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HOMESERVICE MANUALSCHEVROLET2019EXPRESS 2500 BASE, VAN CARGO EXTENDED, 6.0L ENG VIN GREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 88 (ENGINE MECHANICAL - 4.3L (LV1))SPECIFICATIONSTHREAD REPAIR SPECIFICATIONSENGINE BLOCK - TOP/BOTTOM VIEWS
2019 Chevrolet Express 2500 Base, Van Cargo Extended, 6.0L Eng VIN G

Engine Block - Top/Bottom Views

2019 Chevrolet Express 2500 Base, Van Cargo Extended, 6.0L Eng VIN GSECTION Engine Block - Top/Bottom Views
WARNING: This page is about a different car, the 2018 GMC Savana 3500, 2018 GMC Savana 2500, 2018 Chevrolet Express 3500, and 2018 Chevrolet Express 2500. However, it is still accessible from the selected car via links, so may be relevant.
GM3632672Courtesy of GENERAL MOTORS COMPANY
Engine Block - Top/Bottom Views

Hole Thread Size Insert Drill Counterbore Tool Tap Driver Drill Depth - Maximum mm (in) Tap Depth - Maximum mm (in)
J-42385-
1 M6 x 1.0 63 201 202 203 204 23.0 (0.907) 23.0 (0.907)
2 M8 x 1.25 61 206 207 208 209 29.0 (1.14) 29.0 (1.14)
3 M8 x 1.25 210 206 207 208 209 23.0 (0.907) 23.0 (0.907)
4 M10 x 2.0 104 101 N/A 102 103 30.0 (1.18) 30.0 (1.18)
5 M10 x 2.0 104 101 N/A 102 103 52.0 (2.05) 52.0 (2.05)
6 M10 x 1.5 N/A N/A N/A N/A N/A 34.0 (1.35) 34.0 (1.35)
  • Bolt hole 4 has a 1.5 mm (0.059 in) counterbore included in the 30.0 mm (1.18 in) drill depth. Use sleeve J-42385-316  with the drill tap. For the proper hardware and procedure, refer to Thread Repair .
  • Bolt hole 5 has a 15.5 mm (0.807 in) counterbore included in the 52.0 mm (2.05 in) drill depth. For the proper hardware and procedure, refer to Thread Repair .
RENDER: 1.0x

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Stop DIY work and contact a certified mechanic immediately if any of the following apply:

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