Recent content by GMC 08

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    Grid Heater Not working

    Good to know about power service! I'll try n get a video today of starting it.
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    Grid Heater Not working

    It never started hard until I disabled the grid heater. Once the tune is fixed I'll try both ways and see if it makes a difference ( grid heater plugged in and not plugged in) I always use power service diesel additive in the winter. Batteries were replaced last year (OEM batteries). i still...
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    Grid Heater Not working

    I installed a Sinister EGR delete kit and had my Tuner disable the CELs for the Intake heater. This was back in spring. It’s cold here now (Minnesota) truck starts hard, plus I did not like the Sinister intake tube so I put the stock intake tube back on. Guessing my tuner disabled the grid...
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    Grid Heater Not working

    Did a search and could not find the answer. Can EFI live disable the Intake Heater Grid or does it just block the CEL? My heater grid is not working and want to make sure it is not tuning related before looking into it. Thanks!
    • GMC 08
    • Thread
    • Replies: 15
    • Forum: LMM
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    Raptor lift pump motor

    My Air Dog just started making noise last week. Took it apart and it was just a bad bearing. Replaced the bearing and all is good again. Cost me 20 bucks for the bearings. Might be worth looking into. Mine is about 5 years old maybe 60,000 miles?!? Just an FYI when you take it apart mark the...
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    33x12.50x20 with 4.56 gears 6 speed?

    I just regeared 3.73 to 4.30 I made my own calculator and it was very close. 33" Tires with 4.56 gears @80 you would be at 2366 RPMS 33" Tires with 4.10 gears @80 you would be at 2127 RPMS 33" Tires with 3.73 gears @80 you would be at 1935 RPMS Stock with 265-70r17 (31.6") @80 would be...
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    11.5 AAM Carrier Beraing Preload

    Thanks a bunch! Is the front differential suppose to have 2 spacers? Mine only had one. See attached picture. This link I found shows two. Item 15 http://www.demandaam.com/resources/pdf/file-20150130102021.pdf
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    11.5 AAM Carrier Beraing Preload

    FC8464 You have Specs for the Front axle? In the process of doing that one right now. Got the rear end all done. Thanks!
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    LBZ: Re-Gearing

    With a 5 speed I would do 4.10. With a 6 speed 4:30 with 35s I got some Yukon 4:10s for sale if interested.
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    11.5 AAM Carrier Beraing Preload

    I checked the rotational torque of the pinion and differential assembly this morning, I'm at 30 in-lbs. Looks like I need to tighten the preload on the differential a little bit. Thanks for the info!!
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    11.5 AAM Carrier Beraing Preload

    I just installed 4.30 gears in my truck. What are you guys setting you carrier bearing preload too? I got the gears from Just differentials and they are telling me the adjusting nuts are just for setting backlash and there is no spec for the carrier bearing preload. Which I know is wrong. I...
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    Bad Injectors??

    My truck is currently parked. I don’t drive it in the winter anymore. I’m in the process of regearing it. After that I’m completely deleting the EGR (currently just have a blocker plate). So hopefully in the next month or so I can throw the stock tune back in and recheck the balance rates.
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    Clamshell Puller ???

    My buddy has a bearing separator. We are gonna try it this week. I have a 12 ton press. We'll see how it goes. Worse case I'll buy the eBay puller and resell it when I'm done. I was worried the eBay puller would be complete junk and not work.
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    Clamshell Puller ???

    I was hoping to reuse the bearings as setup bearings....at least the ones on the pinion. Not to concerned about the ones on the center section. I could cut those off.
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    Clamshell Puller ???

    Anyone know if these are any good?? http://www.ebay.com/itm/Differential-Carrier-Pinion-Bearing-Puller-Clamshell-style-set-/152262942963?hash=item23739420f3:g:4eEAAOSwzaJX8Ghw&vxp=mtr
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