![1988 GMC Sierra 1500 I (GMT400) Regular cab LWB Wideside 5.0 V8 (175 Hp) Automatic | Technical specs, data, fuel consumption, Dimensions 1988 GMC Sierra 1500 I (GMT400) Regular cab LWB Wideside 5.0 V8 (175 Hp) Automatic | Technical specs, data, fuel consumption, Dimensions](https://www.auto-data.net/images/f126/GMC-Sierra-1500-I-GMT400-Regular-cab-LWB-Wideside.jpg)
1988 GMC Sierra 1500 I (GMT400) Regular cab LWB Wideside 5.0 V8 (175 Hp) Automatic | Technical specs, data, fuel consumption, Dimensions
![1988 GMC Sierra 1500 I (GMT400) Regular cab SWB Wideside 5.7 V8 (210 Hp) Automatic | Technical specs, data, fuel consumption, Dimensions 1988 GMC Sierra 1500 I (GMT400) Regular cab SWB Wideside 5.7 V8 (210 Hp) Automatic | Technical specs, data, fuel consumption, Dimensions](https://www.auto-data.net/images/f97/GMC-Sierra-1500-I-GMT400-Regular-cab-SWB-Wideside.jpg)
1988 GMC Sierra 1500 I (GMT400) Regular cab SWB Wideside 5.7 V8 (210 Hp) Automatic | Technical specs, data, fuel consumption, Dimensions
![1988 GMC SIERRA SLE 1500 — Oldcott Motors : American Car Specialists : UK Official Dodge & Ram Dealers 1988 GMC SIERRA SLE 1500 — Oldcott Motors : American Car Specialists : UK Official Dodge & Ram Dealers](https://www.oldcottmotors.co.uk/wp-content/uploads/2020/12/1988-gmc-sierra-redIMG_3868-scaled.jpg)
1988 GMC SIERRA SLE 1500 — Oldcott Motors : American Car Specialists : UK Official Dodge & Ram Dealers
![Support arrière et bascule tombantes, pour Chevy Silverado C1500 GMC Sierra 1999 – 2007, Kit de bascule de 6 pouces - AliExpress Support arrière et bascule tombantes, pour Chevy Silverado C1500 GMC Sierra 1999 – 2007, Kit de bascule de 6 pouces - AliExpress](https://ae01.alicdn.com/kf/S71d61b6f9f5c4e9fa87fa69713bc019a9/Support-arri-re-et-bascule-tombantes-pour-Chevy-Silverado-C1500-GMC-Sierra-1999-2007-Kit-de.jpg)