90 Suburban 2WD rear Differential

[eagle mark]

Looks like I'll rebuild this, have to check gears, if they are questionable I'll pull the diff and rebuilt the entire thing. If gears are OK, probably just do new axles, bearings, seals, brakes.

I like the 3:73 gears and don't want to change either way.

Was just wondering if there was a bolt in better differittial to start a rebuild on and answer is no, without major mods...

Now, any recomendations on GOOD axles and bearings? I like the C clip elimenater for the fact that I can change a bearing, without wear to axle from bearing...

 

[sweetk30]

just a quick question .

did you even look at the axle bearing surface ?

are you sure you even need axles yet ?

and gears yet ?

not saying anything bad but the stuff your saying is worst case .

 

[diesel4me]

We're just saying if it aint broke,dont fix it I guess...but its no sin to want it to be safer either.....I have no experience with C clip eliminators,but I am pretty sure you can get sealed axle bearings that dont have the rollers riding directly on the axle shaft like the originals,they are called "repair" bearings,and are designed to be used when an axle has has surface wear from the old bearings,so you dont have to scrap them and get new axles....................................................................................................I see no reason why they cant be used on a good un-worn axle,and they might add some strength because the axle isn't being used as the raceway for the bearings any more...when your life and the truck,trailer and cargo depend on that axle shaft not snapping,its best to not have one that has any wear on it,right??...........................................................................I've seen many 1/2 ton trucks overloaded to the hilt when I worked at the junkyard,people would load 2-3 tons of scrap on them often ,and I dont recall ever hearing of an axle breaking,but that dont mean one wont either!..seen frames break before an axle would though...

 

[black dawg]

How much does this 32 footer weigh? Sounds like alot of trailer for a 10 bolt.

You guys seem to have really good luck with 10 bolts, but it seems like every one I tear into has axles that are pretty worn.

 

[dyeager535]

For the cost of fully rebuilding a 10 bolt, I'd call Moser and whoever else makes axles, and see what they could sell you a pair of 14SF shafts with 5 lugs for.

I'd run a used 14SF (and I did), as long as I knew it hadn't been monkeyed with. They aren't full floaters in terms of beef, but they don't seem to have any of the problems that the 10 bolts do. In the long run, if all you have to do is get a 14SF and new axleshafts, its probably still cheaper than completely rebuilding a 10 bolt.

 

[OffRoad]

9 inch, 4.10s, Dee-troit, done.

 

[Stomis]

9 inch, 4.10s, Dee-troit, done.

Ding

 

[eagle mark]

For the cost of fully rebuilding a 10 bolt, I'd call Moser and whoever else makes axles, and see what they could sell you a pair of 14SF shafts with 5 lugs for.

I'd run a used 14SF (and I did), as long as I knew it hadn't been monkeyed with. They aren't full floaters in terms of beef, but they don't seem to have any of the problems that the 10 bolts do. In the long run, if all you have to do is get a 14SF and new axleshafts, its probably still cheaper than completely rebuilding a 10 bolt.

Yeah but what would I find a bolt in 14 bolt semi floater in? If it were bolt in a six lug axles I'd go that route, just swap axles.

9 inch, 4.10s, Dee-troit, done.

In a 2wd street truck with 275 15 tires?

I'm just not getting involved in setting up a jig to reweld all suspension etc.. on. I'd rebuild the 10 bolt first.

Pinion has lots of play and rear wheel bearings have play...

 

[dyeager535]

Yeah but what would I find a bolt in 14 bolt semi floater in? If it were bolt in a six lug axles I'd go that route, just swap axles.

Someone here can correct me if I'm wrong, but the light 3/4 tons from 1982-1991(? assuming the R/V light 3/4's continued to use the 9.5" until 1991).

AFAIK, the 3/4 ton stuff made for our body style is a direct bolt in for 1/2 ton stuff.

Won't be 6 lug (eight) but who cares if you are swapping axleshafts anyways.

 

[Stomis]

In a 2wd street truck with 275 15 tires?

I'm just not getting involved in setting up a jig to reweld all suspension etc.. on. I'd rebuild the 10 bolt first.

Whatchu talkin bout Willis?

You dont have to jig anything to put perches and shock tabs on an axle...