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Discussion Starter · #1 ·
Hello,
I am considering purchasing a 66 Pro Street Chevelle that has a spool installed. As I'm not interested in racing the car and will be driving it on the street only, I am interested in knowing what type of differential I should replace it with and what the labor and differential unit costs involved are.
Thanks for any advice and help you can give me.
65EC
 

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What rear end? If its pro street I assume something that has been narrowed. You can just replace the spool with a differential carrier. If you want to swap out the entire rear end, that would cost more.
Bill
 

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ok few bits of info needed.
1) what brand and spline axel as this makes a difference?
2) do you want a locker or limited slip style differential?
3) is it a car or truck ring & pinion gear yes they do have differances?
this will gat us started down the right path
 

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well there are a meriad of choices if limited slip and mostly street an eton or auburn will be fine if gonna beat on it a lot try a better brand tye 4wheel parts whole sale they have better prices then summit and jegs and will price match if theres is higher and they carry every kinda diff known to man. just my 2 cents
 

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Just be aware that spool axles are longer. With a posi, locker or whatever you choose other than a spool, you may find that the axles will not go all the way in. Think about the physical dimensions of a spool vs. a posi.
I sell axles almost everyday and this is a common oversight. When ordered, short of DNA samples, mfgs are very specific as to what info is required. In addition, some mfg's even have variations. Mark Williams, for instance, puts a slight pitch in their splines. If you don't know that when you order new axles or center, it just will not fit.
Just to add: One of my WD's came in a week ago to order axles. His customer went from a posi to a spool. His axle splines only penetrated a third of the way in and he broke them.
If any Team Chevelle member is interested in knowing what axles you need, please email me at work: [email protected] and I'll be happy to plug your numbers into my axle program and give you some specs. I use two programs when I order so I can double check myself and get more specific numbers from the second program. There is no obligation to buy from me. I like to order axles once, if you know what I mean! We have a shelf full of bad orders (either past customer error or saleman error) and that shelf haunts me every time I look at it. After my 30 year "vacation", I've been back at S&W almost a year and have had good luck with my axle orders and subsequent customer satisfaction.
Anything I can do for a TC member, I'll be happy to do. Please, email and do not call, unless you want to order. I will do the axle sheets in my spare time.
I will need: Type of housing (Dana, 12 bolt, Ford etc), housing flange to housing flange dims, axle flange to axle flange, type of ends, spool or posi and mfg, brakes (drum or disc, also specify mfg), splines, type of housing ends, pinion orientation (centered or offset and by how much), B/C and stud size.
BTW, we are a Strange, Mark Williams, Moser and Currie dealer.
 
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