Early bronco 9" bend axle? - Pirate4x4.Com : 4x4 and Off-Road Forum

AJFC · 02-17-2012, 08:53 AM

Hello, I have a problem with my ford 9" was leaking bad and after review I have my doub about the axleshaft being bend, the drum was rubbing against the backing plate......how can I make sure the axlexhaft is straight?

tnx for your advice.

dieselboy740 · 02-17-2012, 08:56 AM

Get a new axle and truss it. Common sense.
If you drove with a bent housing you may have screwed up the splines on your axle shaft and spider gear. Junkyard a new axle. Ive bent several 1/2ton housings and pulled axle tubes on 8.8s.

AJFC · 02-17-2012, 09:34 AM

The other axleshaft is fine, is just one and the splines look fine.....but I have heard the flange of the axleshaft some time bends....I dont know how to inspect that...

comments??

broncdawg · 02-17-2012, 03:52 PM

Roll the axle on your garage floor and watch the flange??? Flanges bend pretty easyand more than likely the problem.

Fordman500 · 02-17-2012, 05:38 PM

If you have a dial indicator you could simply spin the axle in the housing and watch runout. If the housing is bent that can be fixed.

dahoyle · 02-18-2012, 01:49 AM

Bearings?

4x4prepper · 02-18-2012, 08:49 AM

If all else fails, buy a bearing, remove the axle, and push it into the housing and try moving it around. Sometimes the housing itself is just worn/hallowed out. If it is you can stop the leak for a while, but, not fix the problem.

Jack the leaking side way up, throughly clean where the bearing mounts, use red RTV along the bearing mounting surface, install the axle, let it sit overnight. I took a MIG welder and touched mine up on a very low setting.

RKDxpress · 02-18-2012, 03:48 PM

Junk the 9 inch get a full floater. (Dana 60) I've had the axle shaft break at the bearing/flange lost the wheel crashed the truck.

AJFC · 02-18-2012, 07:46 PM

Wtf???!!! really??!! I always believed the 9" was strong.....did you have a 31 spline axle?

tnx for the commnet

RKDxpress · 02-19-2012, 04:51 AM

No 28 spline and 38" tires but I had rebuilt the diff, hhad new bearings pressed on with new brakes and drums. Nine inch is a quick change axel on the track but still a light weight 1/2 ton axle. My 2 cents

xltbeast · 02-19-2012, 05:46 AM

Quote:

Originally Posted by RKDxpress

Junk the 9 inch get a full floater. (Dana 60) I've had the axle shaft break at the bearing/flange lost the wheel crashed the truck.

Well since it is in an EB the chance of finding a narrow Dana 60 is slim to none. So that means he would have to go full width. Plus you can make the 9' FF if you want. One anecdotal story shouldn't make you do anything.

The 9" is plenty strong with the right modifications and some commonsense. Obviously it sounds like you need a truss and possibly a new housing. What year is your bronco? if it is earlier then this is a good time to swap in a big bearing 76'-77'. then do yourself a favor and search a little on 9 inch upgrades. after you learn some stuff decide for yourself what upgrades you need and don't

02-17-2012, 08:53 AM	#1 (permalink)
AJFC Registered User Join Date: Sep 2009 Member # 141634 Posts: 14	Early bronco 9" bend axle? Hello, I have a problem with my ford 9" was leaking bad and after review I have my doub about the axleshaft being bend, the drum was rubbing against the backing plate......how can I make sure the axlexhaft is straight? tnx for your advice.

02-17-2012, 08:56 AM	#2 (permalink)
dieselboy740 Rock God Join Date: Sep 2010 Member # 168108 Location: Ramona Posts: 1,311	Get a new axle and truss it. Common sense. If you drove with a bent housing you may have screwed up the splines on your axle shaft and spider gear. Junkyard a new axle. Ive bent several 1/2ton housings and pulled axle tubes on 8.8s. __________________ 97' f-250, 7.3psd, extracab, 30" out of frame, dana 60 e-locked, 10.25", rear disc conv, 14'' profender shocks, 37s dbl beadlocks, intake, 3" dp to 5", dpf5 tuner, 12k winch '90 f-250 project, boat sides, 3/4 link, cage etc '91 Volvo 940se holset turbo, olive drab, lifted rally car Last edited by dieselboy740; 02-17-2012 at 08:59 AM.

02-17-2012, 03:52 PM	#4 (permalink)
broncdawg Wheeler Join Date: Jan 2005 Member # 42245 Location: Bishop, CA Posts: 440	Roll the axle on your garage floor and watch the flange??? Flanges bend pretty easyand more than likely the problem. __________________ 77' Bronco,5.0 roller,Klune 4:1,37s,Wristed radius arm / 85' Runner-5.29s,Detroits / 79 F350 4x4

02-17-2012, 05:38 PM	#5 (permalink)
Fordman500 Rock God Join Date: Oct 2005 Member # 56456 Location: San Jose, CA Posts: 1,580	If you have a dial indicator you could simply spin the axle in the housing and watch runout. If the housing is bent that can be fixed. __________________ 74 f100, 4bt, 3link hp 60/14 bolt, welded f/r np435/205

02-18-2012, 01:49 AM	#6 (permalink)
dahoyle Registered User Join Date: Dec 2006 Member # 83920 Location: What day is it? Posts: 1,872	Bearings? __________________ This isn't meant to be a flame job, but Jesus, do you guys ever read or search? Do you suppose your question has already been answered somewhere? Look it up for your fuckin self.

02-17-2012, 09:34 AM	#3 (permalink)
AJFC Registered User Join Date: Sep 2009 Member # 141634 Posts: 14	The other axleshaft is fine, is just one and the splines look fine.....but I have heard the flange of the axleshaft some time bends....I dont know how to inspect that... comments??

02-18-2012, 08:49 AM	#7 (permalink)
4x4prepper Registered User Join Date: Jan 2012 Member # 210335 Posts: 155	If all else fails, buy a bearing, remove the axle, and push it into the housing and try moving it around. Sometimes the housing itself is just worn/hallowed out. If it is you can stop the leak for a while, but, not fix the problem. Jack the leaking side way up, throughly clean where the bearing mounts, use red RTV along the bearing mounting surface, install the axle, let it sit overnight. I took a MIG welder and touched mine up on a very low setting.

02-18-2012, 03:48 PM	#8 (permalink)
RKDxpress Registered User Join Date: Dec 2007 Member # 104085 Posts: 39	Junk the 9 inch get a full floater. (Dana 60) I've had the axle shaft break at the bearing/flange lost the wheel crashed the truck.

02-18-2012, 07:46 PM	#9 (permalink)
AJFC Registered User Join Date: Sep 2009 Member # 141634 Posts: 14	Wtf???!!! really??!! I always believed the 9" was strong.....did you have a 31 spline axle? tnx for the commnet

02-19-2012, 04:51 AM	#10 (permalink)
RKDxpress Registered User Join Date: Dec 2007 Member # 104085 Posts: 39	No 28 spline and 38" tires but I had rebuilt the diff, hhad new bearings pressed on with new brakes and drums. Nine inch is a quick change axel on the track but still a light weight 1/2 ton axle. My 2 cents

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