used ring and pinion?

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None really. Depends on how bad they are worn.
 
What are you looking for?
Rear size, ratio wise?
 
There really isn't any issues. I have a used set in my Valiant and my '74 Dodge pickup.


Chuck
 
Unless, they came outta a 600HP "race" car you should be fine. If you wanna make sure there OK. You could have em "magnafluxed" for cracks. Besides that a good wear pattern as said above is all ya need.
 
Sort of depends on a few things:

How used is the gear set?

did it come from a stock street car, a built up street car or a heavily raced car?

How are you going to use it?

if you are racing with a high horsepower, high stall speed converter (or manual trans) , then you will want a fresh new gear, since you will only get so many launches from a gear set before it fails.

If you are building a street machine or a lightly raced dual purpose car then a used gear set may be a good way to save money.

Bob

PS:the 3:91 gears in my car came out of a 1961 dodge D-100 6 cyl/ 3 speed van with over 100K miles on it. they were then exposed to a year or so of use in a 1970 Charge RT with a built 440/375 auto trans. I used them for another year in my 1967 Barracuda street car powered by a 340/275 engine with auto trans. this year they have lived behind my 340 engine powering my 1973 dart sport to 12.90's @ 105 mph. 97 runs down the 1/4 mile this season already!
 
Very true on the above....what did they come out off?

I have a set of 3.21's for a 9-1/4. They look and worked great. Went up a hiar to 3.55's. Personal choice was the reason for the ratio.
 
I was looking at a 3.55 but really want a 3.73 it's an 8/1/4 will be used mainly for street (mustang, camaro,hunting etc.) Also want to get my supervisor to the track so I can blow off his ford lightning truck.
Thanks and God Bless
Bruce
 
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