Chevrolet Suburban 3500 Questions

[Geotrash]

Well actually it's roll stiffness that keeps the truck controllable. And you can do roll stiffness other ways as well. I used to do a bunch of autocross when I was younger and there's always a debate in suspension tuning about whether you go with sway bars - or with increased spring stiffness. Each has their own drawbacks and advantages. After driving the truck this way - and I have driven it on the highway - and it seems fine .. I wonder if it might be better to maybe add some more roll stiffness into it with stiffer torsion bars and maybe the addition of some of those Timken load things. (forget what they're called). For the time being it's an interesting experiment.

You could always try the torsion bars and leaf springs from the Suburban 3500.

One truism I’ve found over the years is that manufacturers are never going to waste money on parts that an engineer could reasonably argue they don’t need. If GM could’ve achieved the ride and handling goals they were targeting with simply stiffening the springs, they would have. My bet is that they know something about the handling of these in certain circumstances, that we don’t, that caused them to spend the additional money to add the sway bar.

 

[Geotrash]

For those not following my build thread, I learned from another 3500 owner what the correct hitch is for these if you want to go to a Class V:

Xtra Duty Class 5 Hitch, 2" Receiver, Select Escalade, Suburban, Tahoe, Yukon

Hauling heavy-duty equipment to that next big job? Towing your yacht out to the lake for another weekend on the water? Bringing some livestock home to the farm from the county auction? Whatever towing hurdle you need to overcome, make it look easy with CURT. CURT Xtra Duty class 5 trailer...

www.curtmfg.com

Picked up one from a local guy on FB today. He had a Suburban 3500 but sold it a couple of years ago. $100, delivered to the Wawa close to my house this afternoon. Heckuva deal.

It’s a bolt in replacement for the factory Class IV hitch but as you can see, it lacks the holes for the electrical socket and the spare tire hoist.

 

[Slatinaa]

Hello All, recently purchased 16 Suburban 3500 LS. It was a homeland security vehicle. Wire under radio dash is cut. Everything works as it should except the USBs below radio and in the jump seat.

Does anyone have a photo of what this is to look like or know what this goes to?

I have searched this forum and the web but can not find dash and consul or jump seat wiring diagram.

Please help. Thank you all.

 

[Bigburb3500]

Welcome! To one small little obscure corner of the internet where we now have a whopping 3 members part of the 3500 owners group! I will be able to check this later this evening and post a picture. Where under the dash is this?

Hello All, recently purchased 16 Suburban 3500 LS. It was a homeland security vehicle. Wire under radio dash is cut. Everything works as it should except the USBs below radio and in the jump seat.

Does anyone have a photo of what this is to look like or know what this goes to?

I have searched this forum and the web but can not find dash and consul or jump seat wiring diagram.

Please help. Thank you all.

 

[Geotrash]

Hello All, recently purchased 16 Suburban 3500 LS. It was a homeland security vehicle. Wire under radio dash is cut. Everything works as it should except the USBs below radio and in the jump seat.

Does anyone have a photo of what this is to look like or know what this goes to?

I have searched this forum and the web but can not find dash and consul or jump seat wiring diagram.

Please help. Thank you all.

Welcome to the family! Looks awesome! I have an alldatadiy subscription for mine (highly recommended) and there are complete wiring diagrams there. I don't have any photos of that area in mine because I haven't removed those pieces. Might also want to check the GM up-fitters manual.

Anyway, here's the schematic for the 2018 Suburban 3500.

 

[Slatinaa]

Hello All, recently purchased 16 Suburban 3500 LS. It was a homeland security vehicle. Wire under radio dash is cut. Everything works as it should except the USBs below radio and in the jump seat.

Does anyone have a photo of what this is to look like or know what this goes to?

I have searched this forum and the web but can not find dash and consul or jump seat wiring diagram.

Please help. Thank you all.

Welcome! To one small little obscure corner of the internet where we now have a whopping 3 members part of the 3500 owners group! I will be able to check this later this evening and post a picture. Where under the dash is this?

Hello Bigburb3500, appreciate your help with this. Thanks for the welcome.

Its located right under the center left. Under the drivers temp control knob close to floor.
See attached photo with red arrow.

 

[Bigburb3500]

Ok, I might not be able to check tonight as I have a full center console, and I may have to open a panel to see this area.

 

[Slatinaa]

Welcome to the family! Looks awesome! I have an alldatadiy subscription for mine (highly recommended) and there are complete wiring diagrams there. I don't have any photos of that area in mine because I haven't removed those pieces. Might also want to check the GM up-fitters manual.

Anyway, here's the schematic for the 2018 Suburban 3500.

View attachment 452718

Thank you

Welcome to the family! Looks awesome! I have an alldatadiy subscription for mine (highly recommended) and there are complete wiring diagrams there. I don't have any photos of that area in mine because I haven't removed those pieces. Might also want to check the GM up-fitters manual.

Anyway, here's the schematic for the 2018 Suburban 3500.

View attachment 452718

Thank you Geotrash!
The Jump Seats wiring that I have needs to go to under the center console where the wires are cut. Need to figure out wiring from my Jump seat plug/connector to the cut wire that probably had a plug/connector.

Attached photos of cut wires below center console and jump seat harness that probably needs to go to front where wires are cut.

 

[Geotrash]

Thank you

Thank you Geotrash!
The Jump Seats wiring that I have needs to go to under the center console where the wires are cut. Need to figure out wiring from my Jump seat plug/connector to the cut wire that probably had a plug/connector.

Attached photos of cut wires below center console and jump seat harness that probably needs to go to front where wires are cut.

Next step will be to unwind some of that electrical tape and sheathing around the cut wires so you can get a good look at the wire colors. Compare those to the schematic I posted and you can probably start piecing things back together.

 

[Geotrash]

Also, note that this looks like a mini usb connector. My guess is it originally went to the USB outlet at the back of the center console.