Issue 55 Page # 116

[Greenleaf]

Rear Axle Service.



The article states that the wheel is removed. Then the brake drum. Then the axle shaft. Then the hub.



The rear axles I have had apart for rebuild or brake repairs seem to have the wheel studs pressed through the drum and into the hub. The drum/hub must be pulled as a unit.



Am I reading this wrong or is it a mis-print? It was printed with the First and Second Generation Dana 70 in mind.

 

[JGrefenstette]

Greenleaf, dont want to divert attention from your question, but ive really been wanting to ask and keep forgetting. The sticker under the hood of my 93 W250 says my rear is a Spicer 70. i always thought they where dana's in the rear? Are spicer and dana built buy the same company? is my truck common, or uncommon?



thanks

 

[Greenleaf]

You likely have a very rare unit. Probably worth much more than the average rig.



Just kidding.



Yes. They are one and the same.



Did you hear about the guy who paid like $89,000. 00 for the first John Deere 5010 tractor? Your not that lucky. LOL:-laf

 

[BJMarshall]

The drums slip off the Dana 70 on my 01, but I had a 91 and a 94 that were like what you describe. I don't know when the change was made.

 

[flatlander]

GL, on my 91, I had to remove the wheel, then the axle, then the drum/hub (one unit) comes off once you remove the bearings.

Steve.

 

[Greenleaf]

Yeah. I thought so. That's what I remember.



Don't believe everything you read I guess... ... ..... Or. Reader beware.



I thought I had missed something when I pulled that last set of drums from a 93 D350

 

[boatpuller]

I've never touched one, but my understanding is that the second gens have drums that are on the outside of the hub so you can pull them with out pulling the hub, the first gens are all the way you described.

 

[dpuckett]

1stGen- inboard drums



2ndGen- outboard drums



My 99 D80 has outboard drums, so it's much easier to check brakes, etc. So, GL, you didnt misread, they just left out the 1stGen trucks.



Daniel

 

[Greenleaf]

Yes. But, it said "First Gen Trucks"... ... . and Second Gen too.

 

[Philip]

Scott you can't blame the TDR for what the writer didn't know. Why do proper research when he might get his hands dirty. :-laf:-laf



All right get back out into the garage. I know there is a bus there that needs your personel attention. :-laf:-laf

 

[WyattEarp]

my 92 you have to pull axle before the drum comes off as someone stated.
my 2000 the hub comes right off for access to the brakes.
of course on the 92 model your pretty much going to replace axle seal as a rule of thumb and from what i have read here, its the best to replace them when you do a brake job, or their may be a great chance of them leaking after you put it back together... and they are not that hard to do, i did mine on the left side after letting a garage check my brakes for an inspection, only thing is they guy did not tighten my axle nut so now i have the axle nut socket and i can do them myself.

 

[ZedMikey]

Just more fuel for you, GL... my '92 has the hub and drum attached, as does the D70 in my CJ (came from a '79 W-300).

 

[Steve Graham]

You guys are missing the most important design difference between these two. On my 92 W250 there is a lip on the backing place that surrounds the hub. This lip catches the dif oil when the inner seal on the hubs lets go and drains it so the brakes shoes stay dry. This lip disapeared on the 2nd gens, well on my wife 94 it's not there.

I had the learning experence with my 92. Seeing a wet spot on the inside of the wheel, tire, I made sure it wasn't brake fluid. Nope, it was diff fluid. So I ran it a while, didn't have any breaking problem, waited long enough for it to get really messy before I opened it up expecting to have to replace the shoes anyway. Shoes were dry, all of the leaking diff oil was channeled to the outside. For that alone I'll keep my PIA to get off drums.

 

[Andy Redmond]

Hi Fellas:



Good catch! You guys are really sharp!



Yes the first gen's have inboard drums, second gens outboards. . which means the dis-assy order is a bit different as several have outlined, correctly.



Steve also pointed out a design difference, but the design doesn't always work that great. . I've changed several sets of brake shoes and fought with wear sleeves and seals to prevent future leaks.



Although, I was aware of the differences, after re-reading what I wrote vs. what I really meant to write, it was clearly confusing. I'm sending the TDR editor a statement of correction for the backfire column, hopefully Issue 57.



Even our "doubting Thomas" Phillip is correct, I didn't get my hands dirty during "research," I cheated and wore sissy nitrile gloves.

 

[Greenleaf]

Thanks Andy for the reply. I will accept my 1 (one) year free subcription to the TDR for cathing this and lemme tell you... ... ... ... ... . I have worked with/next to Phillip and HE wears nitrile gloves. It's really sumthin' to see him smoke a cigar down to the filter and watch the glove catch afire... ... ... ...



ROFLMAO





Well, maybe not, but it's still funny to think.

 

[Philip]

[ HE wears nitrile gloves/QUOTE]



"BS"



I use leather or kelvar only for gloves.