Homemade Driveshaft Balancing Q's... JCR guys?

Haggar · November 9th, 2005, 09:41 AM

I'm building a new driveshaft next week, and I know the guys at JCR have built some. On old MJ posts, Monkeyevil mentioned a method for balancing without weights, but didn't mention said method..

care to share with me? Sand in the tube, or something else?

Thanks!

Haggar

KILLER"B"468 · November 9th, 2005, 10:14 AM

Jason I built mine for the both "B"'s and they went well. I just had them trued in to "+,-" .002 out of round. I never had a vibe from the shaft itself. If you need to balance more. Then you could move a worm clamp around to see if it gets better or worse.

GMCsonoma94 · November 9th, 2005, 11:15 AM

if you have a steel shaft drill and tap a hole in the shaft and pour half a gallon or so of antifreeze in the shaft and then put a pipe plug in. i guess you could do the same with an aluminum shaft if you welded a nut or somethin.

Mclovin · November 9th, 2005, 11:31 AM

Quote:

Originally Posted by GMCsonoma94

if you have a steel shaft drill and tap a hole in the shaft and pour half a gallon or so of antifreeze in the shaft and then put a pipe plug in. i guess you could do the same with an aluminum shaft if you welded a nut or somethin.

If you are being serious... Why antifreeze ???

My friend dave made a jig to true his up out of some casters

Gr8archer · November 9th, 2005, 11:51 AM

Quote:

Originally Posted by Muddinguy

If you are being serious... Why antifreeze ???

Probibly so it dosn't freeze when it gets cold...

Haggar · November 9th, 2005, 12:14 PM

What material did you use, Bill... DOM?

Grandman · November 9th, 2005, 01:50 PM

1st off any thing put in the inside the shaft is going to cause more problems then it solves . Centrifugal force will bit your butt at relativly low speeds .

I have built shafts for the ZJ and shakers Blazer . nevether has any vibrations at road speed .

Make sure your u joints are timed when you put it together . Ujoints must run together not a 1/4 turn out of sink . That is the number 2 thing i seen cause vibrations on a shaft .

U joints have a hormonic , they need to cancel each other out . note how the yolks are placed in relation to each other before seperating the shaft .

Haggar · November 9th, 2005, 02:02 PM

Yup know that.. will use an angle finder to put them in correct phase.

What have you used for tubing? DOM? HREW? Pipe?

Front is goin gto be a square driveline, but Ineed to shorten the rear 4", and the existing tube can't just be cut and rewelded. Need to returb the whole thing..

Monkeyevil · November 9th, 2005, 02:16 PM

i tack em as straight as I can and mount them in the vehicle.

With a peice of chalk and a steady hand, barely touch the chaulk to the shaft (at each end) and have someone spin a tire. Where you see a chalk line is an out of round spot. Hit it with a hammer there and run the chalk line again.

Your looking for a full band of claulk around the shaft with no movement in your hand. That means the shaft is true at that end.

Do the same for the other side.

Now your 95% sure your in round.

GMCsonoma94 · November 9th, 2005, 03:17 PM

Quote:

Originally Posted by Muddinguy

If you are being serious... Why antifreeze ???

My friend dave made a jig to true his up out of some casters

its an old school trick that i was told about, i havent tryed it but i have heard it works pretty good. i think the antifreeze was already addressed.

Bones · November 9th, 2005, 03:30 PM

i always added about .25 cup of ATF to the tube and welded the hole back over. Not enough to create serious cent force. If .25 cup isn't enough, you have more issues than ATF will fix

brimy311 · November 9th, 2005, 04:59 PM

are you using toytoa d-shafts? If so, I can give you the DOM size you need for a press fit, or if you can't find it cheap enough, we can order you some....

Grandman · November 9th, 2005, 07:03 PM

I went to the local metal shop and bought regular drive shaft tube . They build shafts so they had many sizez in stock .

roger · November 9th, 2005, 08:30 PM

do it your self drive sahaft

http://www.4x4wire.com/jeep/tech/shaft/diydriveshaft/

Haggar · November 9th, 2005, 09:37 PM

Yes, building a rear toyota shaft. I haven't measured it yet, looks like around 2.5" or so..

brimy311 · November 9th, 2005, 10:44 PM

i used like 2 7/8 with 7/32 wall(DOM of coarse)...i believe....let me check my book tomarrow at and post back.

November 9th, 2005, 09:41 AM	#1
Haggar High Flush Join Date: 11-06-05 Location: Lake Orion Posts: 11,279 iTrader: (10)	Homemade Driveshaft Balancing Q's... JCR guys? I'm building a new driveshaft next week, and I know the guys at JCR have built some. On old MJ posts, Monkeyevil mentioned a method for balancing without weights, but didn't mention said method.. care to share with me? Sand in the tube, or something else? Thanks! Haggar

November 9th, 2005, 10:14 AM	#2
KILLER"B"468 Time for a nap... Join Date: 11-06-05 Location: Hendersonville Tn. Posts: 6,797 iTrader: (11)	Jason I built mine for the both "B"'s and they went well. I just had them trued in to "+,-" .002 out of round. I never had a vibe from the shaft itself. If you need to balance more. Then you could move a worm clamp around to see if it gets better or worse. __________________ I cut the hole twice and it's still to big MEMBER OF: SWAMP STOMPER'S 4x4 CLUB UNITED FOUR WHEEL DRIVE ASSOC. DIXIE CRAWLERS 4x4 CLUB

November 9th, 2005, 02:16 PM	#9
Monkeyevil I love you. Join Date: 11-05-05 Location: Kalamazoo, MI Posts: 5,862 iTrader: (6)	i tack em as straight as I can and mount them in the vehicle. With a peice of chalk and a steady hand, barely touch the chaulk to the shaft (at each end) and have someone spin a tire. Where you see a chalk line is an out of round spot. Hit it with a hammer there and run the chalk line again. Your looking for a full band of claulk around the shaft with no movement in your hand. That means the shaft is true at that end. Do the same for the other side. Now your 95% sure your in round. __________________ JcrOffroad The U.S. economy has diabetes. Eat a cookie and settle the hell down.

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November 9th, 2005, 11:15 AM	#3
GMCsonoma94 1 wheel peel Join Date: 11-06-05 Location: michigan Posts: 1,577 iTrader: (0)	if you have a steel shaft drill and tap a hole in the shaft and pour half a gallon or so of antifreeze in the shaft and then put a pipe plug in. i guess you could do the same with an aluminum shaft if you welded a nut or somethin.

November 9th, 2005, 12:14 PM	#6
Haggar High Flush Join Date: 11-06-05 Location: Lake Orion Posts: 11,279 iTrader: (10)	What material did you use, Bill... DOM?

November 9th, 2005, 01:50 PM	#7
Grandman do i look old ! Join Date: 11-05-05 Location: West Branch Mi Posts: 9,867 iTrader: (7)	1st off any thing put in the inside the shaft is going to cause more problems then it solves . Centrifugal force will bit your butt at relativly low speeds . I have built shafts for the ZJ and shakers Blazer . nevether has any vibrations at road speed . Make sure your u joints are timed when you put it together . Ujoints must run together not a 1/4 turn out of sink . That is the number 2 thing i seen cause vibrations on a shaft . U joints have a hormonic , they need to cancel each other out . note how the yolks are placed in relation to each other before seperating the shaft .

November 9th, 2005, 02:02 PM	#8
Haggar High Flush Join Date: 11-06-05 Location: Lake Orion Posts: 11,279 iTrader: (10)	Yup know that.. will use an angle finder to put them in correct phase. What have you used for tubing? DOM? HREW? Pipe? Front is goin gto be a square driveline, but Ineed to shorten the rear 4", and the existing tube can't just be cut and rewelded. Need to returb the whole thing..

November 9th, 2005, 04:59 PM	#12
brimy311 Jive Turkey Join Date: 11-05-05 Location: Kzoo, mi Posts: 2,257 iTrader: (24)	are you using toytoa d-shafts? If so, I can give you the DOM size you need for a press fit, or if you can't find it cheap enough, we can order you some....

November 9th, 2005, 07:03 PM	#13
Grandman do i look old ! Join Date: 11-05-05 Location: West Branch Mi Posts: 9,867 iTrader: (7)	I went to the local metal shop and bought regular drive shaft tube . They build shafts so they had many sizez in stock .

November 9th, 2005, 08:30 PM	#14
roger Senior Member Join Date: 11-04-05 Location: east china Posts: 753 iTrader: (10)	do it your self drive sahaft http://www.4x4wire.com/jeep/tech/shaft/diydriveshaft/

November 9th, 2005, 09:37 PM	#15
Haggar High Flush Join Date: 11-06-05 Location: Lake Orion Posts: 11,279 iTrader: (10)	Yes, building a rear toyota shaft. I haven't measured it yet, looks like around 2.5" or so..

November 9th, 2005, 10:44 PM	#16
brimy311 Jive Turkey Join Date: 11-05-05 Location: Kzoo, mi Posts: 2,257 iTrader: (24)	i used like 2 7/8 with 7/32 wall(DOM of coarse)...i believe....let me check my book tomarrow at and post back.