Intro to forum and a hub story

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Vetal4

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Ian
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1988
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V30 Crew Cab
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350
I joined the forum recently so I guess this is my introductory post, but I also figured I would share some monumental stupidity I encountered......

Backstory, bought a 1988 V30 3+3 about 3 weeks ago, am selling my 1985 K20...needed the whole family to be able to come along, right? Find this truck in Missouri, pretty damn nice, former grass truck from SD, taken care of for the most part. 350 TBI truck. I fly out there, buy it, drive it back, no problems (kind of seems to bog at highway speeds, but have some of those issues addressed already, TBI needs to be gone through). One issue was brakes. Truck has hydroboost, stops pretty good for the most part but there is a slight pull on hard braking, and very seldom there is a pretty bad vibration in the front end on braking. I mean VERY seldom, as in I haven't figured out how to reproduce, figure its something in the front end, caliper seizing on a pin occasionally, something like that, make a mental note to address the issue.

A couple of days ago I noticed a leak form the driver's side rear drum, okay probably a wheel cylinder, let's get one and pop it on. I pull the rear drum off drum looks good, no deep grooves, plenty of meat on the shoes but every thing is cruddy. Notice hub is full of oil, okay was going to replace wheel seal anyway. Bearings look new, roll nice... didn't notice any play in the wheel when I took it off so those just need re-packed probably....WAIT WHERE IS THE OLD WHEEL SEAL? Not in the hub...did it somehow come out on the axle...nope, but on the inside of the flange was a smear of black silicon. Do people really do this, WTH? Come to think of it I didn't see the paper gasket on the flange either, just the silicon. Pretty sure it wasn't the guy I bought it off of, but the owner before him.

Well this certainly escalated into a full brake job. As I said the bearings look good, they certainly haven't been starved of...oil. I'm thinking they can be re-packed and re-used, any thoughts on this? Anybody run into this before....I'm going to be charitable and assume that maybe the person that did this was used to medium/heavy duty trucks and thought they were supposed to run in oil? Forgot the seal? I don't know. Anyway thought this story would be interesting to you....
 

Big Chip

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Welcome.
 

74Blaze

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What kind of Jackwaggon would try to seal a moving part to a stationary one with silicon? This is why I do as much of my own mechanical work myself.

Welcome to the site.
 

Snoots

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Somebody in a hurry? Hard to believe that anyone with any sense at all would do that.

Welcome to GMSB. We are pic hoes here! Need pix!
 

Strick

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Welcome to the site.

Strickland
 

85K304SPD

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Welcome, fellow NM person. I guess that it "worked", you made it home!! haha. Show us some pics of that beast.
 

animal

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:welcome:
 

WFO

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Welcome from the Texas Panhandle.
 

Craig 85

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FYI you don't pack the bearings on a 14 bolt FF rear end. The are an oil bath seat up. There is only one seal on the rear of the hub.

Years ago I bought an '80 C20 3+3 (basically a C30 SRW) that had a 14 bolt FF. The PO had greased the rear bearings and sent gear oil everywhere on the rear brakes due to a failed rear axle seal from the grease. What a mess!

You can run just silicone on the exterior axle flange. I've done it many times if I didn't have a gasket. My K30 is going on 5 years since I did my rear brakes with no issues. FYI on my '01 2500 Suburban, they actually use a metal flange as a gasket on the axle seal.

Here a link to pretty much everything you need to know about a 14 Bolt FF axle:
http://www.billavista.com/tech/Articles/14-Bolt_Bible/index.html
 

Vetal4

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Ian
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1988
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V30 Crew Cab
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350
FYI you don't pack the bearings on a 14 bolt FF rear end. The are an oil bath seat up. There is only one seal on the rear of the hub.

Years ago I bought an '80 C20 3+3 (basically a C30 SRW) that had a 14 bolt FF. The PO had greased the rear bearings and sent gear oil everywhere on the rear brakes due to a failed rear axle seal from the grease. What a mess!

You can run just silicone on the exterior axle flange. I've done it many times if I didn't have a gasket. My K30 is going on 5 years since I did my rear brakes with no issues. FYI on my '01 2500 Suburban, they actually use a metal flange as a gasket on the axle seal.

Here a link to pretty much everything you need to know about a 14 Bolt FF axle:
http://www.billavista.com/tech/Articles/14-Bolt_Bible/index.html
Ah so I’M the dummy here. That’s actually a relief. I was a afraid of what else I would find. I could have sworn that It ran in grease, I even read the 14 bolt bible….but I’ve been doing this during the wee hours with a baby keeping me up, so I probably conflated it with something else, thanks for setting me straight.

Will get you guys some pics when I get back to my computer, thanks for the welcome.
 

Vetal4

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New Mexico
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Ian
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1988
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V30 Crew Cab
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350
As requested….new truck about an hour into the trip from MO. RPOs . Old truck out for a stroll.
 

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Grit dog

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Todd
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As requested….new truck about an hour into the trip from MO. RPOs . Old truck out for a stroll.
New rig looks tough!
And welcome from an ex NM resident. The wheelin pic looks like you’re in the Sandias?
 

Vetal4

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Location
New Mexico
First Name
Ian
Truck Year
1988
Truck Model
V30 Crew Cab
Engine Size
350
New rig looks tough!
And welcome from an ex NM resident. The wheelin pic looks like you’re in the Sandias?
Thanks! I'm really liking the ex-firetruck vibe the truck has, kind of reminds me of the oilfield trucks I used to see running around as a kid in SE Ohio. Yeah, I'm in the eastern Sandia foothills, that pick is from a hill right in my neighborhood that was never developed...it was lotted but I assume its just too rough. The truck is actually on a public road in that pic...
 

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