I was told by a long time Ford collector that the rearend of my "54 Merc could be a 4.11 posi.



My Merc has a 3 speed with overdrive which he said came with the 4.11. How do I verify this info for my own knowledge?





Jeff Leydig
Stallions Auto Interiors
Stearns, Ky. USA

Jack the car up so the rear wheels are off the ground. Mark a tire with chalk and turn exactly one revolution and count the number of turns the driveshaft makes. One tire revolution and four driveshaft turns would be 4.00 to 1. It's easier with two people.

O.K. we will do this tonight.



I am a rookie at these old Mercs. I grew up owning 60's and 70's cars and the only 50's car I ever had before this one was a 1952 Chevy. So any info I get is a plus.

Jeff Leydig
Stallions Auto Interiors
Stearns, Ky. USA

Welcome to the site Jeff, good looking Merc. I see that you are in the interior business, how about engine and interior pics.

Glen Henderson



Freedom is not Free

Letohatchee, AL

Here are a few pictures. That is my grand-daughter with the 1st trophy that the car received on July 4th 08. I am going to start working on the new interior this week, I am going for the mild custom look in antique white. The engine picture was taken before i added power disc brakes.


















Jeff Leydig
Stallions Auto Interiors
Stearns, Ky. USA

Jeff:

If your rear is original, it is not a posi.  Ford didn't install factory posis until '59.  So if you jack up both wheels and turn one, you'll probably just turn the other one in the opposite direction.  Jack up one wheel and turn it 2 revolutions and count driveshaft revolutions.

John - "The Hoosier Hurricane"

All of the ratios were pretty close with OD. Either 3.89, 4.09 or 4.11.

Kenneth

Fredricksburg, Texas

Thanks for the info. This old Merc is a learning experience for me.

Jeff Leydig
Stallions Auto Interiors
Stearns, Ky. USA

Although Ford didn't install a posi they were available aftermarket from Detroit Gear. I have on in my 56 Victoria. Chuck in NH

Y's guys rule!
Looking for McCullouch VS57 brackets and parts. Also looking for 28 Chrysler series 72 parts. And early Hemi parts.

MoonShadow, 292 w/McCulloch, 28 Chrysler Roadster, 354 Hemi)
Manchester, New Hampshire

Theres a slim chance the metal I.D tag could still be attached to the diff. Save you the trouble of  doing it the other way.