Timbren Springs Not Lining Up with Axle Bracket on 2004 GMC Yukon XL

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Question:

I have a 2004 GMC Yukon XL Denali with a 2 rear lift spacers and Suburban Z71 rear coil springs that gave around an additional inch of lift. I have the Timbren TGMRG25C with two 1 spacers and one 1/2 spacer on each side. With that setup the Timbrens just rest on the axles. But only about 1/4 of the Timbren actually makes contact with the pad on the axle. The rest is hanging off the edge. The issue is the coil spring type suspension with trailing arms and angle at which the Timbren and axle make contact. With the stock bump stop, the angle the bump stop and axle make contact would almost be perpendicular. However with the Timbren installed the angle is way off to the point where they hardly make contact with the axle pad and Im afraid once any load is put on the truck the Timbren would just pop out of the cups they are mounted in. The pictures are a bit hard to see exactly how they make contact but you can see they are barely on the axle pads. I plan on removing one of the 1 spacers on each side to get some clearance between the stops and the axle but am still concerned with the angle theyll meet at. The angle will be slightly reduced when the Timbrens are shortened but still a concern. Any ideas on how to remedy this?

asked by: Jason M

0

Expert Reply:

Is it the additional spacers that are causing the main part of the spring to out of alignment compared to the stock bump stops on your 2004 GMC Yukon XL? Are the Timbren springs fully seated in the bump stop cups? On these vehicles it is hard to manually push them into place. We usually use a block of wood and slowly put weight back on the axle so that the wood and the weight will push the springs into the bump stop cup.

And I know you have the Z71 springs but is the Yukon itself 4-wheel drive? And is it a 1500 or 2500? I just want to make sure you are using the right springs for the application. Spring set # TGMRG25C is meant for a 4x4 1500 model.

Springs # TGMRYS4 are for the 2-wheel drive 1500.
Springs # TGMRSB4S are for the 2- or 4-Wheel drive 2500.

expert reply by: Michael H

0

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Answer 1

Timbrens are going to be what I would recommend for your 2004 Chevy Tahoe. They are better suited for heavier duty applications like what you have so for that the #TGMRYS4 would be what you would want for your 2004 Chevy Tahoe. When installing,…

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Answer 2

Hi Bob! The Timbren #TGMRG25C you ordered will have 6,000 pounds of load assist and will be the highest rated option available for your 2003 Tahoe. This will definitely solve your sagging issue, especially if you are close to or at the maximum load…

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Answer 3

The two sizes you mentioned are pretty similar and fit many of the same 15 inch wheels. The 205/75-15 fits rim widths of 5 inch to 6 inch whereas the 225/75-15 fits widths that are 5 inch to 6-1/2 inch. The 205 is 27.1 inches tall and the 225 is 28.4…

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Answer 4

Hey Nick! The gap is typically the same on both sides when installing the Timbren SES #TFR250SDG. The smallest recommended gap is 1/2" so adding a spacer isn't a good idea. The smallest spacer is also 1/2" so you would be down to a…

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Answer 5

The Timbren rear jounce spring kit you referenced, part #TGMRYS4, is a confirmed fit for the vehicle you indicated, a 2010 Chevy Tahoe, as well as several other GM vehicles noted on that item's page. Thank you for your photo that shows the…

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Answer 6

If you have Timbren springs #TGMRYS4 then they bolt into place. There are 2 parts to each of these springs. One part is the spring itself which should come off easily once you remove the bolt up in the center. The other part is a short cylinder that…

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Answer 7

When it comes to a suspension enhancement system for your 2 wheel drive 2003 GMC Yukon, you will want to go with the Timbren #TGMFK25S. This system uses hollow rubber springs to absorb the brunt of the force on the front of your vehicle which helps…

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Answer 8

Since the springs are longer than stock on your 2002 Chevy Avalanche air bags that fit inside the springs, such as #F4108 will not work. There are not spacers available that would work either. But I do have a solution for you. You could use Timbren…

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Answer 9

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 10

According to Blue Ox, it'll take an experienced installer about 4 to 5 hours to complete the installation of their #BX1128 Base Plate Kit on a 2016 Jeep Grand Cherokee. The install isn't what I'd call super-difficult, but the installation…

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Answer 11

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 12

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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Timbren Springs Not Lining Up with Axle Bracket on 2004 GMC Yukon XL

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