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In
powered axles, gears that deliver power from the drive shaft to the left
and right axle half - shafts separately
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Allow
the left and right wheels to turn at different road speeds when turning,
so that neither wheel has to scuff |
Differentials and Traction Control |
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Conventional "open" differentials tend to equalize the power delivered
through both wheels. Thus if one wheel loses traction - "spins out" on
snow, mud, sand, or gravel - it delivers very little power to the
ground. The other wheel will deliver only the same very little power.
Often this is not enough to keep the vehicle moving on - it's stuck.
Traction control differentials allow the wheel with traction to deliver
more power than the wheel without traction. Often this is enough to keep
the vehicle moving. There are two types of traction control
differentials: |
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Locking |
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Limited Slip |
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Each
type has advantages for specific types of vehicles and driving
conditions. |
Differentials - Locking / LSD Type |
Detroit Electrac™ |
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Tractech's helical gear
premium limited slip differential has been given an added feature. It
will be available for selected axles with a lock / unlock feature. So,
it will be a top quality limited slip design anytime, and when you are
off road and need full lock-up to get where you are going, just flip the
switch on the dash!
Download the
Aftermarket
Detroit Electrac Brochure
PDF File (607KB)
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Differentials- Locking Type (Speed-Sensitive) |
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Tractech’s locking differentials are the NoSPIN®
and Detroit Locker® brands
(same product, different market segments), the Detroit E-Z
Locker™ and Detroit
Gearless Locker™ brands.
They keep the wheels locked together (except when turning) so that
together the left and right wheels, always deliver maximum traction to
the ground; neither wheel can spin out.
They
allow different wheel speeds in a turn by disconnecting the faster -
moving wheel (usually the outside wheel - driven faster throughout the
turn), driving the vehicle with the other (inside) wheel. |
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NoSPIN® / Detroit Locker®
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The most
rugged positive locking differential, and most widely available for
axles from 3,000 to 70,000 lb. capacity. |
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For severe
operational conditions. |
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Driver may
hear and feel "backlash" going from drive-to-coast and coast-to-drive,
as reversing torque flow resets the components. |
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Download OE
No-Spin Brochure
PDF File (1,662KB) |
Download Aftermarket
Detroit Locker Brochure
PDF File (737KB) |
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For the
occasional off-roader. |
Download
Aftermarket
Detroit EZ Locker Brochure
PDF File (637KB)
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Easily
installed by the mechanically inclined. |
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Fewer parts;
re-uses many conventional differential parts. |
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Dana
30, Dana 44, and AMC 20 axles. |
Download
Aftermarket
Detroit Gearless Locker Brochure PDF File (493KB) |
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Smoother, quieter - no gear teeth. |
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Easily installed |
Differentials - Limited Slip Type (Torque - Sensitive) |
Tractech’s limited slip differentials are the Detroit
Truetrac® brand, and the
Suretrac® and the
Detroit LSD™ brands (same
product, different market segments). They provide a controlled amount of
resistance to a one-wheel spinout, so that the other wheel (with
traction) receives sufficient power to keep the vehicle moving.
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Uses
pairs of "Helical" gear sets |
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Gears only - no clutch packs. |
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Ideal for 4WD front axles or
rear axles, as well as 2WD; light trucks, SUV’s, cars. |
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Rugged yet smooth and quiet. |
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Torque bias ratios of 2.5 to
3.5:1 range. |
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Download OE
Detroit Truetrac Brochure
PDF File (1,040KB) |
Download Aftermarket
Detroit Truetrac Brochure
PDF File (522KB) |
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Heavy duty clutch pack type,
for severe applications where limited slip type smoothness is preferred. |
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For larger (over 10,000 lb.
capacity) axles. |
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Two types, offering
torque bias ratios of 2.5 to 4.0:1 or 1.5 to 3.0:1 ranges. |
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Download OE
Suretrac Brochure
PDF File (1,363KB)
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