( H6 ) - is a 3.73 limited slip differential on a Ford truck / SUV
I did a Google search and found a couple of entries that show a 1984 F-150 " H6 " as being a Ford 9 inch limited slip differential with a ( 3.50 gear ratio )
For a 2001 F150, you can check the axle codes on your door sticker. The axle code to rear axle ratio values are as follows: 17 for 3.31 open differential, 19 for 3.55 open differential, H6 for 3.73 limited slip, H7 for 3.31 limited slip, and H9 for 3.55 limited slip.
Ford Expedition Axle Ratios Look for the vehicle certification label on the driver's door. This label will say "MFG. by Ford Motor Company" at the top, and will list front and rear GAWR, tire pressures and will show a bar code. Below the bar code find a grouping of terms including AXLE. Directly below this word is the axle code: 17 = 3.31 non-limited slip 19 = 3.55 non-limited slip H6 = 3.73 limited slip H7 = 3.31 limited slip H9 = 3.55 limited slip Here is a link to "most" axle codes. "http://www.drivetrain.com/Fordtrkratio_posidata.html"
h6
The answer will depend on what 19b4 and h6 are.
your h6 has a timing chain
Porsche H6 means Porsche Flat-6 Cylinder Engine
Benzene
H6 tolerance for 95 mm hole is +0.022/0
Usually the entire axle is replaced rather than trying to repair the CV joint.
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