1970's Mark II Corona - E or F Series Diff?

[Grant]

Maybe someone could clear this up for me. A while ago I bought a 1970's Mark II Corona diff as I was told it was an F-series. Searching the net recently though I came across some data that said they had E-series diffs. Can anyone confirm. Thanks.

[timbosaurus]

I was under the impression it was an F series... as everthing i have seen about them indicates they had an F.

But i'm actually looking for one now... so if someone knows whether certain models only have an E series, that might save me some disappointment in the future. So here goes listening to what ppls have to say

T.

[rob]

MX10 and MX22 has E
MX13 and MX23 has F

if its 1970 its most likely early model E sorry to say

[Norbie]

The answer to all your questions (and so much more!!) can be found in the Toyota Axle Database:
http://www.norbie.net/ToyotaAxle/

[timbosaurus]

Thanks Norbie.

Having never compared an E series to an F series... are the differences going to be obvious? Anything to check rather than simply trusting that an MXx3 WILL have an F series.

Cheers
Timbo.

[Norbie]

Not that I'm aware of. If you have one of each side by side you'll notice the F series is physically larger, but there's not enough of a difference to spot it otherwise.

Oh and if the diff is still in the original car you can check the axle code of course.

[joecoolmk2]

i'm not sure of all the early models, but my mx22 has an E diff. All mx13 and mx23 have F diffs though.

the difference between the E diff and an F diff is you can't fit an F centre in the E!


...seriously though, the diff housing diameter on an E diff is about 220mm, whereas the F diff is bigger.

[timbosaurus]

Thanks guys!

[Grant]

Yeah, thanks for that. Looks like I'll have to measure the crownwheel to be sure.

[joecoolmk2]

don't bother pulling the diff out if it's not already, just measure the carrier flange. if it's about 220mm it's an F, if it's less it's an E.

[Robbos_Toyotas]

MX10/12/22 uses an E series,

MX13/23 use F series

believe me, my mate owns each of the above....

[Robbos_Toyotas]

The answer to all your questions (and so much more!!) can be found in the Toyota Axle Database:
http://www.norbie.net/ToyotaAxle/

well done dude, i like what you did with that database

[joecoolmk2]

i'm gettin my hands on a f diff, so i'll closely inspect both to see if there's a giveaway in case you don't carry a tape measure with you everywhere.

[Robbos_Toyotas]

i'm gettin my hands on a f diff, so i'll closely inspect both to see if there's a giveaway in case you don't carry a tape measure with you everywhere.

I have a hiace diff thats much stronger for sale - PM me if you like

[joecoolmk2]

I have a hiace diff thats much stronger for sale - PM me if you like

i'm in tas, so no thanks. i'm getting one from a mk2, it'll bolt straight in. instant upgrade.

[Robbos_Toyotas]

i'm in tas, so no thanks. i'm getting one from a mk2, it'll bolt straight in. instant upgrade.

yeah freight would be a killer, didnt read u were down there

[TheStitt]

I pulled an E diff out of my Crown.

I thought it was F how ever when I pulled it out and did the Disc brake swap, then left it. Next time I played with it after palying with nemerous MA61 and Crown F series diffs. I picked up my old diff and was like that looks small.

On dis assembly again everything just seemed small. I took it try and fit the certre in a hiace f series housing and it didn't fit.

So yeah lessoned learned Early MS53's had e series.

[Grant]

Checked it on the weekend. It's an F series!

[joecoolmk2]

i just thought of one thing that i noticed when i got the mx22... the drums(the outside part) are held one by a couple of machine screws, whereas the F diff ones are held on by the wheel. other than that, i'll check when i get my new diff....

several days go by....then.....

i have my F diff next my car(can't change 'em yet), and the subtle visual differences are:

- the top arm brackets have two holes drilled in them on the F, whereas the E doesn't.

-as i already mentioned, the drums on an F aren't bolted to the axle, whereas on the E, there are two screws on each side. very subtle differences.







now hopefully no-one will be caught out buying an E, when they want an F!

[joecoolmk2]

i'll get some pics of the drums themselves, cuz i'm sure they look a bit different to each other too.