rear end question
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rear end question
what was the lowest gear in a 9 inch rear and what did thay come in i am on the hunt for a good rear end on the cheap some one told me about a f 350 with 4.88 gears how big of a rear end would that be, to big for a car or to wide any help would be great thanks
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Joined: Mar 2002
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From: Bonita Springs FL
The lowest gears made were not available from the factory - aftermarket only.
An F-350 is going to have either a Dana 70, sterling 10.25 or sterling 10.5 - depending on the year. You'd have to get a pretty early F-350 to get 4.88 gears. I know in the 80's and 90's you could only find 4.10's from the factory.
It would also be an 8 lug full floating axle, which is pretty big for anything but a truck.
I guess the question is, what is this going into and what do you want it to do?
An F-350 is going to have either a Dana 70, sterling 10.25 or sterling 10.5 - depending on the year. You'd have to get a pretty early F-350 to get 4.88 gears. I know in the 80's and 90's you could only find 4.10's from the factory.
It would also be an 8 lug full floating axle, which is pretty big for anything but a truck.
I guess the question is, what is this going into and what do you want it to do?
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well this will be going to be going in to an out law demolition derby car so size is not to much of a problem but i dont want a big 3/4 ton full floter i would like it to be a 5 or 6 bolt i am trying to get the lowest factory rear end gear i can find in something very strong so i can beat the crap out of it and not blow up the pumkin or bust an axle
Post Fiend
Joined: Mar 2002
Posts: 19,402
Likes: 38
From: Bonita Springs FL
If you want 5.14 gears, then you will definitely have to go aftermarket. You'd need to buy a ring & pinion and an install kit. Then take it to someone if you don't know how to do it yourself - it's not a shadetree job. 
