Ranger 7.5" 4.56's install

[rickcdewitt]

first off-160$ for a rebuilt low geared axle? why DIDEN'T you expect something to be a little hokey(grits in housing,maybe needs a little more setup adjustment).

for that price i'de go through it WITH PICS anyway.

backlash,contact pattern?

you aren't helping yourself by just WHINING on the internet.somehow you got everyone siding against you?

i see your points but its pretty apparent the things you are doing that AREN'T helping your case.

i was a little surprised this thread isen't dead yet

 

[89_Black_Beast]

 

[Jspafford]

Ouch!

 

[rickcdewitt]

some drain plug grits are normal when setting up an axle,especially if its had three sets of blown up spiders.at the very least i'de pull the cover,axles and carrier to flush the housing.

check the carrier bearing preload and backlash while you are in there.and get some pics of the contact pattern.

EDIT: sorry beast my slow cpu only loads a few pics at a time before you have to hit refresh.after 4 pics of the fill plug and grits i posted without looking at the rest.

i agree with makg on the gear face damage,this doesn't look like a sound setup.
what is the backlash now?and are the face of the teeth galled or smooth?

 

[MAKG]

Good; that's really helpful.

What is in that gear oil? It's GREEN? There are rust stains on the ring gear; is it water contaminated? Ground up steel makes it battleship gray.

The wear pattern on the ring gear does not look right; it looks like it has been riding on the gear teeth and that there are a few chips. Not good. This looks like either incorrect setup (pinion too deep and/or backlash too wide) OR a questionably-reused gearset (old damage). Mike, did you reuse the gearset for this "rebuild?" Are you sure the carrier shims haven't been reversed upon reinstall? You must have had the carrier out to inspect and clean out the axle tubes.

Wear/contact patterns are much easier to spot with gear marking compound, but something really doesn't look right there. However, it's conceivable that the pattern is just surface tension in the water that was on this gear. I kinda doubt it, though.

The carrier is gouged; this is consistent with a LOOSE pinion, but it may be old damage (it's inconsequential if so).

But that gear oil really bothers me. What was it? Where did you take this truck?

 

[89_Black_Beast]

its a lowered truck, it only sees the road. if you watched the vids you would know this. the gear oil is only a month or so old. Is cheapo gear oil at advance auto cause I knew I was gonna change it. The gear oil is clear on you fingers but looks green from the container and all the metallic shavings in it.

Those aren't rust stains either its orange chalk made into a paste, trying to show contact pattern but it wasn't workin well, I found other paint then...

I already pulled the axles and carrier to clean/flush all the metal out of the rear. There was a shit load of metal sitting in the groves behind the carrier shims in the axle tubes.

The carrier is damaged and so is the abs ring and diff cover. Someone grenaded more than spiders in this and it was never cleaned well before someone slapped new gears in it.

This is why I want a little compensation for this thing...
-I welded and ground out axle wrap marks
-power washed and painted it
-pulled the carrier and axles to clean and flush out LOTS OF METAL!!
-ran oil threw it 3 times to clean it out
-Spent a shit load of time I shouldn't have on this thing
-drove 2hrs to pick up a "freshly rebuilt rear"

 

[4x4junkie]

Kindof hard to see the coast side contact pattern in your spray paint (?) marking compound.

From what I can tell, the pinion is too shallow, and backlash maybe too wide (definitely not set up right). I'll also assume the grind marks on the carrier were pre-existing from the pinion coming loose in the past.
If the gear teeth are still smooth, they might be reusable. If there's any scoring or galling though, then they're toast.

Green gear oil is not that unusual though. IIRC, the factory Motorcraft oil I drained from my Ranger was green (and so was the engine oil too).

 

[89_Black_Beast]

Nothing to say for your self mike... Way to be an asshole...

 

[MAKG]

Another "interesting" feature -- Photo #10 shows an inconsistent contact pattern. Some of the teeth show a nice, centered wear spot, with feathered edges like they should be. Some other teeth show a wear spot right that intersects the tooth edge, and drifts outboard.

I think this means the ring gear is not square. I.e., the carrier is tweaked.

 

[mhughes165]

when something compells me to say something i will, what u are seeing could simply be caused by you removal of the carrier and incorrect reinstallation.

ALSO by any means if there was something wrong with the rear, and i had these photos before u drove on the rear for 2 months and it looked like this then i might be inclined to believe it, but as it stands, i beleive the carrier was reinstalled incorrectly, and u caused your own problems with the rear

 

[89_Black_Beast]

haha **** you... I didn't do anything wrong here but fix your **** up... I marked the shims when I took them out how can they go back in wrong when it was already "professionally installed" by YOU!!!! Realize you fucked this thing up and maybe say sorry... don't be so fucking ignorant.

 

[MAKG]

when something compells me to say something i will, what u are seeing could simply be caused by you removal of the carrier and incorrect reinstallation.

ALSO by any means if there was something wrong with the rear, and i had these photos before u drove on the rear for 2 months and it looked like this then i might be inclined to believe it, but as it stands, i beleive the carrier was reinstalled incorrectly, and u caused your own problems with the rear

Mike, I'm having a real hard time explaining the inconsistent contact pattern with incorrect carrier installation. I can't see any setup variables causing the carrier to deform in that manner, nor consequences of poor setup. Now, I could see ingestion of a blown part such as a spider gear chunk doing that.

Can you help me out here? Photo #10 appears to show a contact patch migrating on the gear surface, as a function of rotation angle. It's not a floppy pinion or it would be nonrepeatable (and even if it was, that would be an initial setup error unless he had the pinion out -- not necessary for what he was doing).

 

[Sasquatch_Ryda]

Maybe the ring gear wasn't seated properly onto the carrier?

 

[mhughes165]

Mike, I'm having a real hard time explaining the inconsistent contact pattern with incorrect carrier installation. I can't see any setup variables causing the carrier to deform in that manner, nor consequences of poor setup. Now, I could see ingestion of a blown part such as a spider gear chunk doing that.

Can you help me out here? Photo #10 appears to show a contact patch migrating on the gear surface, as a function of rotation angle. It's not a floppy pinion or it would be nonrepeatable (and even if it was, that would be an initial setup error unless he had the pinion out -- not necessary for what he was doing).

honestly, i cant explain it myself either, the previous owner of the rear ran it it in his truck for about a week back and forth 3 miles to work, he had no complaints as far as sound's went, when he decided he wanted to slamn the truck i gave him 200 for the rear, i planned on using it in the ranger myself before i got the 8.8 that kevins ranger now owns.

now, had u actually gotten pictures of everything in the rear like i had asked u initially and it indicated something done incorrectly, i would apologized and had u bring it back for a full refund, but u have driven on it for just over 2 months now so i will not take responsibility for the rear. if u had told me there was a issue, u had corrected it knowing as u had all parts needed to correct it because u had you old 7.5, i would have apologized but u woulda gotten your moneys worth still. however this did not happen.

i am sorry for selling you this rear, had i realized it woulda caused such a headache i woulda kept it from the get go......

 

[89_Black_Beast]

whatever... you never asked for pictures, MAKG and others wanted to see pics not you. You could care less. When I told you this rear was howling you didn't believe me from the begining...

BLAH BLAH BLAH what does it even matter what I say... I'm stuck with this hunk of crap and I'm tired of this.

Mike I wish I wouldn't have met you or you would have been a little reasonable about taken care of your mistake, hopefully we won't meet again, have a good life...

Someone KILL THIS THREAD!!!!!