Rear end identification help
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Tuned
Joined: Aug 2013
Posts: 284
Likes: 6
From: Chico, TX
Rear end identification help
I have a 1962 f-100 with a Ford 9 inch rear end. There was a metal tag bolted to one of the pumpkin bolts and after a slight blast, water and bright flashlight was able to get these numbers off the tag. Can anyone help me ID the component?
CZTA 4001 L 302
370. 260
Any help will be appreciated.
CZTA 4001 L 302
370. 260
Any help will be appreciated.
Laughing Gas
Joined: Dec 2010
Posts: 1,091
Likes: 14
From: Tucson, Arizona
Sorry that this will be almost no help, but I'm pretty sure the final drive ratio is 3.70 and if it is a Ford 9 inch it will be non-limited slip as Ford was not making limited slip 9 inch axles in 1962. It would probably have been a Dana diff to get limited slip. Better than nothing (but not much). Since you have the data plate, there's a fair chance that might still be the original ring and pinion in there after 52 years - but no guarantee.
Senior User
Joined: Nov 2014
Posts: 101
Likes: 0
From: nw pa
ss, my 65 has a non 9" rear end, and it has a limited slip tag on it. 3(L)54 gears, loads from the rear. iv'e been told a dana 44? has 100k on it, so obviously it's a pretty servicable unit, but how do they compare with the 9"? are the rear brakes the same as a 9"?
Laughing Gas
Joined: Dec 2010
Posts: 1,091
Likes: 14
From: Tucson, Arizona
Yellodog - does your '65 have its original warranty plate riveted to the driver's door? If so, and the axle code is A8, then your differential is a Dana 44 with limited slip and 3.54 gears. If the axle code is A9, then your differential is a Dana 60-2 with limited slip and 3.54 gears. This information comes from my '66 Ford Truck factory workshop manual, Group 1, Vehicle Identification, page 6, Figure 18. I don't think the codes for '65 are different than '66, but if so I apologize.
Senior User
Joined: Nov 2014
Posts: 101
Likes: 0
From: nw pa
thanks ss, door tag says A8, so it's a dana 44. wish it was a 9", i could put a higher ratio in it cus i have several 9" center sections, and i'd like to make it a little more cruising friendly. that being said, i brought it home at 65mph, no problems.
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