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Suspension and Components› Suspension Kits
Southern Truck
3IN REAR BLOCK KIT(19992019 GM 1500 TRUCKS)
SKU: S08Q 15031
Moderate — 2–4 hours
Overview
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Vehicle Symptoms
- Rear of truck sits lower than front
- Vehicle has noticeable rake or sag
- Rear suspension bottoms out easily
- Truck looks uneven or not level when loaded
- Need more clearance for larger tires
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Product descriptions are provided by our supplier partners and may not always be perfectly accurate. Not sure this fits? or call (760) 282-4645 and we’ll verify before you order.
Fitment
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Specifications
| Brand | Southern Truck |
| Part Number | S08Q 15031 |
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Returns & Fitment
Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.
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Orders are processed in 1–3 business days. In stock parts ship promptly from our partner network. Special-order items either aren’t currently stocked or are built to your spec — expect 4–6 weeks. If a part goes on backorder while your order is in the queue, we’ll reach out and work through discounted alternatives together.
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