how do i find out what gears are in my rear end?

35

Asked by Jul 20, 2007 at 05:37 PM about the 1986 Ford Mustang LX

Question type: General

5 Answers

42,595

Your VIN number may indicate the gearing to a Ford dealer...Alternately, if your Service Parts label is still on the inside of the driver's doorframe near the latch assembly, it will have a code which can be translated for the rear gears. The only other alternative is to crawl underneath the vehicle and look for a metal tag which is typically affixed underneath one of the differential cover bolts, which will tell the axle code on it. These tags are usually long gone from rust and corrosion, though.

145

stock for the lx if its a v8 are 2.73s

35

I know how to do it the hands on way with it torn apart but im not sure otherwise...does any know if the ring moves at the same revolutions as the tires? i doubt they do....

1,245

well they should on average.. if one wheel is traveling at 90% its speed the other has to turn at 110%, if they dont theirs something seriously wrong...

2,445

Jack your car up, and turn the wheel one revolution, count your revolutions of the drive shaft!!! tire one spin/drive shaft 3 3/4, it's a 3.75:1 tire one spin/drive shaft 3, it's 3.00:1 and so on......hope this helps

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