Im going to replace my Ball Joints but need to know what weight my front axle is. The code on the tag inside the door jam says its a C9, but the owers manuel does not have that listed. When I went to napa to buy ball joints the weight did not matter for the lower joints but for the uppers there was a choice of two axle weights to choose from, a 3??? # and a 4??? #. I know I have a dana 44 front axle but that does not tell me the weight. Where else should I look to get this info i need. Thanks in advance

 

The axle code on your VIN sticker is 3 digits..not 2...The 3rd digit is for the front axle.

 

Axle Decoder Chart

Code Ratio Capacity Maker Type Yr

12 2.73 3800 FORD REG 1991
17 3.25 3300 FORD REG 1971
17 3.31 3800 FORD REG 1995
18 3.08 3800 FORD REG 1991
19 3.55 3800 FORD REG 1991
25 4.10. 5300 FORD REG 1991
29 3.55 5300 FORD REG 1991
35 4.10. 6250 FORD REG 1991
36 3.73 7400 DANA REG 1980
39 3.55 6250 FORD REG 1991
45 4.10. 7400 FORD REG 1991
49 3.55 7400 FORD REG 1991
65 4.10. 8250 FORD REG 1991
69 3.55 8250 FORD REG 1991
72 4.63 11000 DANA REG 1991
73 5.13 11000 DANA REG 1991
H5 4.10. 3800 FORD LIMITED SLIP 1991
H7 3.31 3800 FORD LIMITED SLIP 1995
H8 3.08 3800 FORD LIMITED SLIP 1991
H9 3.55 3800 FORD LIMITED SLIP 1991
B5 4.10. 5300 FORD LIMITED SLIP 1991
B9 3.55 5300 FORD LIMITED SLIP 1991
C5 4.10. 6250 FORD LIMITED SLIP 1991
C9 3.55 6250 FORD LIMITED SLIP 1987
D5 4.10. 7400 FORD LIMITED SLIP 1991
F5 4.10. 8250 FORD LIMITED SLIP 1991
W5 4.10 8250 FORD LIMITED SLIP 1995


Ok I found this online, The C9 matches what the sticker says, so is this all I need?

 

The year and model would be super helpful.

Based on your username, it sounds like you have a 1990 F-250 with a Dana 44TTB front axle. If that's the case, it's the lower-weighted axle with the Dana 50 TTB being the stronger one. I don't know if the ball joints are interchangeable or not; if they are it would be a good time to upgrade.

 

yes my user name is what I drive but i should have said so. You are prob right but i was curious on where to find the info for this stuff anyway for future times. The chilton and Haynes manuels have a vehicle identification chart in it but it mostly says year make model what factor it was built at and what is the factory paint number. and size engine. That is usually something peopel should know anyway if the own the thing besides factory and actual paint code. Is there a site that can break the vin and id tag down more