4wd not engaging and bad front end vibration/wobble

Asked by Jan 06, 2016 at 04:51 PM about the 1999 Ford F-250 Super Duty XLT 4WD Extended Cab SB

Question type: Maintenance & Repair

I just recently had front axle seals replaced on
my 1999 ford f250 4wd, an ever since my 4wd
want engage, sounds like the gears are grinding
and popping an when disengaged an in park the
transfer case shaft an left side axle free spins
an right side axle seems to be locked when I
turn by hand. Also from time to time there's a
bad vibration/wobble at 40+ mph. bad enough
that it's shakes everything inside the truck an
makes it hard to control at times. I'm a
mechanic myself but this vibration has me
puzzled. Any idea's.

1 Answer

6,315

Having the super duty front axle the drive axle goes through the hub bearing and should be secured by a snap ring. If the axle end isn't secured positively it could cause a wobble at the universal joint behind the hub that would get worse at higher rpm's. If this is the case then depending on how you hubs lock (vacumn or manual) a vacumn hub would be prone to unlocking.

Your Answer

Add photo

Related Questions

Search Ford F-250 Super Duty Questions

Ford F-250 Super Duty Experts

#1 Tracy Hooks
Tracy Hooks
Reputation 780
#2 FordNut
FordNut
Reputation 660
#3 kbro
kbro
Reputation 590
View All

Related Models For Sale

Used Ford F-350 Super Duty
371 Great Deals out of 27,134 listings starting at $2,495
Used Ford F-150
2,410 Great Deals out of 209,431 listings starting at $895
Used Dodge Ram 2500
133 Great Deals out of 5,246 listings starting at $2,500
Used Ford F-250
487 listings starting at $3,975
Used Chevrolet Silverado 1500
1,948 Great Deals out of 159,904 listings starting at $1,995
Used Toyota Tundra
508 Great Deals out of 32,114 listings starting at $2,995
Used GMC Sierra 1500
876 Great Deals out of 64,410 listings starting at $1,500
Used Dodge Ram 1500
428 Great Deals out of 11,401 listings starting at $700
Used Dodge Ram 3500
79 Great Deals out of 2,179 listings starting at $5,950
Used Ford Mustang
320 Great Deals out of 45,523 listings starting at $2,000
Used Ford F-450 Super Duty
38 Great Deals out of 2,633 listings starting at $8,495

Used Cars For Sale

2017 Ford F-250 Super Duty For Sale
9 Great Deals out of 27,793 listings starting at $23,886
2016 Ford F-250 Super Duty For Sale
18 Great Deals out of 5,116 listings starting at $24,995
2015 Ford F-250 Super Duty For Sale
22 Great Deals out of 2,222 listings starting at $13,900
2014 Ford F-250 Super Duty For Sale
15 Great Deals out of 968 listings starting at $11,900
2013 Ford F-250 Super Duty For Sale
20 Great Deals out of 883 listings starting at $11,995