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#7989 09/07/2004 12:12 AM | Joined: Nov 2003 Posts: 11 Junior Member | | Junior Member Joined: Nov 2003 Posts: 11 | does any one know what kind of axle could be under this truck? I can tell you that it is a perfect circle shaped cover and that from the books i have, NOT a dana axle. can't find the i.d. tag either. the problem is that theses books dont tell what it IS. Also, did th400's come stock in these fine automobiles? | | |
#7990 09/07/2004 12:13 AM | Joined: Nov 2003 Posts: 11 Junior Member | | Junior Member Joined: Nov 2003 Posts: 11 | ooops. It is actually a 3/4 ton. | | | | | Joined: Mar 2004 Posts: 3,068 'Bolter | | 'Bolter Joined: Mar 2004 Posts: 3,068 | If it has a removable differential carrier and a removable rear inspection cover, I would say you have an Eaton differential. I have a couple and they are indestructable.
Scott | | | | | Joined: Feb 2004 Posts: 29,807 Kettle Custodian (pot stirrer) | | Kettle Custodian (pot stirrer) Joined: Feb 2004 Posts: 29,807 | The Eaton was pretty much the standard 3/4 ton and 1-ton rear end, and was used for several years. It had several ratio options, and was even available with a Detroit Locker differential in the later models. We ran them in dirt-track race cars in the 70's, behind 500-HP engines without any real problems. They were goshawful heavy in those dirt cars, though! One identifying feature is a backlash adjustmnet on the side of the carrier housing on the driver's side, that bears against the side of the ring gear when it's coasting. Tricky to adjust!
Jerry
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| | | | | Joined: Nov 2003 Posts: 11 Junior Member | | Junior Member Joined: Nov 2003 Posts: 11 | It does kinda have that heavy duty indestructable look to it. Thanks for the info guys. | | | | | Joined: Jun 2000 Posts: 2,773 'Bolter | | 'Bolter Joined: Jun 2000 Posts: 2,773 | You probably have the TH400 tranny, the way to identify it is by the shape of the pan. Go here: http://www.novak-adapt.com/knowledge/th400.htm Your differential should be either a 10 or 12 bolt, you count the number of bolts in the cover. From my knowledge of these you should have a 4.10 gear ratio, since you have the automatic. Standard tranny was the SM465, which came with 4.57 gears.
Fred
52 3600
69 C-10
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#7995 09/08/2004 12:56 AM | Joined: Jan 2001 Posts: 613 Member | | Member Joined: Jan 2001 Posts: 613 | i had a 69 3/4 longhorn.its auto trans had an extra low first gear.it would whine through first. | | |
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