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differential help needed

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Old Jul 25, 2006 | 08:21 PM
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Default differential help needed

I have a 74 automatic with a turbo 400 has a 308 rear end. today bought a set of 411 richmonds. problm is it says i need a # 4 carrier is this a magor deal??? any help would be appreciated
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Old Jul 25, 2006 | 08:52 PM
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I would say so, if you dont have one.
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Old Jul 25, 2006 | 09:02 PM
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3:08 to 4:11

I hope your not using this for a daily driver
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Old Jul 25, 2006 | 09:10 PM
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no way maybe 2000 miles a year at best
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Old Jul 26, 2006 | 08:38 AM
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Originally Posted by Jspyder23
no way maybe 2000 miles a year at best
I drive about the same &
am very happy I went FROM 4.10s to 3.36s
I think you'd be much happier with 3.55s

2700rpm @ 50 mph is not fun after a while!
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Old Jul 26, 2006 | 09:08 AM
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Originally Posted by Jspyder23
I have a 74 automatic with a turbo 400 has a 308 rear end. today bought a set of 411 richmonds. problm is it says i need a # 4 carrier is this a magor deal??? any help would be appreciated
If you don't have a #4 carrier, I'd send the gears back and get something that will fit your #3 carrier. I have 3.55's and am happy with them, but I also have a complete 4.56 unit sitting under the bench, for those times when I may want a little more excitement.
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Old Jul 26, 2006 | 10:22 AM
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Richmond may give you setup headaches and require a 4 series carrier. You can get them relatively cheap as there is not too much demand for them anymore. You can save money by returning the 411 set and looking for a Tom's 411 set that will work with your present 3 series carrier.
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Old Jul 26, 2006 | 04:42 PM
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Originally Posted by sxr6

2700rpm @ 50 mph is not fun after a while!
I run 2700 RPM @ 70MPH
Im still trying to figure out which gears I have
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Old Jul 26, 2006 | 05:08 PM
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Originally Posted by gtr1999
Richmond may give you setup headaches and require a 4 series carrier. You can get them relatively cheap as there is not too much demand for them anymore. You can save money by returning the 411 set and looking for a Tom's 411 set that will work with your present 3 series carrier.

Order up the thick 4:11's
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Old Jul 26, 2006 | 08:05 PM
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I'd definitely send the gears back, and purchase the the thick 4.11 set that fits the 3 series carrier with no problems. I have these 4.11's in my '69. They are available from Zip products and made by U.S. Strange.
See this link http://www.zip-products.com/Zip/prod...A5C9D524489CAB
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Old Jul 26, 2006 | 09:02 PM
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I'm also looking at getting a rebuilt differential from fastcorvette.com - right now have a 3.36 in my '73 which has a ZZ3 engine, and not sure which one to get - I don't plan on doing any drag racing, but want good takeoff power and somewhat decent gas mileage - I'm thinking either a 3.55. or a 3.70 - any thoughts?
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Old Jul 26, 2006 | 09:27 PM
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[QUOTE=bslocum1]I'm also looking at getting a rebuilt differential from fastcorvette.com QUOTE]

you might want to do a search on fastcorvette.com.....
...redvetracr
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Old Jul 26, 2006 | 09:40 PM
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Originally Posted by bslocum1
I'm also looking at getting a rebuilt differential from fastcorvette.com - right now have a 3.36 in my '73 which has a ZZ3 engine, and not sure which one to get - I don't plan on doing any drag racing, but want good takeoff power and somewhat decent gas mileage - I'm thinking either a 3.55. or a 3.70 - any thoughts?
Go with Tom's 3.73, also have Gary rebuild it (GTR1999). He doe's awesome work, plus alot of extras others don't. Worth the price. He just finished mine. Can't wait to install it.
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Old Jul 26, 2006 | 10:01 PM
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[QUOTE=redvetracr]
Originally Posted by bslocum1
I'm also looking at getting a rebuilt differential from fastcorvette.com QUOTE]

you might want to do a search on fastcorvette.com.....
...redvetracr
Is there something I should know about them before I buy ????
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Old Jul 27, 2006 | 08:57 AM
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Originally Posted by Bob Onit
I run 2700 RPM @ 70MPH
Im still trying to figure out which gears I have
My buck says you got 3.08s in there
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Old Jul 27, 2006 | 11:33 AM
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Originally Posted by sxr6
My buck says you got 3.08s in there
Thats my guess as the 2.73:1 was not offered in 73
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Old Jul 27, 2006 | 12:42 PM
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Originally Posted by C3 Stroker
I'd definitely send the gears back, and purchase the the thick 4.11 set that fits the 3 series carrier with no problems. I have these 4.11's in my '69. They are available from Zip products and made by U.S. Strange.
See this link http://www.zip-products.com/Zip/prod...A5C9D524489CAB
Thanks for the info c3stroker.I called and ordered those gears from zip they are supposed to be in on the 30th of this month. thanks again
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Old Jul 27, 2006 | 05:11 PM
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Originally Posted by Jspyder23
Thanks for the info c3stroker.I called and ordered those gears from zip they are supposed to be in on the 30th of this month. thanks again
Don't hold your breath on that one. Tom's is still out from my last check so unless you find a guy that has them on the shelf it will probably be past the 30th. If you do find them expect to pay more too, I needed a set of 373's and the cost was about $100 higher then normal so I gave up my own set to help out my friend.

Did you check with Dan at Van Steel?
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Old Jul 27, 2006 | 08:32 PM
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No I just clicked on the link that c3stroker posted for me.I really hope they come in I already kicked out about 600.00 with the first set from summit and now these at 359.00
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Old Jul 27, 2006 | 08:48 PM
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I regret ever dealing with fastcorvette. They will bill your credit card when you place your order and it may be months before you recieve anything. When you do recieve it you may not be happy with the quality. You may also spend more money on long distance phone calls than your core charge that you are trying to get refunded is worth. You also may not get this refund without threatening to call your credit card fraud dept. FWIW give gtr1999 the extra money for a quality piece, its well worth it.
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