: Shaving a 9" for 1& 1/8" better clearance


Aggro
08-20-2002, 05:31 AM
A ford nine doesn't have bad clearance if you run it pinion parralel to ground. That gives you a rather low pinion entrance to the diff though. The more you rotate the pinion up (as most wheelers do) the more ground clearance you lose. This is how to fix that problem. I cut 1.25" off the bottom and plated the void with 1/4" inset into the cut on the front of the axle and on top of the cut at the rear for an overall gain of roughly 1.125" clearance under the diff- the same as going from 38's to 40's.
Marking for the cut:

Aggro
08-20-2002, 05:32 AM
Making the cut:

Aggro
08-20-2002, 05:33 AM
Clearance to gears when everything was said and done = .25"

Aggro
08-20-2002, 05:33 AM
The cut to fit plate to be added:

Aggro
08-20-2002, 05:34 AM
Test fit:

Aggro
08-20-2002, 05:35 AM
And all welded up:

rkcrawl
08-20-2002, 05:41 AM
Very cool. :D I will have to remember this one, and think Currie charges $150 for that. :rolleyes:

randii
08-20-2002, 10:00 AM
http://www.pirate4x4.com/forum/attachment.php?s=&postid=776339
Nice work -- got a pic of inside the housing, before you installed the third member?

I'm curious about the three-holed chunk of metal, here. Was this just used for fixturing purposes, or does it tie into an internal brace?

Randii

Aggro
08-20-2002, 01:22 PM
Originally posted by randii

Nice work -- got a pic of inside the housing, before you installed the third member?

I'm curious about the three-holed chunk of metal, here. Was this just used for fixturing purposes, or does it tie into an internal brace?

Randii [/B]

I can get a pic of the inside if you'd like. I won't re-install the diff for a couple more days. The verticle 3 holed piece is a gussett to resist denting from the bottom of the diff and it ties into the front and rear of the housing. It is parallel to and right next to the ring gear.

randii
08-20-2002, 01:40 PM
The verticle 3 holed piece is a gussett to resist denting from the bottom of the diff and it ties into the front and rear of the housing. It is parallel to and right next to the ring gear.
In that case, nice 'speed holes,' ya ricer! :flipoff2:

Seriously, nice work. Heckuvalot easier working with stamped steel than big chunks oh Dana-cast, ain't it? :D

Randii

welndmn
08-20-2002, 02:07 PM
cool, I have been meaning to do this for over a year, i just don;t want to pull the diff out.
PS still looking for a junk 3rd member so i can do this

Oxjockey
08-20-2002, 02:29 PM
Nice! :beer:

SanDiegoCJ
08-20-2002, 02:47 PM
Originally posted by rkcrawl
Very cool. :D I will have to remember this one, and think Currie charges $150 for that. :rolleyes:


A guy I know has Currie 9" axles F/R that are shaved by Currie.
He was told by Currie not to run them long distances on the street
because there's less gearlube in the pumpkin to disapiate heat
and the bearings could over heat.

Shaw
08-20-2002, 04:40 PM
Good job.

But for 1/4" gain.... I don't think I would waste my time.

Weezer
08-20-2002, 04:46 PM
Originally posted by Shaw
Good job.

But for 1/4" gain.... I don't think I would waste my time.

Hey newbie pull your head out and read the post before you reply, he said he gained 1.125" and 1 more thing


:flipoff2: welcome newbie:flipoff2:

Shaw
08-20-2002, 06:41 PM
Whoa! I guess I fucked up!

Wilson
08-20-2002, 06:50 PM
Damn, I didn't even think of that when my housing was sitting in my shop for 3 months while I was finishing the rest of the truck.

Jason R
08-20-2002, 09:46 PM
Nice job, but I don't think its worth the effort. Tell us how everything works out. :D

TJpwr
08-21-2002, 01:12 AM
Originally posted by Daniel
THe NOOB isnt that far off the actual gain is going to be close to that..
NOtice the gear housing is not going to drop
Notice that his cut is going up hill to match the ring gear
Notice the actual distance between the ring and the housing @ 1/4 inch...
Now he did remove the lip and make the bottom smoother overall and easier to slide over rocks however REAL Gain from the ground up is not 1 1/4 inch...



Well, you might be right...It all depends on what the pinion angle is set at. If it was 0 then there would be no gain. But as the pinion is tilted upword the shaved part comes into play.

Phil

Aggro
08-21-2002, 05:27 AM
Originally posted by Daniel
THe NOOB isnt that far off the actual gain is going to be close to that..
NOtice the gear housing is not going to drop
Notice that his cut is going up hill to match the ring gear
Notice the actual distance between the ring and the housing @ 1/4 inch...
Now he did remove the lip and make the bottom smoother overall and easier to slide over rocks however REAL Gain from the ground up is not 1 1/4 inch...



Dude! Lay down the crack pipe NOW. If you don't understand you shouldn't let this type of thing come out of your brain. My pinion angle is set to 25*, and and I had better than 1.25" of housing under the ring gear at that pinion angle. I removed all this material and added 1/4" plate to fill the void, for an actual gain of roughly 1.125". Like I said in the original post, The more you rotate the pinion up (as most wheelers do) the more ground clearance you lose. If the housing was parallel to ground, I would have gained NOTHING, but since the housing is rotated I truely gained ground clearance back that was lost due to rotating the housing. Nearly any axle housing you rotate up you WILL lose ground clearance, with one exception being the ultra gimmick tera50 "with crd" (!)
"NOOB" with 2000+ posts:rolleyes: :confused:

Shaw
08-21-2002, 05:59 AM
OOOOH! I think dem's fightin' werds. :flipoff2:

John Deere Ranger
08-21-2002, 07:26 AM
Originally posted by SanDiegoCJ



A guy I know has Currie 9" axles F/R that are shaved by Currie.
He was told by Currie not to run them long distances on the street
because there's less gearlube in the pumpkin to disapiate heat
and the bearings could over heat.

the more you rotate the pinion op the more fluid you have to add inorder to have fluid come out of the fill spout.... so you gain any lost fluid back IMO

SWEET WORK

welndmn
08-21-2002, 09:18 AM
Originally posted by John Deere Ranger


the more you rotate the pinion op the more fluid you have to add inorder to have fluid come out of the fill spout.... so you gain any lost fluid back IMO

SWEET WORK

Kind of, but where the oil goes is in the Tubes and it tends to blow out the axle seals

Shaw
08-21-2002, 11:32 AM
^^^ never heard that one ^^^ :confused:

Goose
11-15-2002, 02:16 PM
Hey Aggro,

Do you have any update on this since you finished?

Any problems that you ran into since you did the High Clearance.
(The Rockslut) said it frickin look tight underneath your rig and work out good on the trail.

Just curious

Do you have any pics installed in your rig?


Thanks!
:D

wanderingwillys
11-15-2002, 03:14 PM
Originally posted by Aggro


Dude! Lay down the crack pipe NOW. If you don't understand you shouldn't let this type of thing come out of your brain. My pinion angle is set to 25*, and and I had better than 1.25" of housing under the ring gear at that pinion angle. I removed all this material and added 1/4" plate to fill the void, for an actual gain of roughly 1.125". Like I said in the original post, If the housing was parallel to ground, I would have gained NOTHING, but since the housing is rotated I truely gained ground clearance back that was lost due to rotating the housing. Nearly any axle housing you rotate up you WILL lose ground clearance, with one exception being the ultra gimmick tera50 "with crd" (!)
"NOOB" with 2000+ posts:rolleyes: :confused:

Sweet job - Deja Vu! - I just did mine about 6 months ago - I ended up with more ground clearence than the D35 that came out :eek: The 9" is really fun to work with...

Matt

http://home.off-road.com/~wanderingwillys/xjpics/shaved_9inch3.jpg

UZI 9mm
11-15-2002, 03:43 PM
Originally posted by wanderingwillys


Sweet job - Deja Vu! - I just did mine about 6 months ago - I ended up with more ground clearence than the D35 that came out :eek: The 9" is really fun to work with...

Matt

http://home.off-road.com/~wanderingwillys/xjpics/shaved_9inch3.jpg


DAMN! that looks :cool: too! I love the spring perch bolts as well.:beer:

BJ On Roids
11-15-2002, 04:06 PM
Originally posted by wanderingwillys


Sweet job - Deja Vu! - I just did mine about 6 months ago - I ended up with more ground clearence than the D35 that came out :eek: The 9" is really fun to work with...

Matt


thats pretty sweet lookin!!

Beast40
11-15-2002, 05:52 PM
Originally posted by Daniel
AAAA housing rotation.... I have to keep mine perfectly level for 6X6 this is of no benefit to me.... I didnt even think of housing rotoation...;)




Good try at a cover up :rolleyes:


Anyways good job with the 9" got any pics of it mounted under the rig?

bignissan
11-15-2002, 06:19 PM
very nice work...i think i may tackle that when i pull my axle to weld in a drain plug...
greg

TNToy
11-15-2002, 06:52 PM
I would put some thought into it before i installed a drain plug. Toy housings are similar to 9" ones - and they come with factory drain plugs.

I can't wait to cut the bottom of the housings to get rid of that stupid plug. It ALWAYS leaks after it gets tagged by a rock or two on the trail, and it likes to snag on things. This is a very low-pro drain plug, with a guard around it.

I would do what the toyota guys do. Replace the bottom two studs with bolts to use them as drain plugs. IIRC the 9" studs are pressed into the housing like wheel studs, so you'd have to pull the 3rd, pop out the bottom two studs, and simply tap the holes for whatever size bolt you choose.

randii
01-10-2006, 06:26 AM
I can get a pic of the inside if you'd like. I won't re-install the diff for a couple more days. The verticle 3 holed piece is a gussett to resist denting from the bottom of the diff and it ties into the front and rear of the housing. It is parallel to and right next to the ring gear.
Yeah, go ahead and get back to me in a couple more days! :flipoff2:

Randii

Moab Austin
01-10-2006, 09:42 AM
which Daniel is this guy?

also I thought you werent suppose to run any currie axle very far at any speed?

:smile:

Davethorik
01-10-2006, 10:12 AM
Well, since he mentioned a 6x6 and his dumbass post is deleted for no apparent reason.... :flipoff2: