Detroit Tru Trac in 2011+ - Hemi Truck Club
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Old 03-29-2014, 07:35 AM   #1
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Detroit Tru Trac in 2011+

This thread is to clear up some confusion and also to inform everyone on the gear/lsd options for 2011+ Rear Axles.

I just had a DTT and 4.10's installed in my 2012 Ram.
It was quite costly.... Roughly 1500.00
This is only for those that want to go all out race or serious 4x4'n

Here is what is needed:
1. 9.25 Ring and Pinion. Any ratio size you want, 4.10, 4.56 etc.
2. 9.25 Detroit Tru Trac. Install as normal.
3. 2011+ Ram (Drivers Side) ZF Axle Shaft (Longer Side)
4. Master Install Kit

The reason a long side shaft is need is because the OEM ZF LSD is offset while the 9.25 DTT or 9.25 LSD is not.

For those with 2011+ that just want to have 4.10 or 4.56 gears and already have a Factory LSD, all that is needed is to machine the OEM carrier for the older 9.25 bolt pattern and recess the holes.

Those that do not have an OEM LSD would obviously need to purchase one.

Modern Performance Engineering
Had 2002 4.7 RCSB 14.2
Had 2011 RCSB 12.41
Had 2012 RCSB 13.99
Had 2016 QCSB 13.0
2011 Drag Truck....

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Old 03-29-2014, 10:14 AM   #2
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good info
"CMR TUNER" [email protected] 1/4 with a 7.32 1/8 custom long/short bars by "Me" Turbocharged 392 on 9psi S475/96/1.32 . Running thru an A518! [email protected]
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Old 03-29-2014, 09:53 PM   #3
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