Brake Boot Question - The 1947 - Present Chevrolet & GMC Truck Message Board Network

gator2511 · 08-25-2005, 05:30 PM

The rubber boot on my brake rod to master cyl. was gone and hot air was coming in the truck. Got a new one. It has 5 holes in it! Am I missing something? how is that going to seal off the air leak? Also, which way does this go in, holes in or out. I thought this was going to be a quick simple job but I can't believe what I've gotten into.

Its a 72 chebbie k10 with power brakes.

RicksTrucks · 08-25-2005, 06:30 PM

I think maybe the holes go inside and are used to maybe help it compress as you push it from the firewall side.

JimKshortstep4x4 · 08-25-2005, 07:11 PM

There are two boots on the power brake setup. One goes onto the booster and it has holes in it. The other boot fits into the firewall and the booster rod fits into the boot. It only has the rod hole so everything is sealed.

GMC Paul has the correct boot, it is PN 360354.

Here is a link. http://www.gmcpauls.com/brakes_2.htm

Jim

gator2511 · 08-25-2005, 08:36 PM

thanks Jim K. I knowed they was more to it.

08-25-2005, 05:30 PM	#1
gator2511 Registered User Join Date: Mar 2005 Location: tampa florida Posts: 776	Brake Boot Question The rubber boot on my brake rod to master cyl. was gone and hot air was coming in the truck. Got a new one. It has 5 holes in it! Am I missing something? how is that going to seal off the air leak? Also, which way does this go in, holes in or out. I thought this was going to be a quick simple job but I can't believe what I've gotten into. Its a 72 chebbie k10 with power brakes.

08-25-2005, 06:30 PM	#2
RicksTrucks Senior Member Join Date: Jan 2005 Location: Claremore, OK 74017 Posts: 2,639	I think maybe the holes go inside and are used to maybe help it compress as you push it from the firewall side. __________________ 68 Short Stepside C-10 69 SWB C-10 70 Flatbed C-20 70 LWB C-20 BB402 70 LWB C-10 CST 70 LWB C-10 CST 71 Short Stepside Cheyenne C-10 72 LWB C-10 72 Blazer 4x4 4spd 95 Jeep Cherokee 4x4

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08-25-2005, 07:11 PM	#3
JimKshortstep4x4 Senior Member Join Date: Jul 2001 Location: Muskegon,MI,USA Posts: 6,026	There are two boots on the power brake setup. One goes onto the booster and it has holes in it. The other boot fits into the firewall and the booster rod fits into the boot. It only has the rod hole so everything is sealed. GMC Paul has the correct boot, it is PN 360354. Here is a link. http://www.gmcpauls.com/brakes_2.htm Jim

08-25-2005, 08:36 PM	#4
gator2511 Registered User Join Date: Mar 2005 Location: tampa florida Posts: 776	thanks Jim K. I knowed they was more to it.



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