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  1. Dantheman-2003

    Will a 2015 Front Differential fit in a 2009 Model?

    09- GMC Sierra 1500. Need a new front diff 3.42. I found one local out of a 2015 Silverado 3.42. Looks exactly the same, but I have read that GM changed the frame on the 2015's and about so maybe it won't bolt up correctly. Can anyone confirm? Thanks, Dan
  2. Dantheman-2003

    Auto Trak II OR Dexeron Vi??

    2009 GMC Sierra 1500 Z71. 115,000 miles . Getting ready to change the oil on my T-case. It has the 4wd auto. Some say it takes the Auto Trak II. Others say Dexeron Vi including the dealer. What say you? Thanks, Dan
  3. Dantheman-2003

    Looking For Used Front Diff 09 GMC Sierra 1500

    Anyone have a used front laying around for an 09 Sierra 1500? GU6 with 3.42 gears. Or anyone know the best place to get one? Thanks, Dan
  4. Dantheman-2003

    Front Differential Purchase Used

    Anyone have success buying a used front diff GU6 off of Car Parts Direct or EBay? I found this one for an Escalade. I assume a GU6 is the same 3.43 for Silverado, Tahoe or Sierra? In other words interchangeable. Situation: 2009 GMC Sierra 1500. Pulled front diff and after inspection learning...
  5. Dantheman-2003

    2008 GMC Sierra 1500 Denali Crew Cab AWD- QUESTION

    So I am looking at acquiring a new rig. Specifically looking at a 2008 GMC Sierra 1500 Denali Crew Cab AWD. This truck comes with the 6.2 engine. Anyone have any thoughts on this compared to the an 08-09 Sierra SLT 4wd? I know it all depends on what my plans are for it, but specifically...
  6. Dantheman-2003

    Po305 Misfire Cylinder 5

    2008 GMC Sierra 1500, 5.3 Vortec. On the clock about 180k miles. Started running a little rough then check engine light comes on. Run the scanner, po305 misfire cylinder 5. I pulled the plug and it looked ok. Replaced it with a different one, no change. Moved some wires around, no change...
  7. Dantheman-2003

    03 Tahoe- Rear Differential Fluid Change: Questions

    So I just re-geared my 03 Tahoe from 3:73 to 4:56. After 500 miles I changed my fluids. The front diff took about 1.5 quarts, which it called for 2. But I filled it as much as it would take. The rear calls for 2.75 quarts, but I ended up putting all 3 quarts in. Stuck my pinking in there...
  8. Dantheman-2003

    03 Tahoe Code P0116- FIXED

    So I just finished my electric fan conversion on the Tahoe. Installed the Blackbear performance tune. Everything seems to work fine, except when I went for a test drive the temp gage dropped to zero. E fans working fine, gage temp initially went up to about 200. During test drive dropped to...
  9. Dantheman-2003

    E-Fan Wire, Solder or Connectors?

    Getting ready to install e-fans. The OEM wiring harness came out of my 05 Yukon. I cut it out cause I was in a hurry so I need to add some lengths of wire. The splices I’ve tied together and soldered instead of using splice connectors. Anyone see concern or issues with this method? Thanks, Dan
  10. Dantheman-2003

    E-Fan Wire Size

    Getting close to installing my E-fans on the Tahoe. I pulled the fans out of my 05 Yukon harness and all. I’ll need to add some wire runs, as I basically cut out the harness. So question is, what are the wire sizes for the e-fans and ECU? I’m goin to guess e-fans are 16G, but hopefully someone...
  11. Dantheman-2003

    03 Tahoe Front CV Axle Bolt?

    Just I’m going back and Torquing down my front end post 6” lift kit. I’m tightening the front CV axle 15mm bolts and sure enough, one snapped. Now I’m looking for a replacement, can’t find them anywhere. Anyone got a line on these or at least know the thread size/pattern?
  12. Dantheman-2003

    03 Tahoe Power Amp Running Boards

    Anyone have a line on amp powered running boards for 2003 Tahoe? Anyone install them successfully? Thanks
  13. Dantheman-2003

    Skyjacker C25R… Air Bag?

    Installing new Skyjackers c25r. Wondering if anyone installed air bags with these for towing? I looked online but saw very few options. Any thoughts?
  14. Dantheman-2003

    4:56…. Or … 4:88? That’s the Question

    So the build is coming along nicely. Lots of hard honest work and lessons learned along the way. Exactly what I’d hoped for when I took this 4x4 project on. Thanks to this forum and other resources, I’ve had allot of support along the way. That said, I’m to the crossroads of re-gearing the rear...
  15. Dantheman-2003

    Post 6” Lift- Bump Stops Riding on Lower A-Arm

    So another issue I’m having, after the 6” Lift, my bump stops are riding on the lower A-arm. See pics. So I’m thinking I’ll crank up the keys a little bit, which gave me clearance. Took it around the block and right back to where I started, bump stops are back resting on the arm. Any thoughts...
  16. Dantheman-2003

    Rear Suspension Lift Question....

    So I completed my 6" lift, 03 Tahoe. Overall happy with the outcome. I would not buy another RC kit. I feel like they cheaped out on the bolts washers etc. It's a low-end kit, I get it. I'm on a budget so just wanted to try it for the project experience. Again, overall I'm happy with it...
  17. Dantheman-2003

    Upper Control Arm Recommendations

    Any suggestions on UCA’s for a 6” RC lift kit? I have aftermarket tubular ones on there now but I think they are only rated for 2”-4” kits. Will going up 6” require new UCA’s? Thanks..
  18. Dantheman-2003

    CV Axle Question

    Doing some upgrades to my 03 Tahoe. 6” RC lift. I ordered new CV axles for a 2008 Tahoe based off some member recommendations. Question 1 is, do I used the CV axle spacers that came with the RC lift kit? I’ve heard some say yes and some say no. Question 2, I’m looking for more of a squatted...
  19. Dantheman-2003

    Clutch Fan Question

    So I installed a new clutch fan on my 03 Tahoe. Will eventually do electric conversion but for now I went with a new clutch from Autozone. Duralast I think. Gosh dang thing howls like crazy. So loud it drowns out the exhaust. I know it’s doing what it’s supposed to do but sheesh. Any suggestions?
  20. Dantheman-2003

    Front End Rebuild Recommendations

    Getting ready to lift my 03 Tahoe. Going with a 6” RC lift. Figure might as well rebuild the front end while I’m at it. Looking for recommendations on brand parts, I.e. TRQ, Detroit, Moog, etc. I’m trying to stay within budget also So suggestions for the following new parts: 1. CV axle 2. Tie...
  21. Dantheman-2003

    Squeaks and Creeks after Leveling Kit…

    So I installed a leveling kit on my 03 Tahoe. New keys, shocks, upper control arms and tie rods. I’m overall happy with it until I go bigger. One thing that bugs me though is the squeaking from underneath. Sounds like an old spring bed mattress. Creek creek… squeak squeak… increases when I go...
  22. Dantheman-2003

    Question on Trans Oil Fill- 03 Tahoe

    I recently did a transmission flush, new filter etc. Took me a few top offs of fluid to get it back to the right level. In doing so, I think I added 1/2 quart too much. Here’s a picture of the dipstick. My thumb is the end point of the fluid when the engine is warm and running idle. In other...
  23. Dantheman-2003

    2008 GMC Sierra- Check Engine Light and Observations

    2008 GMC Sierra 1500 Engine 5.3 Mileage 185k This has been a great truck with minimal issues. I recently changed fluids, and installed new spark plugs and wires. It’s been running great. Today I drove to work and parked. When I got in to leave, the check engine light came on solid and idle was...
  24. Dantheman-2003

    03 Tahoe AC Question

    So I just serviced my AC. Needed a new relay switch for the compressor and a few pumps from the can. Blows cold. Only issue is, when I press the snowflake, no cold. But then I hit the recirculate and the snowflake disappears, and blows cold. I took a picture. Seems when the snowflake appears...
  25. Dantheman-2003

    2003 Tahoe Service Ride Monitor

    I installed larger tires and now I have the code on my dash. I do have the autoride feature so maybe that’s the issue. I tried putting it in program mode to relearn the TPMS sensors, but it won’t go into program mode. I followed the sequence on turning the headlights on and off 4 times but my...

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