I am due as well. My transmission shop recomends http://www.gopnh.com/Automotive-Manufac ... te%20Model).
Anyone hear any good bad as far as our crd's go?

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2006 Jeep Liberty CRD 80,000 miles and counting

Mods- EHM, In tank Cummins lift pump, Red Samco Hoses, Cleaned MAP senso, and changed oil with full synthetic

When it comes to upgrading your torque converter, there are a few points of interest.

1. The lock-up clutch is the weak link. Stock TC has a spring capaicty of 300 ft*lb nominal. Make sure the new unit is designed for 400 ft*lb minimum. TC shudder occurs when the springs bottom out of their travel leading to a slip/stick of the internal clutch.

2. A larger surface area of clutch material in contact with metal will aid in holding if the springs near/hit full travel.

3. A billet cover typically means higher inertia (need to know added mass over stock). This will reduce engine response a bit, but will reduce overall noise, vibration and harshness (NVH) in vehicle. The added mass can lead to variations in the idle speed governor (undershoots/overshoots) as the low idle governors were designed for the stock inertia.

4. Low Stall- created by changes to the turbine blade angle most often. There are many variables that affect the optimum stall speed including power/torque output curve and turbo response rate. A low stall unit can help with fuel economy by reducing engine rpm for a given load. If not matched correctly for the power curve it will hinder overall performance.

If your vendor of choice has a good answer on these points, their TC will mostl likely work well for you.

The Liberty CRD is a good sized market for aftermarket TCs due to the very poor quality unit from the factory. It is feasible for 40% of the fleet to fail the stock TC during useful life.

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Providers of wholly developed aftermarket solutions for the KJ CRD.
(248) 977 - 9531

I called Precision of Hamton, http://www.gopnh.com/, and the tech guy said they beef up the springs, however did not know what the springs specifications are. He thought the specifications were very close to stock. He also said the surface area is the same.

So it looks like I will be looking at either Suncoast.

Thanks for your help Keith!

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2006 Jeep Liberty CRD 80,000 miles and counting

Mods- EHM, In tank Cummins lift pump, Red Samco Hoses, Cleaned MAP senso, and changed oil with full synthetic

I have the Suncoast and GDE Turbo tune in my 05 with about 35k on them and have pulled over 5k that combo and no problems so far

and when not pulling I have gotten 33 mpg hwy calculated from speedo , not computer when I am getting that cumputer shows over 35mpg

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05 liberty CRD Limited - suncoast TC , GDE Turbo , GDE TCM Tune 2gen OEM filter head, stant 195 tsat, Autoandart Window Fix, New TB kit ~190k (Geordi)
06 Liberty CRD Limited - stant 195 tstat Autoandart Window Fix, 2gen OEM filter head, New TB kit ~180k (Geordi), GDE Turbo, GDE TCM ECO tune

Awesome!

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2006 Jeep Liberty CRD 80,000 miles and counting

Mods- EHM, In tank Cummins lift pump, Red Samco Hoses, Cleaned MAP senso, and changed oil with full synthetic