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Old 12-25-2013, 12:55 PM   #1
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Detroit TruTrac

Merry Christmas everyone! As one of my presents my parents gave me money to go towards a LSD in my rear axle! Just wanted to see where yall order yalls LSD (Detroit truetrac is the one I'm looking at), how much yall paid for the LSD and average cost of install! Thanks!

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Old 12-25-2013, 01:36 PM   #2
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I am planning on getting one, and so far the best deal seemed to have been at summit racing. As for install, I'm fortunate to have a couple of master techs in my Jeeping posse, so we're doing it (and the lift) ourselves.

Good luck with the purchase... two of the crew added them, and have been impressed with the results!

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Old 12-25-2013, 02:11 PM   #3
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Be advised that will require new ring gear for the rear, because the TT is 3/8th and the d44 thick ring is 7/16ths.

You might as well consider higher ratio now, no point paying twice.
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Old 12-25-2013, 02:17 PM   #4
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I have 4.10s right now and 33s and don't plan on going to 35s so I'll just get the LSD
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Old 12-25-2013, 02:45 PM   #5
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I think mine was around $500.

Labor was free as I had it done same time as regear.
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Old 12-25-2013, 05:47 PM   #6
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Quote:
Originally Posted by wimcle View Post
Be advised that will require new ring gear for the rear, because the TT is 3/8th and the d44 thick ring is 7/16ths.

You might as well consider higher ratio now, no point paying twice.
No new RP needed. I've heard new TT's come with 1/2" carrier holes. If not it's no big deal having them drilled. I had my first real test of my front/rear TT's recently driving over the continental divide in Wyoming. It was almost a white out and 50+ cross winds and black ice AT NIGHT.

I watched several cars skidding off the road in front of me and noticed I was on black ice going down hill at 60mph. It was a hair raising experience. After that I had plenty of shifting back and forth from 2h and 4h. Lots of snow/swirling snow. Even the semi's got off the highway. Although I was only going 25 mph most of the time traction was excellent. One TT in back made a difference but using both worked great. I never felt out of control, and Traction Control never came on once.

I highly recommend getting a TT, but stay away from the mountain pass over the continental divide through Wyoming at night in a snow storm
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Old 12-26-2013, 04:05 AM   #7
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Trutrac was the first thing I did when I got my 2012 Jeep, it had 160 miles on it and was at the 4 wheeler shop having the front and rear diff changed to Eaton trutracs. By far the best thing I ever did. My trutrac carriers had to be drilled out from 7/16 to 1/2 and it takes a special shop that will even try it because they are hardened.
I have gotten in Many arguments on this forum on just how the Trutrac work. Where we off road we need to keep our speed up while still being able to steer threw the steep hill in the tight wooded trails. My jeep with Trutrac is a beast and just keeps going and going. You will love your trutrac
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Old 12-26-2013, 09:54 AM   #8
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Just got a quote from 4WP in Houston for 1150$. That's for the TruTrac, new bushings, seals, bearings, and install. Is that a good deal? Seems a little high
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Old 12-26-2013, 11:34 AM   #9
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I paid $389 for the Detroit TrueTrac through Summit racing, install was about $500 but included new Timkin bearings, shims, synthetic diff fluid and prefessional install with warranty. backlash, shims, etc were spot on.Took about 4 hours.

So yeah,$1150 after tax is reasonable. I would reccomend Timken bearings even if it costs another $50.

If you want a second install quote hit up local semi tractor trailer axle shop.
They really know axles and a D44 is a cake walk for ther heavy equipment.
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Old 12-26-2013, 03:09 PM   #10
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$1150 sounds high for the rear but within reason I guess. The Front would cost more. I bought mine through Summit. My rear install was $200 using my bearings. My front install was $500 using my bearings. Looking back I should have had new bearings but the shops doing the work ( two different ones ) said they were good and advised reusing them. They had low miles btw.

According to Eaton you shouldn't use synthetic gear lube. You might not have an issue but the bias ratio will be lower with synthetic ( not enough friction ) I'm using Castrol 85-140. Choose what you like, but I'd stay conventional and change every 30,000 or sooner.

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