This really is the fix! - The 1947 - Present Chevrolet & GMC Truck Message Board Network

aztxk5 · 05-11-2005, 07:39 PM

Guys,

I have always had weak brakes on my blazer. Well I read about swapping in a 3/4 ton brake booster and was sceptical but it is the fix! I can lock em down now it feels much safer than before. I kept the original M/C and just changed the booster. Easy, easy, $99.00 at the local parts store.
Al

bouncytruck · 05-11-2005, 07:43 PM

I've heard about others doing that too. Good to know! Is your truck lifted? Are you still running 1/2 gear?

LUV2XCLR8 · 05-11-2005, 07:52 PM

Quote:

Originally Posted by bouncytruck

I've heard about others doing that too. Good to know! Is your truck lifted? Are you still running 1/2 gear?

Scrubby · 05-11-2005, 08:48 PM

I did the same and the difference was night and day. I went the junk yard route, but for $99, I should have probably got new. Same deal though, before my brakes were really weak and I kept trying to adjust the rears to get it to stop better. I put in the 3/4 ton booster, and bam, I could lock up the tires. I highly recommend it also.

My blazer is lifted 4 inches and is running the 1/2 ton gear still.

71jimmy · 05-11-2005, 09:45 PM

Cool, I read about that on the "other" blazer board. (can I say that?) Sounded like an excellent idea. Going to try it myself. What type/year booster did you get?

*Medicanman71* · 05-11-2005, 10:29 PM

are you talking about blazers w/ out discs in the front? My blazer (With brand spankin new breaks and master cyl.) stop about 1000X better then a 2001 Durango SXT 4x4 i drive sometimes. I hate that abs junk it has too. I dont know about "locking up" the tires !?!? My rears did that just fine before i fixed them, heh heh.

aztxk5 · 05-11-2005, 11:08 PM

My Blazer is a 71 with disc brakes lifted 2" with all stock running gear. I couldn't believe the difference.
A couple of things, get a new vacuum hose about 4" longer because the booster is deeper and the bracket from the firewall to M/C will no longer fit. But I have a fix for that and as soon as I get ir done I will post a pic.
There are a lot of so called fix's posted on these boards but again, this one works!
Al

skid · 05-12-2005, 12:12 AM

I agree with all the above posters. I put a 3/4 ton booster and a C3 Corvette M/C (for future rear disk brakes) and it has excellent feel and incredible stopping power. I made a new plunger rod as well for the M/C so the brake pedal barely moves (less than 1/2") before I get the solid feel of the brakes. They feel better than any new truck, no mushiness at all.

vtblazer · 05-12-2005, 06:40 AM

Could you use the 3/4 ton master?
Would it change anything if you did?

I guess not having to disconnect brake lines would be a plus.

aztxk5 · 05-12-2005, 08:57 AM

You can use the 3/4 ton M/C, but it plumbs the opposite of the 1/2 ton. Also I don't think there is an advantage, I believe the rod dia. is the same.
Al

71jimmy · 05-12-2005, 12:20 PM

Quote:

Originally Posted by aztxk5

You can use the 3/4 ton M/C, but it plumbs the opposite of the 1/2 ton. Also I don't think there is an advantage, I believe the rod dia. is the same.
Al

YUP, what he said!

05-11-2005, 07:39 PM	#1
aztxk5 Registered User Join Date: Jan 2005 Location: Azle, Texas USA Posts: 48	This really is the fix! Guys, I have always had weak brakes on my blazer. Well I read about swapping in a 3/4 ton brake booster and was sceptical but it is the fix! I can lock em down now it feels much safer than before. I kept the original M/C and just changed the booster. Easy, easy, $99.00 at the local parts store. Al

05-11-2005, 07:43 PM	#2
bouncytruck SKINNY TIRES RULE! Join Date: Sep 2001 Location: Bothell, WA Posts: 11,038	I've heard about others doing that too. Good to know! Is your truck lifted? Are you still running 1/2 gear? __________________ bouncytruck 1972 K5 The Hauler 1994 K1500 Suburban The Daily2010 Kia Soul Wife's Ride2014 Fiat 500L

05-11-2005, 09:45 PM	#5
71jimmy Registered User Join Date: Mar 2004 Location: Sacramento, CA Posts: 1,083	Cool, I read about that on the "other" blazer board. (can I say that?) Sounded like an excellent idea. Going to try it myself. What type/year booster did you get? __________________ '71 Jimmy, 350, SM465, NP205, 2in Tuff Country lift, 33s on rallies, TBI, softtop and hardtop "If life was fair you'd be able to afford one of each and a garage large enough to house them all."

05-12-2005, 12:12 AM	#8
skid Registered User Join Date: Dec 2003 Location: Left Coast Posts: 254	I agree with all the above posters. I put a 3/4 ton booster and a C3 Corvette M/C (for future rear disk brakes) and it has excellent feel and incredible stopping power. I made a new plunger rod as well for the M/C so the brake pedal barely moves (less than 1/2") before I get the solid feel of the brakes. They feel better than any new truck, no mushiness at all. __________________ Toys: 72 K5 Blazer 74 Vette

05-11-2005, 08:48 PM	#4
Scrubby Check out GMTrucks.org Join Date: Sep 2003 Location: Boise, Id Posts: 284	I did the same and the difference was night and day. I went the junk yard route, but for $99, I should have probably got new. Same deal though, before my brakes were really weak and I kept trying to adjust the rears to get it to stop better. I put in the 3/4 ton booster, and bam, I could lock up the tires. I highly recommend it also. My blazer is lifted 4 inches and is running the 1/2 ton gear still.

05-11-2005, 10:29 PM	#6
Medicanman71 Account Suspended Join Date: May 2005 Location: Where the Wild Things Are Posts: 696	are you talking about blazers w/ out discs in the front? My blazer (With brand spankin new breaks and master cyl.) stop about 1000X better then a 2001 Durango SXT 4x4 i drive sometimes. I hate that abs junk it has too. I dont know about "locking up" the tires !?!? My rears did that just fine before i fixed them, heh heh.

05-11-2005, 11:08 PM	#7
aztxk5 Registered User Join Date: Jan 2005 Location: Azle, Texas USA Posts: 48	My Blazer is a 71 with disc brakes lifted 2" with all stock running gear. I couldn't believe the difference. A couple of things, get a new vacuum hose about 4" longer because the booster is deeper and the bracket from the firewall to M/C will no longer fit. But I have a fix for that and as soon as I get ir done I will post a pic. There are a lot of so called fix's posted on these boards but again, this one works! Al

05-12-2005, 06:40 AM	#9
vtblazer Registered User Join Date: Oct 2003 Location: Central Vermont Posts: 8,537	Could you use the 3/4 ton master? Would it change anything if you did? I guess not having to disconnect brake lines would be a plus.

05-12-2005, 08:57 AM	#10
aztxk5 Registered User Join Date: Jan 2005 Location: Azle, Texas USA Posts: 48	You can use the 3/4 ton M/C, but it plumbs the opposite of the 1/2 ton. Also I don't think there is an advantage, I believe the rod dia. is the same. Al



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