I've never heard of a 4.09 gear, just assumed it was a miss informed statement like people that think there is a difference between 4.10s and 4.11s

 

.....No, it wasn't just a random statement. I was actually answering the guy's question. The tag read 4 09. If it were a Dana 60, it would have read 4 10. There was no need to look up the BOM number......no need for pictures.....no need for comparing anything.

 

Had to buy the whole truck to get it tho...

 

Why is HillBillyDeluxe81 catching heat???? Guys knows his High pinion Dana axles, and provided accurate information regarding it. (actually knows the low pinion axles inside and out too)
Identification can be done in a variety of ways, HillBillyDeluxe81 simply replied with a correct answer when limited information was given in the form of a question.
A chebby front axle will not have the same exact ratio as a high pinion ford because the chebby is not a high pinion axle.
The dana 44 which can be a high pinion wont have the exact ratio due to its diameter.
Its mathematically impossible to achieve such a ratio based upon the ring gear diameter, and pinion diameter. Some can use this to quickly identify one axle from another.
Its why we often see a slightly different ratio from front to rear, ie, 4.09, 4.10 and 4.11 ratios.
When fellas ask about axle ID, we hear about hub diameter, and axle tube diameter, and this too is not always accurate. Remember that the HD low pinion axle (not HD at all) used an external type hub that measures about the same as a high pinion Dana 60.

Learning to spot a king pin axle VS a ball joint axle can help to determine a dana 44 from a dana 60, except that dana 60's after 92 were ball joint axles, so this is not always 100% accurate. Then we get into the metric junk after 99, but we wont go there.

Also keep in mind that closed knuckle axles were a king pin or trunion bearing design, and this alone can be confusing. Dana 44's are often confused with the desirable Dana 60 because someone suggests that they ID the axle by looking at the steering arm. 4 bolts means Dana 60 and three bolts should be a Dana 44 right? Well this too is not always correct, because the closed knuckle dana 44 uses a 4 bolt steering arm.
Again not 100% accurate.
We could really go on and on, but experience is probably the only way to help one determine which axle is desirable, and which ones are not the best.
How many can tell the difference between a 78/9 D60F and a 86 to 92 at a glance or without a tape measure?
I know for fact that HillBillyDeluxe81 can.
How many know that the fasteners that hold the factory inspection cover for a Dana 60 will require a 9/16" wrench and the dana 44 only requires a 1/2" one?
HillBillyDeluxe81 does.
The guy simply shared a piece of valuable information based upon the limited facts that were presented.
Might be one thing if he passed along some bad info, but he did not. His reply was spot on.
Cut the dude a little slack, and credit him for sharing a little bit of knowledge and some info that many were not aware of.

 

I don't think I need to say anything that 75F350 hasn't said already (thanks buddy). However, I did take a few pics this afternoon......

 

Yes...I realize the axle is a pile of crap. Why else do you think it's sitting outside with no cover.

Point is...it's a CHEVY Dana 44. With 4.09 gears.......

 

well, actually that looks like a very old 44 or a Dodge 44

these are chevy 44s, notice the stabilizer brackets

 

Umm.....that's a GM 10 bolt you have there..... NOT a Dana 44. Those axles DO use a 4.10 gear. However, Dana 44's use a 4.09 gear. Ford, Chevy, Dodge.....it doesn't matter. Go to the Dana BOM page and check for yourself.

Well, there are the aftermarket 4.10 "thick" gears....but that's different......

 

Back on topic, the way I identify 78-79 D60s quickly is the hub tube measures exactly four inches across at the hub mount and 44 axles will have either much wider hubs or they are less than four inches wide on other versions. I won't get butthurt if someone corrects me tho. Haha

 

So he does not know that Dana 44's use a 4.09 gear......big deal.

But, to post a picture of a "Dana 44" in attempt to prove someone wrong, and post a picture of a GM 10 bolt instead.......now that's priceless.

(in his defense, there IS a Dana 44 in the background)

 

Ok knock this bickering off. And it's not a good idea to report a post just because you disagree with someone (and this makes twice in the past week) ESPECIALLY when YOU are doing the attacking. You know who you are, BUT this applies to everyone.

Per the guidelines you all agreed to when you signed up for this site

I have given no warnings or infractions THIS time but this is everyones warning. I hate wasting my time cleaning up threads like this.

 

Thank you for information that I did'nt have. OBCB

 

actually both of those are D44, the front one is leaned forward and gives it more of a "circle" look, I'm not sure why, but I can assure you it is not a 10 bolt. I had a 10 bolt in my 84.
same axle from the back side (I can't take more pics because I sold it)

old ten bolt, notice the four "ears'

there, I'm done with this thread, it is so off topic that it hasn't help the OP at all.

 

Ok, I know this thread is a few days old, but I am going to look at some axles tomorrow. The guy claims they are front and rears out of a 78 F250. Claims they are D60s with the front being a high pinion, with both axles having 3.50 gear ratio. can anybody give me some hints to ask the guy for on the phone before I drive 2 hours? The asking price is reasonable, and I have read through this thread several times, each time getting more and more confused. Any ideas or advice is welcomed.