Stamp on my rear end,, not OT ;)

[jd52cranbrook]

This is also stamped on the top of my rear end,, not a 410 not a 390? What ratio is this one? 397??

Thanks,

[Jerry Roberts]

My guess is a 3.9

[claybill]

it looks like a 3.9f not 7 ???

i have 2 rears marked 3.9F also.

location seems in a different place tho..way up on top between the bolts. yours looks like down on the driveshaft area.??????? maybe i am looking wrong

bill

[Young Ed]

No idea what the F means but I would say you have a 3.9. I've seen others where they didn't bother with the second decimal.

[jd52cranbrook]

It has the same stamp on top also. Was just easier to take a picture of this location.

I have the build sheet on the car, I thought it would specify but doesn't. I know the 390 was standard with 410 a option for hilly country. The car was shipped to Mesa AZ.

BTW the car was born on June 12, 1952

Guess I could jack it up and do the wheel spin test.

[jd52cranbrook]

Maybe the F is for fast,,,,,,,,,,,,,,,,

[claybill]

i thnk the 'F' is for forget-it. its a 3.9

i was looking for one..and now i have 2..

bill

[Norm's Coupe]

Guys,

I think the reason the stamp is in the wrong place is because it was probably made on a Friday, due to the F on the end. Since we all know we shouldn't buy cars built on a Monday or Friday, I think he should find a different rearend. :D

[jd52cranbrook]

Guys' date='

I think the reason the stamp is in the wrong place is because it was probably made on a Friday, due to the F on the end. Since we all know we shouldn't buy cars built on a Monday or Friday, I think he should find a different rearend. :D[/quote']

Wait, that was way to much info,,,,

What I meant was, that rear end made it to Detroit and back to CA twice,,,,,,,,,,,,,,,,,,,,,,,,,,,,lol

[Norm's Coupe]

These rear ends, both mine and the car's got me to Detroit and back from CA twice. So I think their pretty reliable,,,,,,,

When I made that remark about being built on a Friday, I was thinking about an old time joke about assembly line workers. The old joke saying said never buy a car that was built on a Monday or Friday. That's because on Monday the assembly line worker was hung over from the weekend. Friday was usually payday and they were just in a hurry to get off work and head to the bar. :D

[Normspeed]

Norm, as I recall, there was truth to that joke. Absenteeism at the U.S. plants was way up on Mondays and Fridays. That caused a need to shift the remaining workers to assembly line positions that they were less familiar with, to keep production moving. So parts got installed incorrectly or not at all. The dark side of Henry Ford's visionary dream.

[jd52cranbrook]

I think thats true today also, unfortunately.