Upgrage to LSD?

Had the truck in at the dealer for a vibration and no engagement into 4WD. '05 4.0L 4x4 auto.

They said the 4WD problem is a switch in the front diff, and the vibration is coming from the rear diff. They said there's metal filings in the rear diff and it would be more cost effective to replace the rear axle than rebuild.

Question: if I'm putting in a new rear axle, is there a benefit to going LSD from a newer Tacoma? Only do lite occasional wheeling but lots of driving in snow.

Side note: I was surprised at their diagnosis of the rear diff, because when I turned right the vibration went away, so I assumed it was a bad wheel bearing.

 

Just spoke to the dealer about an LSD rear diff replacement/upgrade.

They said that with all the additional electronics, it's probably not feasible.

.... are the LSD's in the tacoma's electronically actuated? I thought LSD's were mechanical only?

 

That's bull $hit, I got my LSD installed a few months ago by Toyota for $300; its just a direct bolt on part. My price was a hook up price BTW, I'm not sure what it would normally price would be.

BTW didn't the LSD system change for 2010?

 

haha.. yeah I knew that what I was trying to say was no electronics involve; it just bolts on. Does $500 include part or just install?

 

Is your truck still under warrantee? I thought all the driveline components were warranteed for like 6 years?
If your truck is still under warrantee...have the dealership fix it under warrantee.

Then - as an after thought....do some research on aftermarket LSD's (mechanical). You could probably find an aftermarket LSD unit (carrier replacement) and have it professionally installed in your current 3rd member (diff housing).

The 05-08 trucks that have LSD's - are all mechanical clutch pak operated.

The 09+ trucks have an open differential with AUTO LSD which is operated by the braking system.

 

I recommend the Detroit TruTrac. I've had mine about a year now and have been very happy with it

 

That's what I thought. I'm going to get back on the phone with the dealer. I love dealing with 'service advisers' whom have probably never turned a wrench before.

Truck is 25,000 km's over warranty. That's another battle that I have to fight.

If I'm getting the rear axle replaced, I may as well upgrade.

 

I have some driveline vibration as well (prob due to the angle of my driveshaft after 3" lift and I haven't changed the diff. fluid yet after 93k miles ( I know... no flaming me)...But I sure hope mine doesn't need replaced...

 

IC, it looks like I paid for the part and they installed it for free with the drive line vib TSD. BTW I also got them to install my 5100 for free during the suspension TSD.