3.23 - I'm stuck with only one Differential ! (All)
Description
This article is from the Toyota Tundra FAQ, by Steve Yee with numerous contributions by others.
3.23 - I'm stuck with only one Differential ! (All)
People have reported some disappointment with the stock differential in the
Tundra. There are two available differential upgrades and one upcoming upgrade
for the Tundra. The two available differential upgrades are from PowerTrax and
from Toyota Racing Development's Kazuma part division. ARB has mentioned that
they will release an AirLocker for the Tundra, but it is not available yet.
PowerTrax will be making two versions that will work in the Tundra, one of
which is available now: An automatic locker addon called the PowerTrax No-Slip,
(it's predecessor is called the Lock-Right), and there is a proposed future
unit called the AllLock. The AllLock version is not shipping at this time.
PowerTrax can be found at www.powertrax.com. The only version that can be
installed on the Tundra is the PowerTrax No-Slip.
TRD demonstrated a limited-slip differential at the 2000 SEMA show and is now
available from TRD. You can see the SEMA show information at
http://www.pickuptruck.com/html/autoshows/sema200/toyota/customized/tundrasc.ht
ml .
The cost for this differential from TRD is $700. It is a true limited-slip
differential with clutch type discs to provide power to both wheels. See
section 1.7 for the description of the differential. The new differential has
been said to include new pinions as well.
As of July 2001, it has been reported by Tundra owners that ARB will be
releasing a variant of the ARB AirLocker for use in the Tundra. It will have a
part number of RD89, and the price is unknown at this time.
Here's a short comparison between the PowerTrax No-Slip, the TRD Limited-Slip
Differential (LSD), and the ARB AirLocker:
PowerTrax Pros:
No clutches to wear out
Can be installed by the owner
Has been proven off-road
PowerTrax Cons:
Bad for snow conditions
Cannot turn it off and on like a true locking differential
Is not covered by any warranty other than PowerTrax's
Forces the driver to learn new driving styles due to the locking differential
TRD LSD Pros:
Can be installed by a dealer
Is covered by TRD's warranty and is also covered by the vehicle warranty if
installed by a dealer.
Is more of a True Limited-Slip Differential
Does not require the owner to relearn driving techniques
TRD LSD Cons:
Long Installation time - 7 hours of labor is being quoted by Dealers
Doubtful that it can be installed by the owner
No replacement clutches or pads as of yet
Clutches and pads wear out after time and must be replaced.
ARB Pros:
No clutches to wear out
Can be installed by the owner
Has an excellent track record off-road
Can be turned on and off at will
Driver does not have to learn a new driving style, unlike the PowerTrax locker
ARB Cons:
Is not covered by the manufacturer's warranty
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