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Nice! Tell us more about your rig. I don't think we have very many Yukon XLs in the GMT800 Suburban Mafia. That looks like, what a 6" lift on 35's? Did you do the T-bar drop and go with new Upper control arms?
Martinjmpr said:Nice! Tell us more about your rig. I don't think we have very many Yukon XLs in the GMT800 Suburban Mafia. That looks like, what a 6" lift on 35's? Did you do the T-bar drop and go with new Upper control arms?
NP241 swap with a SYE - the entire 4x4 system is now all mechanical
Need to do a build thread but here are some pertinent's:
2003 Yukon XL 2500 8.1L - current mileage 154,476 (just finished a 4,700 mile road trip)
Front Suspension:
Cognito 4-6
Fox 2.0 Remote Res Coilovers 6.5" travel with 700lb springs (a bit too light, gonna try 800lb next)
Kryptonite UCA
Kryptonite center link, tie rods, with custom spec Evolution Machine rebuildable tie rod ends
Custom mounted Light Racing Jounceshocks
Custom length 4340 half shafts set the tripod joint further in the cup for extra strength
Rear Suspension:
Custom spec Deaver leafs (sagging a bit too much and needs a little boost)
Fox 2.0 Remote Res shocks 8.5" travel - cut off stock shock mounts and welded on high clearance ones
Custom mounted Light Racing Jounceshocks
Drivetrain Mods:
Fleece Performance stub shafts for the front diff - eliminates the axle disconnect
NP241 swap with a SYE - the entire 4x4 system is now all mechanical
4:56 gears
Rear Truetrac
Tried to stuff a Truetrac in the front from a 9.5" 14 bolt but it would not clear the aluminum case, decided to leave it open rather than ARB it
Front and rear High Angle 1350 CV Driveshafts
Other:
Dual battery with secondary 12v system, uses a Blue Sea mlACR
100 watt solar panel where the sunroof would be
Bushwacker cutout fender flares from a similar year pickup
Front and rear bumpers built by me
Chassis Unlimited universal rock sliders
Have a few tweaks to make but over all not a whole lot is gonna change. And yeah, I was way over budget. :Wow1:
Tell me more about this - where did you put the T-case lever? Did you cut into the center console or did your truck have the bench seat in front?
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Any problems with the on board computer when you removed the electric 4wd system?
That thing is so sweet! Was going to SAS my newly acquired 2wd Avalanche, but I am pretty sure that I will now be doing coilovers instead. Wish it was a 2500, but it'll be cool none-the-less. Thanks for posting in such detail.
Brad
.My truck (and 99% of Suburbans it seems) has the center console so I trimmed it to fit the shifter. I did have to cut, bend, weld a Z-shape into the shift lever to move the knob over otherwise it would rub on the center console. Didn't have any issues with the electrics, once you unplug the transfer case module under the dash it doesn't throw any lights. Then you just have to splice the speedo sensor from the new transfer case into the factory wiring (purple/green wires). I also had to ground out a pin on the transfer case module connector in 4-low (I welded a momentary switch to the shift mechanism itself) otherwise it wouldn't shift out of 1st gear in 4-low. Everything works great, with no front axle disconnect as soon as I pull back the shifter, I know 100% it is in 4 wheel drive. Some electronics I trust, but not these transfer case motors. Maybe newer models are better. Before I did the swap I would have intermittent problems where it would throw the Service 4WD message and wouldn't shift out of 2WD. Maybe it was just a switch or something simple but I wanted it all gone anyways for the peace of mind.
My truck (and 99% of Suburbans it seems) has the center console so I trimmed it to fit the shifter. I did have to cut, bend, weld a Z-shape into the shift lever to move the knob over otherwise it would rub on the center console. Didn't have any issues with the electrics, once you unplug the transfer case module under the dash it doesn't throw any lights. Then you just have to splice the speedo sensor from the new transfer case into the factory wiring (purple/green wires). I also had to ground out a pin on the transfer case module connector in 4-low (I welded a momentary switch to the shift mechanism itself) otherwise it wouldn't shift out of 1st gear in 4-low. Everything works great, with no front axle disconnect as soon as I pull back the shifter, I know 100% it is in 4 wheel drive. Some electronics I trust, but not these transfer case motors. Maybe newer models are better. Before I did the swap I would have intermittent problems where it would throw the Service 4WD message and wouldn't shift out of 2WD. Maybe it was just a switch or something simple but I wanted it all gone anyways for the peace of mind.
View attachment 426121
Your Yukon is exactly what I want to build next! If you ever decide to sell let me know!
Got any more details on the electric switch for your 4lo actuator? Myself and a few friends with solid axle swapped GMT 400s have been trying to figure out how to do just that, we've all grounded the pin to a toggle switch but I would love having one less step to do.