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Toyota CV shaft

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J-Ron

Toyota CV shaft
« on: November 19, 2007, 11:55:58 AM »
i am estatic to say that i finally drove my zuki around after months of laying in pieces. my only problem is that my pinion angle is pretty damn high (pointed straight at the t-case(yeah i know, i messed up)) so i get rattled out of my seat. so i was thinking about putting in a toyota CV shaft from a 87 4runner.
is this the best thing i can do?
double joint goes towards the t-case?

appreciate the advice ;D
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Offline museboy07

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Re: Toyota CV shaft
« Reply #1 on: November 19, 2007, 03:02:36 PM »
So you wanna use a Yota cv shaft in place of your front drive shaft?  Sounds pretty cool but alot of fabrication work would probably need to be done.  How would you join the splined cv shaft with the yoke ends coming front the tcase and front diff ??  Also, is a yota cv even long enough?
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J-Ron

Re: Toyota CV shaft
« Reply #2 on: November 19, 2007, 09:39:36 PM »
i'd use the cv shaft in the rear, and possibly the front too. the shaft is actually too long in the rear and i haven't checked the front. i'm waiting for driveshaft adapters to bolt onto the t-case so i can use the yota shaft. i've heard that the cv shaft is better for the short and high angle so im trying to get some input on that.
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Offline sidekicksrock

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Re: Toyota CV shaft
« Reply #3 on: November 20, 2007, 06:55:03 AM »
Quote from: museboy07 on November 19, 2007, 03:02:36 PM
So you wanna use a Yota cv shaft in place of your front drive shaft?  Sounds pretty cool but alot of fabrication work would probably need to be done.  How would you join the splined cv shaft with the yoke ends coming front the tcase and front diff ??  Also, is a yota cv even long enough?

I think he is talking about a double cardigan drive shaft CV not a half shaft.

Quote from: J-Ron on November 19, 2007, 09:39:36 PM
I've heard that the cv shaft is better for the short and high angle so im trying to get some input on that.

You are correct the toy drive-shaft will operate at higher angles. You need to jack the truck up and determine what your maximum operating angles are going to be Once you know that then you can decide what configuration will work. I do not know what the max angle is on a toy drive shaft but I am sure someone here does.
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J-Ron

Re: Toyota CV shaft
« Reply #4 on: November 20, 2007, 05:49:26 PM »
yeah, im just waiting for those driveshaft adapters which i ordered over a month ago. im sure i want to do the toyota driveshafts by the way. im just curious as to how the cv shaft should be installed and if i should do it up front as well.
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Offline rockrat

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Re: Toyota CV shaft
« Reply #5 on: November 20, 2007, 06:49:09 PM »
Who did you order the adapters from.. I am the MFG and I have them on the shelf.
Rock 4X Fabrication,inc
shop 1-847-672-9653
or
cell
1-847-544-1823
-Scott
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Offline Amilla

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Re: Toyota CV shaft
« Reply #6 on: November 21, 2007, 05:03:52 PM »
79-85 Toyota pickup front drive shafts have a max angle of 35°.

86 and up Toyota front drive shafts have a man angle of 25°.
Though you can modify them to operate at a max of 35°

I am most likely going to do this same thing to the drive shaft that i came across, its an 87.

Here is a full overview on how to do this.
http://www.4x4wire.com/toyota/tech/cvmod/

Hope this information comes in handy

Amilla
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Offline rockrat

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Re: Toyota CV shaft
« Reply #7 on: November 22, 2007, 09:43:16 AM »
Quote from: Amilla on November 21, 2007, 05:03:52 PM
79-85 Toyota pickup front drive shafts have a max angle of 35°.

86 and up Toyota front drive shafts have a man angle of 25°.
Though you can modify them to operate at a max of 35°

I am most likely going to do this same thing to the drive shaft that i came across, its an 87.

Here is a full overview on how to do this.
http://www.4x4wire.com/toyota/tech/cvmod/

Hope this information comes in handy

Amilla


IFS 86 and up is 15 deg not 25, either way you still need to mod it. I recommend using the rear shafts(non cv) when going with Toy axles, and never use the CV on the front of a zuk with zuk axles. You have to point the pinion up so high that you throw the steering geometry out unless you turn the knuckles back.
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Offline Amilla

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Re: Toyota CV shaft
« Reply #8 on: November 22, 2007, 10:50:53 AM »
Quote from: rockrat on November 22, 2007, 09:43:16 AM
Quote from: Amilla on November 21, 2007, 05:03:52 PM
79-85 Toyota pickup front drive shafts have a max angle of 35°.

86 and up Toyota front drive shafts have a man angle of 25°.
Though you can modify them to operate at a max of 35°

I am most likely going to do this same thing to the drive shaft that i came across, its an 87.

Here is a full overview on how to do this.
http://www.4x4wire.com/toyota/tech/cvmod/

Hope this information comes in handy

Amilla


IFS 86 and up is 15 deg not 25, either way you still need to mod it. I recommend using the rear shafts(non cv) when going with Toy axles, and never use the CV on the front of a zuk with zuk axles. You have to point the pinion up so high that you throw the steering geometry out unless you turn the knuckles back.


Crap i was misinformed, wow i didn't know that it was that little of an angle! Might have to take my brothers spare 85 front shaft.  Thanks for the correction rockrat.


Rockrat, you say go with rear Toyota shafts, how come you don't recommend using a CV drive shaft?
Would i be better off to cut down a rear shaft than use a front CV for my rear axle? I will be running Toyota axles.

Thanks for the info

Amilla
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Offline rockrat

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Re: Toyota CV shaft
« Reply #9 on: November 23, 2007, 01:34:08 PM »
If you have a stock zuk case and Stock Zuk axles the CV shaft is perfect for the rear needing generaly zero modification (depending on lift and year shaft you purchace 79-83 being the shortest). Then use a  cut down newer IFS Non cv for the front (almost 42 deg of misalignment at the yoke).

 Now if you are going Toy axles, you will end up with a compound angle for the shaft with the centered rear. A Double cardon shaft is not meant for this application and should not be used. You will wear out the joint at the pinion side becasue it will spin at a different speed then the other 2. SO I recommend the newer IFS rear non cv (again) cut down.  Then do the same for the front. I am not saying that it wont work I have customers using the adapters and cv shafts, What I am saying is it is not 100% correct. Now the front you shoulld never use the cv unless your rig is stretched out severly. IF you install a CV in front you need to turn up the pinion so you dont destroy the shaft and keep vibes down.  When you do this you will goof the steering geometry up and the rig will drive for crap, Offroad who cares, on the street it would be a white knuckle ride. Otion 2 turn the knuckles to correct for the steering. SOmetimes easier said then done.

So there you have my take, I have read through the years guys sayng Scott says CV... I never said that for TOY axles. Now you have enough information to atleast make a sound choice on which way you can build it....
hope that helps
-Scott

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Offline Amilla

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Re: Toyota CV shaft
« Reply #10 on: November 23, 2007, 04:29:05 PM »
Im not going to be running a stock yota axle, im having one off-set by sky.
No more compound angle, so would i be safe to run the CV in the rear, as long as i roll the pinion back when i mount my perches.

Also one more question, does the pinon have to be rolled back to a specific degree or does it just have to be rolled back pointing the T-case?

Thanks for all the info


Amilla
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Offline rockrat

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Re: Toyota CV shaft
« Reply #11 on: November 23, 2007, 07:24:41 PM »
If you are doing Sky offset rear then you should be good. As for angle I set it directly at the case then roll it down 1 deg to 2 deg.. According to High angle driveline if you are within 3 deg you are good. I keep it down just so on take off you dont over rotate and get a vibe.
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J-Ron

Re: Toyota CV shaft
« Reply #12 on: November 23, 2007, 10:37:09 PM »
Thanks for all the info, you answered all my questions.
 
So, Rockrat, i ordered the adapters from rocky-road outfitters on september 14th and have been unreasonably patient with them. if you have some adapters sitting on your shelf, i would love nothing more than to buy them from you and recieve them in about a week... not three months...
the only problem is that i cannot find them on your website. do you think you could send me the link?
 thanks again
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Offline rockrat

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Re: Toyota CV shaft
« Reply #13 on: November 23, 2007, 10:58:44 PM »
You have a Pm
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Offline Amilla

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Re: Toyota CV shaft
« Reply #14 on: November 24, 2007, 08:26:27 AM »
Thanks a lot rockrat, you definitely did answer all my questions.

Sorry for somewhat hijackin the thread


Thanks a lot

Amilla
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