TruTrac vs Ford LSD

ChrisOIFdoc · Aug 19, 2017

Gary Waugh said:
Not to hijack this thread, but I have a 2008 expedition but no idea if this model came with an LSD or not? Can anyone confirm if it was an option and how I find out if my Exp has the option or not. I rarely go off-road but do pull a lot of trailers in dirt parks (off-road motorcycling) so would like to know if I have an LSD just for extra peace of mind!!
Probably find Ford has fitted some fancy electronic device which applies the brakes to a spinning wheel to try and mimic an LSD!!

Any info would be very welcome.

Gary

Were you able to get your answer?

Gary Waugh · Aug 20, 2017

I haven't tried running the vin number yet, but will give it a go. Anyone recommend a reputable site?

Regards Gary

ChrisOIFdoc · Aug 20, 2017

This one will give you the best info. You should still look at your driver's side door sticker for the axle code.

https://www.ford-trucks.com/forums/vindecoder.php

Gary Waugh · Aug 20, 2017

Many thanks, I ran that link and it made no mention of an LSD, so probably don't have one, but will check the axle code as suggested.

Many thanks Gary

ChrisOIFdoc · Aug 20, 2017

Gary Waugh said:
Many thanks, I ran that link and it made no mention of an LSD, so probably don't have one, but will check the axle code as suggested.

Many thanks Gary

Axle code was the only way for me to find out. Link was for gear ratios, tranny etc.. I should have specified. Oops

gtncpa · Aug 22, 2017

acolic said:
Good day,

I have a 99 Ford Expedition with what I believe is a 3.50 rear axle.

I have heard that some folks have replaced their rear differential with a TruTrac differential to get the benefits of a LSD.

I had originally thought that the first gen expedition came with an open differential but my mechanic mentioned that my model came with a LSD.

Is the correct?

If the first gen already had a LSD why are people swapping in a TruTrac?

Thanks

I cant speak to my Expedition, but the best upgrade I did to my Mustang was to go from Ford's rear end to an Eaton TruTrac. It is night and day. With the right tires on my Mustang I am even able to drive in snow. In my opinion TruTrac is the way to go!

acolic · Aug 22, 2017

I'm assuming this isn't a DIY job and should be done by a licensed mechanic? It's not as simple as taking the old differential out and installing the new one?

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ChrisOIFdoc · Aug 22, 2017

acolic said:
I'm assuming this isn't a DIY job and should be done by a licensed mechanic? It's not as simple as taking the old differential out and installing the new one?

Sent from my iPhone using Tapatalk

If you're not comfortable with doing it, then hire a mechanic. if you're confident in your ability to learn, then do it yourself. I prefer to do things myself, but that's just me.

acolic · Aug 23, 2017

I'm a DIY type of person as long as there's instructions. I'm not comfortable if I pull a differential out its box and that's all their is.

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jim midd · Aug 23, 2017

Gary Waugh said:
Many thanks, I ran that link and it made no mention of an LSD, so probably don't have one, but will check the axle code as suggested.

Many thanks Gary

Not sure if this is same link you tried, but if not try this https://www.etis.ford.com/vehicleRegSelector.do

After entering your vin click on Minor features to expand that list and look there for axle info. If it's not listed there, your truck probably didn't come with it

TruTrac vs Ford LSD

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