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Discussion Starter #1
I have found a garage that will just charge me labor for putting in 4.10's. Other than the $189.00 4.10 ring and pinion gear set from Summit, what other parts should I bring for them to do the job? My car has 33,500 miles on it.
 

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Discussion Starter #3
What is the friction modifier all about? How much? Also, which synthetic should I use? Thanks for the lead on the $149.00 parts by the way!! :)
 

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An aluminum drive shaft
 
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