Toad455
Full Access Member
- Joined
- Aug 3, 2023
- Posts
- 115
- Reaction score
- 76
- Location
- North Texas
- First Name
- Kevin
- Truck Year
- 1978
- Truck Model
- C10
- Engine Size
- 6.0
What is this hole for?
- Thread starter Toad455
- Start date
Disclaimer: Links on this page pointing to Amazon, eBay and other sites may include affiliate code. If you click them and make a purchase, we may earn a small commission.
RaisedK5
Full Access Member
- Joined
- Sep 12, 2021
- Posts
- 115
- Reaction score
- 243
- Location
- Memramcook, New Brunswick, Canada
- First Name
- Leland
- Truck Year
- 1975
- Truck Model
- Blazer
- Engine Size
- 350
You must be registered for see images attach
Toad455
Full Access Member
- Joined
- Aug 3, 2023
- Posts
- 115
- Reaction score
- 76
- Location
- North Texas
- First Name
- Kevin
- Truck Year
- 1978
- Truck Model
- C10
- Engine Size
- 6.0
Thanks much!! Is that from an assembly book that's still available?
Rusty Nail
Full Access Member
- Joined
- Jan 29, 2015
- Posts
- 10,041
- Reaction score
- 10,133
- Location
- the other side of the internet
- First Name
- Rusty
- Truck Year
- 1977
- Truck Model
- C20
- Engine Size
- 350sbc
Foot. Cooler.
RaisedK5
Full Access Member
- Joined
- Sep 12, 2021
- Posts
- 115
- Reaction score
- 243
- Location
- Memramcook, New Brunswick, Canada
- First Name
- Leland
- Truck Year
- 1975
- Truck Model
- Blazer
- Engine Size
- 350
From one of the service manuals available in the Reference Library.
Grit dog
Full Access Member
- Joined
- May 18, 2020
- Posts
- 6,970
- Reaction score
- 12,220
- Location
- Auburn, Washington
- First Name
- Todd
- Truck Year
- 1986, 1977
- Truck Model
- K20, C10
- Engine Size
- 454, 350
Yup it’s to secure the OE AC ductwork.
75gmck25
Full Access Member
- Joined
- Oct 13, 2016
- Posts
- 2,263
- Reaction score
- 2,203
- Location
- Northern Virginia
- First Name
- Bruce
- Truck Year
- 1975
- Truck Model
- K25 Camper Special TH350 NP203
- Engine Size
- 5.7
The metal bracket behind that hole is attached to the HVAC duct that goes to the driver's side vent.
In the LMC catalog it is the Vent-Assembly - LH, part number 38-5250, but the metal bracket is only implied (not really visible) by the nut and screw.
In the LMC catalog it is the Vent-Assembly - LH, part number 38-5250, but the metal bracket is only implied (not really visible) by the nut and screw.
Toad455
Full Access Member
- Joined
- Aug 3, 2023
- Posts
- 115
- Reaction score
- 76
- Location
- North Texas
- First Name
- Kevin
- Truck Year
- 1978
- Truck Model
- C10
- Engine Size
- 6.0
Glad I didn't fill it it, thanks to all.
