New rear diff install!!
Thread Starter
Driver
Joined: Oct 2010
Posts: 129
Likes: 0
From: tx
New rear diff install!!
Hey guys just got my Gs300 rear and it ready to be installed in my gs400. I'm pretty excited I've been waiting for this for weeks. Is there anything I need to know about the install before I start? I hear it just bolts in but it's usually not that easy. I'll post updates as soon as I complete the install.
Hey guys just got my Gs300 rear and it ready to be installed in my gs400. I'm pretty excited I've been waiting for this for weeks. Is there anything I need to know about the install before I start? I hear it just bolts in but it's usually not that easy. I'll post updates as soon as I complete the install.
Oh and you have to unbolt the middle section of the exhaust for the diff to drop down. It's pretty obvious but just wanted to let you know.
Thread Starter
Driver
Joined: Oct 2010
Posts: 129
Likes: 0
From: tx
Awesome thanks. What about the where the axle shafts bolt to the diff are those the same? Or do I have to swap them for one diff to the other? Same with where the drive shaft bolts to the diff?
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Thread Starter
Driver
Joined: Oct 2010
Posts: 129
Likes: 0
From: tx
Ok the rear diff is finally installed after 1h and 18m!! It runs great! Such an inexpensive upgrade (well if you do it
Yourself) and the difference is very noticeable. Thank you guys again for the advice before I started this project.
Yourself) and the difference is very noticeable. Thank you guys again for the advice before I started this project.
... Enjoy the upgrade!!
The stock GS400 gear ratio is 3.23. The stock GS300 gear ratio is 3.92. So basically you get a higher gear ratio so your rpm's are higher at any given speed increasing low end speed and torque. It also helps city driveability since your always in the torque curve. But you do lose some MPG's on the freeway since your revving at about 3k at 80MPH
Thread Starter
Driver
Joined: Oct 2010
Posts: 129
Likes: 0
From: tx
Yup was doing 80 and it was about 3k. Which really isn't that far off from what I was running before. 50 mph I was at 2k and now I'm at 2200 not that
Bad of a difference, but as for as torque and power you can definitely feel the difference
Bad of a difference, but as for as torque and power you can definitely feel the difference