Anyone know the dimensions of a u-bolt? - Pirate4x4.Com : 4x4 and Off-Road Forum

DanH · 08-24-2001, 07:49 AM

I need to find some new U-Bolts for my axle swap...

Kind of hard to measure them when they're on the jeep...

It's a stock '87 axle, with add-a-leaf's in the spring pack...

any ideas?

LOPPY · 08-24-2001, 08:15 AM

Man, I have em all written down at home. But then again I would need to know what axle your talking about.

Just head to any auto parts store, preferably a NAPA or better. Give them year make and model and they can index it real quick.

DanH · 08-24-2001, 08:39 AM

Well, the other kicker, is that I have an add-a-leaf kit in the springs...so they have to be longer!

How can I get around this?

CSP · 08-24-2001, 08:57 AM

It sure would help to know what axle it is. Are you wanting the dimensions of your stock axle or the one you're swapping in?

[ 08-24-2001: Message edited by: cmegoup ]

DanH · 08-24-2001, 09:00 AM

Sorry, it's for the new axle, the '87 YJ Dana 30 and 35....

Thanks...

oldjeep · 08-24-2001, 09:00 AM

Quote:

Originally posted by DanH:
<STRONG>Well, the other kicker, is that I have an add-a-leaf kit in the springs...so they have to be longer!

How can I get around this?</STRONG>

Doesn't usually matter. Most replacement bolts are too long on purpose so you have to cut off what you don't need. Here's an idea for you. Try measuring the axle tube. If you can't figure out how to do that, hold a 2x4 or something on each side and measure the distance between them. Or just buy a couple, it's between 2 1/4 and 3 inches dependign on what axle you have.

DanH · 08-24-2001, 09:02 AM

I did some basic measuring. The guy at one store wanted the inside distance between the threads...

The rear axle has 4 same size U-Bolts. The front axle, on my '93 axle uses two different size bolts on each side. One is about 3.25" wide, the other is 2.5" wide. And they're about 7" tall.

The rears are 2.5 X 6.5" I think...

But this may all be different on the '87 axles, I don't know. I'm going to give Napa a holler.

TornadoTJ · 08-24-2001, 12:29 PM

Dan, you shouldn't have told them you were swapping in a D35... here it comes...

DanH · 08-24-2001, 12:35 PM

I know I know, it's a sin to do it. But it's practically FREE!! I've got money coming in on the old axles, so I'm getting a gear "upgrade" for nothing...also get to dump the c-clip axle!!

It's not really an "upgrade", it's a swap, crap for crap!!!

CSP · 08-24-2001, 02:02 PM

For the 30 the smaller one should have 2-1/2" between the bolts and the larger one should be 3-3/8". Don't have a clue about the 35. Do you still have your old u-bolts? They should be the same size so if you do take 'em with you to the parts store to compare the new ones against.

RockdogzYJ · 08-24-2001, 02:46 PM

Uh-oh.. another DanH in the Ranks! first there was Dan-H from El Dorado Hills and now DanH from Texas.. Zoinks!

RockdogzYJ · 08-24-2001, 02:47 PM

I was gonna reply to Dan-H and ask what the heck are you doing swapping in new axles with u-bols on your brand new TJ.. then I seen where youre from... different DanH..

Quote:

Originally posted by DanH:
<STRONG>I need to find some new U-Bolts for my axle swap...

Kind of hard to measure them when they're on the jeep...

It's a stock '87 axle, with add-a-leaf's in the spring pack...

any ideas?</STRONG>

Dan-H · 08-24-2001, 02:54 PM

yeah, like I'm gonna put a leaf sprung Dana 35 under my TJ <IMG SRC="smilies/rolleyes.gif" border="0">

I'm not sure I'd put a Dana 35 under a trailer <IMG SRC="smilies/thefinger.gif" border="0">

- Dan

08-24-2001, 07:49 AM	#1 (permalink)
DanH Registered User Join Date: Apr 2001 Member # 4145 Location: Lewisville, TX, USA Posts: 90	Anyone know the dimensions of a u-bolt? I need to find some new U-Bolts for my axle swap... Kind of hard to measure them when they're on the jeep... It's a stock '87 axle, with add-a-leaf's in the spring pack... any ideas?

08-24-2001, 08:15 AM	#2 (permalink)
LOPPY Zeus of the Sluice Join Date: Jun 2000 Member # 1108 Location: Nor Cal Posts: 4,201	Man, I have em all written down at home. But then again I would need to know what axle your talking about. Just head to any auto parts store, preferably a NAPA or better. Give them year make and model and they can index it real quick. __________________ Those who forge their swords into plows will plow for those who do not.

08-24-2001, 12:29 PM	#8 (permalink)
TornadoTJ Registered User Join Date: Mar 2001 Member # 3893 Location: Dallas, Texas Posts: 1,078	Dan, you shouldn't have told them you were swapping in a D35... here it comes... __________________ '97 TJ - D60 Ford Front, D60 E350 rear, build is going slowly... '06 Dodge CTD 4x4 QuadCab

08-24-2001, 02:54 PM	#13 (permalink)
Dan-H Registered User Join Date: May 2000 Member # 792 Location: El Dorado County CA Posts: 2,176	yeah, like I'm gonna put a leaf sprung Dana 35 under my TJ <IMG SRC="smilies/rolleyes.gif" border="0"> I'm not sure I'd put a Dana 35 under a trailer <IMG SRC="smilies/thefinger.gif" border="0"> - Dan __________________ 01 TJ

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08-24-2001, 08:39 AM	#3 (permalink)
DanH Registered User Join Date: Apr 2001 Member # 4145 Location: Lewisville, TX, USA Posts: 90	Well, the other kicker, is that I have an add-a-leaf kit in the springs...so they have to be longer! How can I get around this?

08-24-2001, 08:57 AM	#4 (permalink)
CSP Registered User Join Date: Aug 2000 Member # 1533 Location: Parker, CO Posts: 2,780	It sure would help to know what axle it is. Are you wanting the dimensions of your stock axle or the one you're swapping in? [ 08-24-2001: Message edited by: cmegoup ]

08-24-2001, 09:00 AM	#5 (permalink)
DanH Registered User Join Date: Apr 2001 Member # 4145 Location: Lewisville, TX, USA Posts: 90	Sorry, it's for the new axle, the '87 YJ Dana 30 and 35.... Thanks...

08-24-2001, 09:02 AM	#7 (permalink)
DanH Registered User Join Date: Apr 2001 Member # 4145 Location: Lewisville, TX, USA Posts: 90	I did some basic measuring. The guy at one store wanted the inside distance between the threads... The rear axle has 4 same size U-Bolts. The front axle, on my '93 axle uses two different size bolts on each side. One is about 3.25" wide, the other is 2.5" wide. And they're about 7" tall. The rears are 2.5 X 6.5" I think... But this may all be different on the '87 axles, I don't know. I'm going to give Napa a holler.

08-24-2001, 12:35 PM	#9 (permalink)
DanH Registered User Join Date: Apr 2001 Member # 4145 Location: Lewisville, TX, USA Posts: 90	I know I know, it's a sin to do it. But it's practically FREE!! I've got money coming in on the old axles, so I'm getting a gear "upgrade" for nothing...also get to dump the c-clip axle!! It's not really an "upgrade", it's a swap, crap for crap!!!

08-24-2001, 02:02 PM	#10 (permalink)
CSP Registered User Join Date: Aug 2000 Member # 1533 Location: Parker, CO Posts: 2,780	For the 30 the smaller one should have 2-1/2" between the bolts and the larger one should be 3-3/8". Don't have a clue about the 35. Do you still have your old u-bolts? They should be the same size so if you do take 'em with you to the parts store to compare the new ones against.

08-24-2001, 02:46 PM	#11 (permalink)
RockdogzYJ Registered User Join Date: Feb 2001 Member # 3218 Location: Elk Grove, CA Posts: 163	Uh-oh.. another DanH in the Ranks! first there was Dan-H from El Dorado Hills and now DanH from Texas.. Zoinks!