Technical A Moron's guide to figuring out the rear gear ratio

I listed a Ford 8" rear axle in the cl***ifieds that had previously resided under a friends Model A, he removed it years ago and it is void of the tag stating the gear.

My friend has since p***ed away and I can't ask him any questions, the axles have been removed and I guess I need to put them back in to turn the yoke to get the ratio.

I have never done that, thus the *****'s guide ***le.

How do I proceed? HRP

 

With one drum not moving, turn the other twice while counting the revolutions of the pinion yoke.

 

Since it's laying on the floor, I'd remove the ten bolts and pull the chunk. Then you can also examine the condition of the gears.

 

Count the ring & pinion, then divide.

 

What's that cover above the pinion for?

 

Some times the fingers are quicker than the mind, other times it gives members the opportunity to give another member a ration of SH!T.

If you will notice the axles are not in the housing and the drums are laying on the floor, I can turn one drum all day long and nothing happens with the parts in their current location. HRP

 

That cover is generally used as a rubber bump stop plate in some models.
I'm with alchemy and slopok on opening it up and doing a thorough check, that way no mistakes or unhappy endings.

 

I will, my thought process was if someone needs a rear axle, it already has the mounts for the ladder bars or four bars and cup's for the springs, for 100 bucks it's cheap even if the gears are bad,but I do need to check it out. HRP

 

You could pop the axles in, so the splines are engaged. Then hold one side still while turning the pinion until the opposite axle makes two revolutions.
Or just remove the the center section bolts and be able to check the gears the easy way by counting teeth on ring and pinion and then divide ring count by pinion count. Also able to see gear and nearing condition, take a few pics to show buyer. This gives the best chance to sell.

 

This.

With the housing out of the car, brakes off, and axles out, you're 80% there.

 

I don't understand. What is behind it, it must cover something?

 

As long as we're correcting, it is pinion yoke, not egg yolk.

 

You shouldn't be calling stupid people *****s.
They don't understand what a ***** is. All you did was to confuse them and now they are walking into walls.

Sent from my SM-G973U using The H.A.M.B. mobile app

 

and spelling yoke wrong

 

Am I any smarter for reading this thread??

 

I'm convinced that I am getting dumber. I've spelled yoke correctly my entire life until now

 

Just pull chunk like said. Very eeeasy even a ***** can do it. You asked and named. All bs aside that is easily done with spot on specs and condition.

 

If he pulls the carrier, he looses all plausible deniability if there is a problem with it. (LOL)

 

I’m not familiar with 8” Fords but most ring gears are stamped with the number of ring gear teeth and pinion teeth, divide the larger number by the smaller number to determine the ratio. Obviously you have to pull the pig to view the numbers, but it’s the most foolproof method IMHO

 

I don't think so Don, but at least we are getting a spelling lesson. HRP

 

If you're lucky, the punkin has been out before and they didn't re-install them steenkin copper washers.

 

The piece that is held by the smaller circle of bolts is called the pinion carrier. It is common to 8” & 9” Ford axles. It comes out of the carrier housing and contains the pinion, pinion bearings (3) and the pinion seal as well as the yoke. It was a terrific idea and makes setting the pinion depth so much easier as the depth is adjusted by shims between the pinion carrier and the housing.

As mentioned in a prior post, the little ‘hoodie’ thing is a contact point for the pinion snubber that many cars had, especially Fords of that era. There is a rubber bump stop mounted to the frame or body just above it.

Ray

 

There is a very good chance you typed it correctly and your computer ‘corrected’ it for you. It happens frequently that the machine fills in the most likely (common) word after a few letters are entered. Drives me nuts! Also, this iPad often enters the numeral that is colocated with the alpha letter I typed. Also, inappropriately adds capitalization with the slightest provocation!

Ray

 

Schrödinger's ring and pinion?

 

Ah OK, my bad. After zooming in I get the picture. Looked like that hoodie thing was a separate cover. Thanks.

 

Danny,did you ever figure it out?

 

No John, I have just had too many irons in the fire lately, I been helping Brenda at the shop and Al hasn't been back to works since the start of all this covid ****.

Damn, I'm suppose to be retired! HRP

 

You could ***ume it is 3.00:1 and apologize later.

 

I've never had any faith in the turn and count method. That is only good for a ball park figure anyhow.
Agree 100% with X-cpe you could have pulled the chunk and counted the teeth in the time it took to go back in the house and ask how to do it the easy way.

 

Or, as many seem to do these days, advertise it as the most sought-after ratio, and then claim ignorance after the sale and refuse to entertain any notions of a refund. As I'm sure you all have noticed, the world just gets better and better each and every day.
No @HOTRODPRIMER , I don't think you would do this. Have read enough of your stuff to have judged you correctly.
Ring and pinion count is the way to go.