Tips and tricks to have a nice ride.

[koachdaddy]

Good info. I didn't know there was a delete for the vacuum pump! So, I put it into the Google machine and found an excellent writeup on the silverado forum along with a video. Super simple to do, block off plugs already ordered. Thanks for sharing!

NOTE- since I'm using a catch-can and didn't want to disturb those hoses, I had to figure out a separate vacuum source. Let me tell ya, the MIT port (before the throttle body) ain't it! Almost cruised right through a stop light as the 'power' in power brakes wasn't there. Ended up buying/tapping a throttle body spacer to get sufficient vacuum pressure needed to function properly.

 

[BMPNUGLS]

Could

NOTE- since I'm using a catch-can and didn't want to disturb those hoses, I had to figure out a separate vacuum source. Let me tell ya, the MIT port (before the throttle body) ain't it! Almost cruised right through a stop light as the 'power' in power brakes wasn't there. Ended up buying/tapping a throttle body spacer to get sufficient vacuum pressure needed to function properly.

you provide a link to the throttle body spacer you bought for this? I’d like to do the same but anything I’m finding that’s for these isn’t thick enough to drill/tap for a connection.

 

[koachdaddy]

Could you provide a link to the throttle body spacer you bought for this? I’d like to do the same but anything I’m finding that’s for these isn’t thick enough to drill/tap for a connection.

Yeah, I ran into the same problem and bought an Airaid at American Trucks. Pricey indeed, but purchased from them for various reasons (mil discount and had a credit balance).
Purchased a tap/die set from Harbor Freight and attempted to perform in a vice...bad decision. Watched a couple how-to vids for my 'YouTube certification' (lol) on tapping aluminum and found using a drill press, motor OFF, and hand feeding the pressure while rotating the cresent wrench was the way to go.

Throttle Body Spacer

T.B. SPACER; CHEV/GMC TRUCK, V8-6.2L F/I, 2015-2023

www.airaid.com

 

[BMPNUGLS]

Yeah, I ran into the same problem and bought an Airaid at American Trucks. Pricey indeed, but purchased from them for various reasons (mil discount and had a credit balance).
Purchased a tap/die set from Harbor Freight and attempted to perform in a vice...bad decision. Watched a couple how-to vids for my 'YouTube certification' (lol) on tapping aluminum and found using a drill press, motor OFF, and hand feeding the pressure while rotating the cresent wrench was the way to go.

Throttle Body Spacer

T.B. SPACER; CHEV/GMC TRUCK, V8-6.2L F/I, 2015-2023

www.airaid.com

PERFECT! Thanks so much! One other question….i know the hose would be a 3/8” ID vacuum rated hose…so the male end for the hose would be 3/8…what size did you tap the spacer for? 1/8 NPT or 1/4 NPT? I guess either would work assuming the spacer is thick enough to allow it…but is a 1/8” NPT too small of an orifice hole for enough vacuum? Or should it be 1/4” NPT to allow enough flow/vacuum for the brake booster volume?

 

[koachdaddy]

PERFECT! Thanks so much! One other question….i know the hose would be a 3/8” ID vacuum rated hose…so the male end for the hose would be 3/8…what size did you tap the spacer for? 1/8 NPT or 1/4 NPT? I guess either would work assuming the spacer is thick enough to allow it…but is a 1/8” NPT too small of an orifice hole for enough vacuum? Or should it be 1/4” NPT to allow enough flow/vacuum for the brake booster volume?

Ah yes, more Harbor Freight purchases. 3 different sizes came in the kit and I chose the 1/4" NPT for use with a 3/8's hose...similar to the stock setup to ensure proper vacuum pressure.

Good link JIC you haven't watched any yet:

tap/die set: https://www.harborfreight.com/6-piece-pipe-tap-die-set-91395.html

3/8" 1/4" NPT used: https://www.harborfreight.com/38-in-professional-air-hose-repair-kit-5-piece-63957.html