How Do I Know if I Have an HD-Model 2007 Chevy Silverado Z71?

Question

Question:

I was wondering because what gear oil do I use in it. Because the HD model take 75-90w and my model take 80-90w

asked by: Michael F

0

Expert Reply:

One of the easiest tell-tale signs whether you have an HD model 2007 Chevy Silverado Z21 is if the wheels have an 8-lug nut pattern. If it does have that pattern, then your vehicle is an HD model. If it does not have an 8-lug nut pattern, then it is not an HD model Z21.

expert reply by: Bob C

0

Michael F.

1/1/0001

I was wondering because what gear oil do I use in it. Because the HD model take 75-90w and my model take 80-90w

Bob C.

8/26/2021

Yes, you are correct that the HD model 2007 Chevy Silverado Z21 takes 75w90 differential oil and the 1500 non-hd model takes 80w90.

Answer 1

Unfortunately, the frame with isn't the only consideration. According to Draw-Tite, the differences in the way the front bumper, fascia and grill are situated in regard to the front of the frame members on a 2007 Classic versus a 2007 New Body…

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Answer 2

The only real difference between the Curt #31108 and Draw-Tite #65028 front hitches for your 2004 Chevy Silverado 2500 is that we've found the Curt hitches to traditionally have a little thicker of a powder coat which means they are a little…

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Answer 3

The Draw-Tite front mount receiver #65028 has a 2 inch receiver opening so basically any bike carrier that will fit a 2 inch hitch will work. I have included a link to the bike racks we carry that fit a 2 inch receiver. If you can tell me how many…

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Answer 4

The difference between the Class II and Class III hitches has to do with their Gross Trailer Weight (GTW), their Tongue Weight (TW), and their Hitch Receiver Size. Class II trailer hitch receivers have a 1-1/4 inch receiver and can be rated up to…

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Answer 5

Yes, it will work. You'll just need to cut the Lance 6-pin connector out and rewire it into the etrailer Trailer Wiring 7-Way Upgrade Kit w/ Junction Box and RV Style Connector item #e99011. Here are the individual functions of that Lance 6-pin:…

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Answer 6

Hi Paul, you’re definitely on the right track here, and I can help you narrow this down with confidence. With your tandem 3,500 lb Dexter axles and 33 inch spacing, both the Dexter EZ Flex part #K71-652-00 and the Lippert Road Armor part #LC53CK are…

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Answer 7

Hey Doug! The Firestone Ride-Rite Air Helper Springs #F35FV are the right kit for your 2026 Ford F-350 FX4 dually. However, you will need to measure to be sure it fits. The distance from the top of your rear axle to the top of the jounce bump stop…

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Answer 8

Hey Jairo. So we do not offer a direct replacement for the Norcold N611, but we do have a good replacement option for you. It really comes down to what will fit in your cutout space. Take a look at the Norcold RV Refrigerator w/ Freezer - 8.2 cu ft -…

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Answer 9

Since the pin weight of your camper is 2.1k, I recommend going with the LoadLifter 5000 opposed to the 7500. While technically there is not reason you couldn't use the 7500 kit, it really is not necessary for a camper like yours. Generally the…

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Answer 10

Hey Mary, thanks for reaching out. We do have a hitch for your 2005 Chevy 2500 HD that is up to the task. Here is what I recommend: - Curt Trailer Hitch Receiver - Custom Fit - Class V Commercial Duty - 2-1/2" #C15703 This is the strongest hitch…

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Answer 11

Hey Christoph, you can use the HappiJac turnbuckle part #LC182896 with your Torklift tie downs. We had a customer with this type of setup report back that it worked well for them. This has a reach range of 22-1/2 inch to 35-1/2 inches so you might…

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Answer 12

The correct replacement mounting brackets and hardware for your 2004 Chevrolet 2500 HD with the extended cab are dependent on which Westin 3 inch nerf bars you have. The brackets and hardware are custom to the truck as well as the nerf bars. Use…

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How Do I Know if I Have an HD-Model 2007 Chevy Silverado Z71?

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