Chevrolet Suburban 3500 Questions

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Geotrash

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@Geotrash, since you will be joining the exclusive club of 3500 ownership. I would like to let you know that as a parts bin special it does come with two terrible Chevy traits: no wireless CarPlay/Android auto and headlights that can be outclassed by a matchstick (unlit). Never discussed this here yet, but bought a wireless adapter to plug into the secret cubby off Temu for $25 (identical to the one on Amazon for $60) and also a set of LED bulbs for $8 that make night driving actually feasible. Would love to get Morimoto lights but not in budget right now.
Thank you, kindly! If you happen to have any links, I'd be grateful. Can't wait to get that big beast home! We have a camping trip planned for Thursday night through the weekend, and I'd love to be able to take it.
 
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Bigburb3500

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Thank you, kindly! If you happen to have any links, I'd be grateful. Can't wait to get that big beast home! We have a camping trip planned for Thursday night through the weekend, and I'd love to be able to take it.
You will need the H11 connector if memory serves correct. But if you haven’t used Temu - it’s great. It’s like discount Amazon. Just double check stuff as sometimes it’s a bit wonky. I have gotten some good deals on things tho - CarPlay is one of them. I think these links should work.


I can’t wait to hear how it tows! How much does your current trailer weigh?
 

Geotrash

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You will need the H11 connector if memory serves correct. But if you haven’t used Temu - it’s great. It’s like discount Amazon. Just double check stuff as sometimes it’s a bit wonky. I have gotten some good deals on things tho - CarPlay is one of them. I think these links should work.


I can’t wait to hear how it tows! How much does your current trailer weigh?
Thank you!

Our current trailer weighs 7500 lbs, but we plan to get one that weighs closer to 9K in a few years.
 
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Geotrash

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You will need the H11 connector if memory serves correct. But if you haven’t used Temu - it’s great. It’s like discount Amazon. Just double check stuff as sometimes it’s a bit wonky. I have gotten some good deals on things tho - CarPlay is one of them. I think these links should work.


I can’t wait to hear how it tows! How much does your current trailer weigh?
Drove it 3.5 hours home tonight and it’s comfortable for long drives, just like our GMT900s are. We love it! Had to pick up our daughter from volleyball practice tonight at the high school, and my wife and I rolled up in front looking like CIA. The windows have a super dark tint.

The guy we bought it from was a fanatic. He kept it in a climate controlled garage and it’s indistinguishable from new. Truly. It even smells new. It’s never been driven in snow. I’m over the moon and feeling super lucky.

You can tell it’s a 3500 on rough roads but it’s smooth as can be on the highway. I’ll install the trailer brake controller tomorrow and go pick up the camper.

IMG_0371.jpeg

IMG_0367.jpeg
 
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Bigburb3500

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Drove it 3.5 hours home tonight and it’s comfortable for long drives, just like our GMT900s are. We love it! Had to pick up our daughter from volleyball practice tonight at the high school, and my wife and I rolled up in front looking like CIA. The windows have a super dark tint.

The guy we bought it from was a fanatic. He kept it in a climate controlled garage and it’s indistinguishable from new. Truly. It even smells new. It’s never been driven in snow. I’m over the moon and feeling super lucky.

You can tell it’s a 3500 on rough roads but it’s smooth as can be on the highway. I’ll install the trailer brake controller tomorrow and go pick up the camper.

View attachment 433502
View attachment 433503
That is awesome! Super excited for you and I think you hit it right on the head in how to describe the ride/handling. CIA/Govt life is the best hahaha!

That mpg tho is not sustainable… I’m averaging about 13-15mpg with mixed driving.

Your truck looks GREAT!
 

Geotrash

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That is awesome! Super excited for you and I think you hit it right on the head in how to describe the ride/handling. CIA/Govt life is the best hahaha!

That mpg tho is not sustainable… I’m averaging about 13-15mpg with mixed driving.

Your truck looks GREAT!
Thanks!

Yeah that was just highway. I'm expecting 13-15 based on what our other two 6.2L trucks are doing.

Also, if it's okay with you since it's your thread, I'd like to keep posting questions and information here in order to consolidate it to one place for 3500 owners who might visit in the future. The existing title is already perfect. Would that be okay?
 
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Bigburb3500

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Thanks!

Yeah that was just highway. I'm expecting 13-15 based on what our other two 6.2L trucks are doing.

Also, if it's okay with you since it's your thread, I'd like to keep posting questions and information here in order to consolidate it to one place for 3500 owners who might visit in the future. The existing title is already perfect. Would that be okay?
100% ok with that! I’m super excited you bought a 3500 so close in time with my purchase so we can compare notes and experiences. We can treat it like our own “mini-forum” for the 3500 Suburban and hopefully we can see if there are other owners out there.

We will be doing a ~1000 road trip in a week or so. No towing but will be loaded down for a 2 week trip for camping/fishing for the family + parents.
 

Geotrash

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Installed a Tekonsha P3 trailer brake controller this morning, and went to pick up the camper this afternoon. The 4.10 gears are perfect for holding 5th on the highway up and down modest rolling hills - exactly what I was hoping for. Essentially zero squat (1/4” or so) from the 750 lb tongue weight.

Throttle response is more restrained, requiring much more pressure on the pedal than the GMT900 Yukon XL Denalis for the same result, but when I do give it the boot, the 6.0 holds its own with the 6.2’s quite well.
 

89Suburban

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Drove it 3.5 hours home tonight and it’s comfortable for long drives, just like our GMT900s are. We love it! Had to pick up our daughter from volleyball practice tonight at the high school, and my wife and I rolled up in front looking like CIA. The windows have a super dark tint.

The guy we bought it from was a fanatic. He kept it in a climate controlled garage and it’s indistinguishable from new. Truly. It even smells new. It’s never been driven in snow. I’m over the moon and feeling super lucky.

You can tell it’s a 3500 on rough roads but it’s smooth as can be on the highway. I’ll install the trailer brake controller tomorrow and go pick up the camper.

View attachment 433502
View attachment 433503


So happy for you brother!!! Good luck with her!!! :)
 
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Bigburb3500

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Installed a Tekonsha P3 trailer brake controller this morning, and went to pick up the camper this afternoon. The 4.10 gears are perfect for holding 5th on the highway up and down modest rolling hills - exactly what I was hoping for. Essentially zero squat (1/4” or so) from the 750 lb tongue weight.

Throttle response is more restrained, requiring much more pressure on the pedal than the GMT900 Yukon XL Denalis for the same result, but when I do give it the boot, the 6.0 holds its own with the 6.2’s quite well.
Great to hear it tows well with the 7k lbs. I was stalking on another forum and I think the holding gears is also a transmission tune that GM does on HD trucks vs the 1500 chassis. The 1/2ton will always try to shoot to the highest gear (even in tow haul) vs the HD tune which will more willingly hold the gear.

1/4in with 750lbs… thats nothing!
 

strutaeng

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Great to hear it tows well with the 7k lbs. I was stalking on another forum and I think the holding gears is also a transmission tune that GM does on HD trucks vs the 1500 chassis. The 1/2ton will always try to shoot to the highest gear (even in tow haul) vs the HD tune which will more willingly hold the gear.

1/4in with 750lbs… thats nothing!
Leaf springs FTW! Do these trucks have the 5 pack leaf springs?

Congratulations @Geotrash on the new rig! That's an awesome truck!
 

Geotrash

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Leaf springs FTW! Do these trucks have the 5 pack leaf springs?

Congratulations @Geotrash on the new rig! That's an awesome truck!
Thank you, sir!

Yes, they do use the 5-pack with the bottom spring being extra think and only coming into play when there is considerable flex in the other 4.

1721913239704.png
 

Geotrash

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Just confirmed that the batteries (it has dual batteries) are originals and now 6 years old. So I'm going to replace them soon. As near as I can tell, both batteries are size 94. Given that I had bad experiences with AGM batteries on my other rigs, I'm leaning toward flooded lead acid batteries from Walmart. Anyone have an opinion on this generation's battery needs?
 
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Bigburb3500

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Just confirmed that the batteries (it has dual batteries) are originals and now 6 years old. So I'm going to replace them soon. As near as I can tell, both batteries are size 94. Given that I had bad experiences with AGM batteries on my other rigs, I'm leaning toward flooded lead acid batteries from Walmart. Anyone have an opinion on this generation's battery needs?
No opinion. From what I can tell unless running a lot of accessories this is overkill for a gasser. I believe our trucks came with the up-sized alternator as well. Plenty of power considering this is not a diesel or we are running huge plows/winches/lights at the same time.
 

gtrslngrchris

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Just confirmed that the batteries (it has dual batteries) are originals and now 6 years old. So I'm going to replace them soon. As near as I can tell, both batteries are size 94. Given that I had bad experiences with AGM batteries on my other rigs, I'm leaning toward flooded lead acid batteries from Walmart. Anyone have an opinion on this generation's battery needs?
No opinion. From what I can tell unless running a lot of accessories this is overkill for a gasser. I believe our trucks came with the up-sized alternator as well. Plenty of power considering this is not a diesel or we are running huge plows/winches/lights at the same time.
Even some of the Duramax guys will downsize to a single battery although I would be afraid to knowing how difficult it can be to turn over sometimes, ESPECIALLY in the cold, but I wouldn't even blink to remove one for a gasser. That would save you at least a couple hundred bucks.
 
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Bigburb3500

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Even some of the Duramax guys will downsize to a single battery although I would be afraid to knowing how difficult it can be to turn over sometimes, ESPECIALLY in the cold, but I wouldn't even blink to remove one for a gasser. That would save you at least a couple hundred bucks.
Agreed. I think it’s interesting because I think there are several threads on here on how to add a second battery to gassers. It’s a nice benefit but expensive to replace!
 

Geotrash

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Even some of the Duramax guys will downsize to a single battery although I would be afraid to knowing how difficult it can be to turn over sometimes, ESPECIALLY in the cold, but I wouldn't even blink to remove one for a gasser. That would save you at least a couple hundred bucks.
Well, we use it for boondocking (camping in our RV with no hookups), so the extra battery capacity could come in handy. I'm inclined to keep the secondary battery. The main decision I have to make is between AGM and conventional flooded lead acid batteries.
 

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I've been buying Walmart batteries for the past 15 or 20 years. One thing I've noticed is that for any given size there may be two levels of warranty (and I assume quality). I always buy the one with the most warranty if it's available and have never regretted it.

Comparing warranty, CCA specs, and price, I don't think you can go wrong. And Walmarts are virtually everywhere in the U.S. so not hard to get warranty adjustment if needed.
 

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