Split rear end help
Thread Starter
|
New User
Joined: Dec 2012
Posts: 2
Likes: 0
Split rear end help
Mornin' all!
I have just purchased and gone through my '52 F6. It is now licensed and useable but I still need to improve. I don't have a speedo or tach working and can't tell the difference in the split rear end while driving. It is supposed to have a 6.33 - 8.81. with the control pushed all the way into the dash is this supposed to be the 6.33 or the 8.81 final drive?
Thanks,
Neal
I have just purchased and gone through my '52 F6. It is now licensed and useable but I still need to improve. I don't have a speedo or tach working and can't tell the difference in the split rear end while driving. It is supposed to have a 6.33 - 8.81. with the control pushed all the way into the dash is this supposed to be the 6.33 or the 8.81 final drive?
Thanks,
Neal
Super Moderator
Joined: Apr 2004
Posts: 34,503
Likes: 2,820
Welcome to FTE.
One of my dad's trucks (F6, '48 iirc) had the dash mounted switch. Again, iirc, that's a vacuum set up for shifting, vs. the electric shift of later models, mounted on the shifter. Anyway, in is low, out is high.
The difference is dramatic. If you can't fell it by the seat of your pants, it's not shifting. It is akin to a gear change in the transmission, so it's not a subtle change like the 2nd OD in a new 6 speed automatic!
Two speed info here in post 5:
https://www.ford-trucks.com/forums/1...-problems.html
Pics and links in post 1 & 3. Note post 3 has a link to pic with the vacuum pot on the axle.
https://www.ford-trucks.com/forums/7...peed-diff.html
I thought I could find more on the vacuum shift, but not right now. A quick look at the axle will tell the tale. Electric parts are available, and I think it was said in one of those links that you can convert the vacuum to electric.
IF, IF yours turns out to be electric, parts info here in post 2:
https://www.ford-trucks.com/forums/1...-problems.html
One of my dad's trucks (F6, '48 iirc) had the dash mounted switch. Again, iirc, that's a vacuum set up for shifting, vs. the electric shift of later models, mounted on the shifter. Anyway, in is low, out is high.
The difference is dramatic. If you can't fell it by the seat of your pants, it's not shifting. It is akin to a gear change in the transmission, so it's not a subtle change like the 2nd OD in a new 6 speed automatic!
Two speed info here in post 5:
https://www.ford-trucks.com/forums/1...-problems.html
Pics and links in post 1 & 3. Note post 3 has a link to pic with the vacuum pot on the axle.
https://www.ford-trucks.com/forums/7...peed-diff.html
I thought I could find more on the vacuum shift, but not right now. A quick look at the axle will tell the tale. Electric parts are available, and I think it was said in one of those links that you can convert the vacuum to electric.
IF, IF yours turns out to be electric, parts info here in post 2:
https://www.ford-trucks.com/forums/1...-problems.html
Thread Starter
|
New User
Joined: Dec 2012
Posts: 2
Likes: 0
Thanks very much! It is the vacuum unit and I can hear it clunk when at a standstill. Once I figure out how to add pictures I will. This is going to be a regular use vehicle and has a slightly later 292 engine.
Thread
Thread Starter
Forum
Replies
Last Post
Jimmyrigg
1948 - 1956 F1, F100 & Larger F-Series Trucks
3
May 23, 2019 07:40 PM
Bubba-88
Clutch, Transmission, Differential, Axle & Transfer Case
1
Aug 22, 2014 12:41 AM
kbengt
1948 - 1956 F1, F100 & Larger F-Series Trucks
3
Feb 2, 2012 11:52 AM
