exsessive in length. how much lft do you have are you putting it on front or rear, stock drive shaft.. more info needed for an apropriate answer
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post #3 of (permalink) Old 09-25-2003, 07:24 PM
 
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Re: Which design for drive shaft spacer? 4 or 8 ho

I made 1 1/4 spacers in the shop and used the 8 whole design..the other 4 holes are just to lighten the material but you gotta make sure you index everything..you dont wanna get any vibration.. I have a picture but its to large for an attachment. I dont know if its on my website but you can look there...www.geocities.com/toober03
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post #4 of (permalink) Old 09-25-2003, 07:50 PM
 
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Re: Which design for drive shaft spacer? 4 or 8 hole?

Anyone ever see the one that Justin Fender was using that was homemade out of ABS plastic??? Swore it worked great, but it sounded a bit dangerous to me!

Sean (Scared of anyone that uses plasctic in their driveline!) DeVinney
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post #5 of (permalink) Old 09-25-2003, 08:16 PM
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Re: Which design for drive shaft spacer? 4 or 8 hole?

Speaking of driveline addins did you get the package Sean
-Scott
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post #6 of (permalink) Old 09-25-2003, 10:13 PM
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Re: Which design for drive shaft spacer? 4 or 8 hole?

Save yourself a lot of [img]images/graemlins/bs.gif[/img] and talk to this guy RockRat. Check this out Adapters .
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post #7 of (permalink) Old 09-26-2003, 03:24 AM Thread Starter
 
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Re: Which design for drive shaft spacer? 4 or 8 hole?

Hi,

thanks for all your answers. The reason for a 1 1/4" spacer is that I want to compensate that I moved the front axle forward. I need to clear the oil pan of an European Kick's 2.0l V6. I addition I have 2" lift.
I am planning to run stock axles and drive shafts until something breaks and/or I am fabbing a new suspension.
I do not want to buy a spacer as I thik fabbing your own stuff is fun.

Did you ever have bad experiences with the following design: 8 holes, threads in the spacer, aluminum material? Will the engine torque pull any threads in an aluminum spacer?

Regards,

norbert
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post #8 of (permalink) Old 09-26-2003, 05:57 AM
 
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Re: Which design for drive shaft spacer? 4 or 8 hole?

Yes Sir! Got the adapter on Thursday.....My customer will be happy he can get his D/C shaft in this weekend!

Thanks Scott!

Sean
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post #9 of (permalink) Old 09-26-2003, 06:44 AM
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Re: Which design for drive shaft spacer? 4 or 8 hole?

No rpoblem I am making the small pinion sides today should have them turned, milled and taped by Monday.. if you need smalls.
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post #10 of (permalink) Old 09-26-2003, 07:05 AM
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Re: Which design for drive shaft spacer? 4 or 8 hole?

</font><blockquote><font class="small">In reply to:</font><hr />
Hi,

thanks for all your answers. The reason for a 1 1/4" spacer is that I want to compensate that I moved the front axle forward. I need to clear the oil pan of an European Kick's 2.0l V6. I addition I have 2" lift.
I am planning to run stock axles and drive shafts until something breaks and/or I am fabbing a new suspension.
I do not want to buy a spacer as I thik fabbing your own stuff is fun.

Did you ever have bad experiences with the following design: 8 holes, threads in the spacer, aluminum material? Will the engine torque pull any threads in an aluminum spacer?

Regards,

norbert



[/ QUOTE ]

If you are doing straight through holes(SPACER) just to acomidate longer stock shaft you should not have a problem with strength, allthough you also put the joint in a better position to bind, depending on how far you move the front axle. As far as your ?? on Aluminum and threads there is only one person that is threading aluminum for a shaft (adapter) that I know off and thats me and it is patent. I do not know of 1 failure do to rotationl torque on 1 of mine as of yet. The material is 6061 and the threads are rolled instead of tapped (30%) stronger thread over the conventional tap. The standard dimension on them is 1/2" thick I have made a few special runs of 3/4" for a few people. The only reason you would thread would be to accomidate a larger flange shaft then what is physicaly larger then the t-case or pinion flange other wise just drill straight through. Most kits with a 4-5" lift use two 1/2" in the rear and a 3/4" in the front I ran that on my zuk with YJ's and 5.5" sproa with out any problems. I didnt have a prob until I went S/R then I just fabbed a longer shaft and dumped the spacer. Hope this helps some Last I would not make an a spacer 1-1/4" thick and tap it for both sides, straight drill it and you should be fine. And yes fabbing stuff you self is great the only reason I started doing this was to get a larger shaft on a zuk, I did alot of hunting and pecking around for info and no other vender at the time seamed to be interested in the design. So I ran with it and the customer base speaks for itself.. What ever you do remember one thing KIS keep it simple and it shoud work
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