Dana 27 Gears

No plans on scrapping it, I'll check out G-503. Hopefully someone there will be able to put it to use. I had to heli-coil a few of the bolts holding the axles to the hubs, but otherwise, it was still in good working condition when I swapped it out for the 44.

Nickmil,
Thanks for your insight, I've always called and heard the differential, locker, posi, spool etc. referred to as a "carrier" for the ring gear.


Even Randy's ring and pinion refers to it as such:

"Lock-Right locker for Dana 25 and 27 differential. This is a mechanically-operated unit which locks when power is applied, giving full power to both tires, and unlocks when you let off the gas. The Lock-Right unit installs into a standard open carrier, offering a lower cost alternative to full-carrier lockers. These units are not recommended for applications with high horsepower or large tires."

 

Yup commonly called by the wrong term even by people who should and do know better. The carrier is the part the drive pinion and case bolt into. For example, the removable "third member" as it's sometimes called of a Ford 9" is a carrier assmebly. In the case of the 23-2 the axle tubes press into the carrier and is called an integral carrier as it is not removable. If you order a Ford 9" carrier you get the part the gears go in. You order a case and you get the part the ring gear bolts to. Spicer boxes have the description "case" with the part # right on the box.
Kind of funny they refer to the carrier wrong but on the same site you look up the part the ring gear bolts to and they call it a case correctly. Weird. I think they may do that because so many people call a case a carrier incorrectly. The media (magazines, Internet, etc.) frequently perpetuate this as well.

I think I have an extra older textbook you could have if you want it. I teach college automotive.

 

that drives me crazy.
at one point working on the slug there was a certain part that was refererred to by no less than five different names.
and none of them was in my FSM.

 

Yup. Not enough standardization in automotive. Different manufacturers call things by different names too. Try teaching this stuff with all the variations..... Now back to our regularly scheduled thread

 

Nickmil,
So what you're saying is, that the "pumpkin" is actually the carrier, or is it a center-section? Now I know what unclebill is talking about! Learn something new everyday!


Here's one that makes it even more confusing, they refer to it as both a carrier and a case:

"Replace your rear differential case with one of these Motive Gear differential carrier cases. They feature rugged steel construction for durability and will accept all of your factory internal parts without any modifications. Available for Ford, GM, Mopar, or Dana-style differentials, these Motive Gear differential carrier cases will help you keep your wheels turning."

came from here:http://www.summitracing.com/parts/MGR-26010481/

 

I think their wording is technically correct.

 

Yes, the "pumpkin" is the carrier. Center section, pumpkin, hogshead, third member, etc all slang for the carrier.

 

I've always known the part that the ring gear bolts to as a carrier, in the case of a Drop-In like a Ford 9" The bit that the carrier fits into is a "Pumpkin" or "Differential" The shafts that run between the Diff and the Hub have always been "Axle Shafts" to me, and the entire assembly hub to hub is an Axle...... I'm sure there's people that will disagree with me....

 

The differential is actually the gears inside the differential case. The pinion gears, commonly called spider gears and the side gears. These allow different speeds or differentiation of the axle shafts when turning for handling, longer tire wear,'reduced harshness, etc.