---
id: what-makes-the-2025-sierra-1500-slt-different
title: "What makes the 2025 Sierra 1500 SLT different?"
category: faq
subtopic: sierra-slt-v8
page_type: faq
source_url: "https://www.markquartmotors.com/research/gmc/sierra-1500/trim.htm"
tags: ["GMC", "Sierra 1500", "SLT trim", "new", "V8", "towing"]
questions:
  - "Does the SLT have a V8?"
  - "What's best for towing-SLT or AT4?"
  - "What engine is in the SLT?"
related: [sierra-trim-overview, sierra-at4]
dealer: Markquart Motors
---

The Sierra 1500 SLT marks a significant step up: it's the first trim powered by a robust 5.3L V8 engine paired with a 10-speed automatic transmission, setting it apart from the TurboMax trims below.

The SLT focuses on enhanced towing and hauling with available Max Trailering Package, automatic locking rear differential, heavier-duty springs, and increased rear axle weight ratings. You get 18" machined aluminum wheels with dark grey accents, optional skid plates, and advanced safety features like Trailer Side Blind Zone Alert. Inside, upscale touches and the available GMC MultiPro Tailgate with Step Lights round out the capability package.

Choose SLT for serious towing without the diesel investment. Call (715) 833-0444 to compare SLT specs and current availability, or explore our new inventory online.