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Old 07-07-2013, 07:27 AM
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You have 2 weak links in the drive train, but as long as you don't abuse it too much it should be fine with street tires. The T5 and the 7.5 rear end can not handle a lot of abuse.

If this car will be built toward street/strip use then the Eaton Posi or Yukon Dura Grip would be a good choice. If it will be built more for street and auto cross/road racing then the Truetrac or Torsen would be a good choice. All of these are available in 3 series with 28 splines. When you make your choice I can recommend a good supplier for the parts.

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Old 07-07-2013, 07:48 AM
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More street than anything i guess the eaton posi ,couldn't find any numbers spare cover or console who's the suppliers
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Old 07-07-2013, 07:58 AM
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The codes are on a white sticker that is usually on the bottom of the console lid or on the back of the spare tire cover. Yours might be in a different location. If you can find it you will have all of the information about what your car came with, including the engine, transmission, suspension, brakes and other options. The codes are in alphabetical order and the rear end codes start with a G, the engine codes start with a L and the transmission codes start with a M.

Tom's Differentials is a great place to get Eaton parts, installation kits and AAM axles. His prices are good and his parts are among the best. He is kind of a grumpy old fella, so don't take it personal if he isn't cheerful.
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Old 07-07-2013, 08:14 AM
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Did have one on door before paint gone now do have plate on radiator support. Will have to tell my wife goverment passed a bill for 85 and older cars must have rearends updated lol
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