Rear Axle Ratio...how do I know what I have?
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Rear Axle Ratio...how do I know what I have?
My new to me 03 EB Exc 4x2 is equipped with the factory towing package. I'm not towing that much - a 4500lb max weight popup camper. How can I determine what the axle ratio is in the rear end of my truck? Oh, it is a 5.4l v8 - and no, it doesn't win a drag race - but it sure moves quickly enough for hauling my family around safely!
thanks...
thanks...
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#3
If it's close to this:
Then you have 4.10:1 gears.
If it's below 2k rpms at 60 mph, then you have the 3.73:1 gears.
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If you want to know your "rear axel" look in the drivers door jam:
You will see an axel code
If your axel code begins with a LETTER you have a posi rear-end
Get the axel code and look up the code for ratio.
Your Excursion being 2WD with a 5.4 engine should have a 4:10 if the axel code starts with a letter then it should have a posi-track rear end, if not a standard 4:10 rear end. Unless it has been changed over the years.
There are exceptions but few.
You will see an axel code
If your axel code begins with a LETTER you have a posi rear-end
Get the axel code and look up the code for ratio.
Your Excursion being 2WD with a 5.4 engine should have a 4:10 if the axel code starts with a letter then it should have a posi-track rear end, if not a standard 4:10 rear end. Unless it has been changed over the years.
There are exceptions but few.
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#13
I also means that as long as you are happy with the way it tows, save your $750 and keep driving it the way it is. (Regearing costs about $750 per axle to have a quality shop do it.)
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I called my local dealer with my VIN and they looked up my axle for me.