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#1 |
Shortbox wanna-be.
Join Date: Mar 2002
Location: Fort St.John, British Columbia, Canada
Posts: 773
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We have a shortage of good trucks for parts around my area, but there are tons of others. What I would like to know is what have you used/modified to fit our trucks? Is there a specific one that doens't take much, or are they all about the same?
Thanks Reid ------------------ Sylvan Lake, Alberta, Canada 1970 Chevy C20 Custom Camper #s matching 402BB Turbo 400 trans. Air conditioning, power steering, manual brakes. 73,600 Original Miles!! (Add on 2000 more from raod trip!)
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1970 Chevy C20 Custom Camper 402BB Turbo 400 trans. (Slowly becoming a '70 shortbox 1/2 ton) '71 Camaro SS 402/T400 resto '97 Z28 (11.41@127MPH) ![]() |
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#2 |
Progress = 0%
Join Date: Nov 2001
Location: Kansas City, MO
Posts: 2,108
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I was in a junk yard last weekend and was looking around at brake boosters/master cylinders and the ones on late 80's? S-10's looked somewhat promising. Looks like the master cylinder body on those is aluminum and the reservoir is plastic (no rust problems!) And it mounts flush to the firewall. Has anyone attempted this installation? Obviously the push rod would have to be modified and mounting holes would have to be drilled in the firewall (unless the existing stud holes would work??). I might check into this more because I'd like to get rid of the stock monster booster.
------------------ Current project: The "HACKstoration" 1967 GMC shortbed/fleetside, 350/700R4, air bag suspension, 18" billet wheels. Other vehicle of interest: 1957 Chevy Bel-Air 4dr hard top, 283/powerglide, lowered 3-1/2" in front and 2 inches in the rear. Web Site: jaySpot.com AOL Screen Name: Slammed67GMC Location: Kansas City, MO [This message has been edited by Slammed67 (edited April 06, 2002).]
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Jason - '67 GMC swb | '57 Bel-Air 4dr hardtop | '56 210 4dr Wagon | 2000 GMC Sierra |
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#3 |
Shortbox wanna-be.
Join Date: Mar 2002
Location: Fort St.John, British Columbia, Canada
Posts: 773
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Good to know. I was hoping to hit the local pick-a-part this weekend, but wouldn't you know it, its snowing! I hate the weather lately!! Thus I am trying to find out on here.
![]() Thanks! I will definately have a look at one of those. Reid
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1970 Chevy C20 Custom Camper 402BB Turbo 400 trans. (Slowly becoming a '70 shortbox 1/2 ton) '71 Camaro SS 402/T400 resto '97 Z28 (11.41@127MPH) ![]() |
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#4 |
Half a bubble off!
Join Date: Jun 2000
Location: Winfield, Ks, USA
Posts: 5,588
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I would be interested in any alternatives that might be available also. I think I'm going to have to replace one or both (if we ever get any decent weather around here).
------------------[*]'71 Cheyenne, 402BB[*]Winfield, KS[*] http://barn9.freeservers.com[*] steer50@hotmail.com
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Just call me LB. ![]() '71 Cheyenne, 402BB, hauls blondes, brunettes, or redheads. |
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#5 |
Registered User
Join Date: Apr 2001
Location: DALLAS,TX
Posts: 21,964
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If I were gonna use wrecking yard parts I would lean towards a 1/2 truck rather than a S-10 because of the little trucks smaller calipers require a smaller bore that would effect your 1/2 ton trucks brakes. If a late 80's S-10 works, try the same year 1/2 ton truck m/s as it is the same style aluminum w/plastic resivoir. My 2 cents.
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67SWB-B.B.RetroRod 64SWB-Recycle 89CCDually-Driver/Tow Truck 99CCSWB Driver All Fleetsides @rattlecankustoms in IG Building a small, high rpm engine with the perfect bore, stroke and rod ratio is very impressive. It's like a highly skilled Morrocan sword fighter with a Damascus Steel Scimitar..... Cubic inches is like Indiana Jones with a cheap pistol. |
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#6 |
Shortbox wanna-be.
Join Date: Mar 2002
Location: Fort St.John, British Columbia, Canada
Posts: 773
|
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Just to point out, 71Chev just emailed me. Guess he's got a booster off a '72 C20 to sell me. Guess I won't have to do any mods after all.
![]() Reid ------------------ Sylvan Lake, Alberta, Canada 1970 Chevy C20 Custom Camper 402BB Turbo 400 trans. A/C, P/S, manual brakes. 75,800 Original Miles!! '71 Camaro SS 402/T400 resto '97 Z28 -- Runs 11.5 @ 118mph. ![]()
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1970 Chevy C20 Custom Camper 402BB Turbo 400 trans. (Slowly becoming a '70 shortbox 1/2 ton) '71 Camaro SS 402/T400 resto '97 Z28 (11.41@127MPH) ![]() |
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#7 |
Senior Member
![]() Join Date: Dec 1999
Location: Darrington, Washington
Posts: 3,963
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Im doing things backasward on my 67 I hate the booster,so im putting in a 72 manual DB system,for some reason i prefer manual brakes,but wont touch manual steering!!!!
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#8 |
Progress = 0%
Join Date: Nov 2001
Location: Kansas City, MO
Posts: 2,108
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SCOTI,
I was thinking that too and you bring up a good point. However, I have a '78 Monza master cylinder/booster in my '57 Bel-Air (with Chevelle calipers) and it'll stop on a dime. It is obviously a much bigger and heavier car. Also, a friend of mine has a Fiero master cylinder/brake booster in his '58 Nomad and it also works fine. I will research this more though. I went to the junk yard this morning and picked up one off an S-10 (it was only $24.00 so no big loss if it doesn't work). The booster is smaller in diameter, but depth is about twice that of the stock booster. The overall length is about 3 or 4 inches shorter however. After looking at the firewall to see if it will fit I noticed a few possible conflicts. First, since it mounts directly to the firewall, it may interfere with the steering column shift linkage. The mounting studs of the truck would have to be removed since the S-10 booster has studs on it already. The studs are the same distance apart side to side, but are spaced different vertically (new lower holes would need to be drilled). And of course the push rod would have to be modified to fit. I'll let everyone know if I get it to work. ------------------ Current project: The "HACKstoration" 1967 GMC shortbed/fleetside, 350/700R4, air bag suspension, 18" billet wheels. Other vehicle of interest: 1957 Chevy Bel-Air 4dr hard top, 283/powerglide, lowered 3-1/2" in front and 2 inches in the rear. Web Site: jaySpot.com AOL Screen Name: Slammed67GMC Location: Kansas City, MO
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Jason - '67 GMC swb | '57 Bel-Air 4dr hardtop | '56 210 4dr Wagon | 2000 GMC Sierra |
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#9 |
GMC SHORT FLEET F/S
Join Date: Jun 2000
Location: SOUTH WILLIAMSPORT PENNSYLVANNIA
Posts: 2,117
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Just ran accross about 3 today in one yard
------------------ Charles W. Hein S. Williamsport PA imaindianoutlaw@yahoo.com REFRIGERATION TECH 1971 Rolling chassis FOR SALE 1963 Pontiac Tempest 1965 Pontiac GTO 1956 Pontiac 2 dr
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CHARLES WADE HEIN HVACR FOREMAN. LEWISBURG U.S.P. |
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#10 |
Registered User
Join Date: Apr 2001
Location: DALLAS,TX
Posts: 21,964
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The booster is not the area of concern as it just creates the vacuum needed...it's the bore size of the master cyl that is different. S-10's have 10" front disc's that use a smaller bore m.cyl compared w/full size pass cars/trucks w/11" or larger discs & calipers. The larger discs require more fluid thus have bigger caliper piston area & a larger bore m.cyl is needed. What year chevelle did your calipers come from & what size rotors were used?
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67SWB-B.B.RetroRod 64SWB-Recycle 89CCDually-Driver/Tow Truck 99CCSWB Driver All Fleetsides @rattlecankustoms in IG Building a small, high rpm engine with the perfect bore, stroke and rod ratio is very impressive. It's like a highly skilled Morrocan sword fighter with a Damascus Steel Scimitar..... Cubic inches is like Indiana Jones with a cheap pistol. |
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#11 |
Progress = 0%
Join Date: Nov 2001
Location: Kansas City, MO
Posts: 2,108
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SCOTI, The calipers on my '57 are off a '72 Chevelle/El Camino. The rotors are the ones used on a '78 (+/-) Malibu... not sure what dia. they are. I understand what you are saying about the master cylinder bore being smaller though. I'm sure the Monza calipers are much smaller than the Chevelle calipers, but it still works okay. I assume the 1/2 ton master cylider would bolt right up to the S-10 booster, so if the S-10 one didn't give me sufficient braking, I couple swap in a 1/2 ton MC.
------------------ Current project: The "HACKstoration" 1967 GMC shortbed/fleetside, 350/700R4, air bag suspension, 18" billet wheels. Other vehicle of interest: 1957 Chevy Bel-Air 4dr hard top, 283/powerglide, lowered 3-1/2" in front and 2 inches in the rear. Web Site: jaySpot.com AOL Screen Name: Slammed67GMC Location: Kansas City, MO
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Jason - '67 GMC swb | '57 Bel-Air 4dr hardtop | '56 210 4dr Wagon | 2000 GMC Sierra |
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#12 |
Registered User
Join Date: Sep 2001
Location: cooper,tx america
Posts: 127
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I used a 97 Saturn. With a little mod it works great and looks great.
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1972 SWB, VIPER BLUE, TILT, POWER DISC BRAKES,350-AUTO, FACTORY AM/FM. 1971 Camaro SS factory 4 speed project car. " I LOVE IT WHEN A PLAN WORKS" |
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#13 |
Shortbox wanna-be.
Join Date: Mar 2002
Location: Fort St.John, British Columbia, Canada
Posts: 773
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Any pics Eric?
__________________
1970 Chevy C20 Custom Camper 402BB Turbo 400 trans. (Slowly becoming a '70 shortbox 1/2 ton) '71 Camaro SS 402/T400 resto '97 Z28 (11.41@127MPH) ![]() |
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#14 |
Registered User
Join Date: Apr 2001
Location: DALLAS,TX
Posts: 21,964
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post some pics Eric...everybodys doin' it.
__________________
67SWB-B.B.RetroRod 64SWB-Recycle 89CCDually-Driver/Tow Truck 99CCSWB Driver All Fleetsides @rattlecankustoms in IG Building a small, high rpm engine with the perfect bore, stroke and rod ratio is very impressive. It's like a highly skilled Morrocan sword fighter with a Damascus Steel Scimitar..... Cubic inches is like Indiana Jones with a cheap pistol. |
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#15 |
Registered User
Join Date: Sep 2001
Location: cooper,tx america
Posts: 127
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Got my disk of pics at work. I will bring them home tomorrow. Someone will have to post for me cause I dont have a clue.
------------------ 1972 SWB, VIPER BLUE, TILT, POWER DISC BRAKES,350-AUTO, FACTORY AM/FM. 1970 FORMULA 400 FIREBIRD (HAS TO WAIT DUE TO MR. 72)- "If you dont use your head, you might as well have 2 a$$**"
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1972 SWB, VIPER BLUE, TILT, POWER DISC BRAKES,350-AUTO, FACTORY AM/FM. 1971 Camaro SS factory 4 speed project car. " I LOVE IT WHEN A PLAN WORKS" |
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#16 |
Progress = 0%
Join Date: Nov 2001
Location: Kansas City, MO
Posts: 2,108
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Eric, I can post them for you if you e-mail them to me. I'd like to see them too.
Jason ------------------ Current project: The "HACKstoration" 1967 GMC shortbed/fleetside, 350/700R4, air bag suspension, 18" billet wheels. Other vehicle of interest: 1957 Chevy Bel-Air 4dr hard top, 283/powerglide, lowered 3-1/2" in front and 2 inches in the rear. Web Site: jaySpot.com AOL Screen Name: Slammed67GMC Location: Kansas City, MO
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Jason - '67 GMC swb | '57 Bel-Air 4dr hardtop | '56 210 4dr Wagon | 2000 GMC Sierra |
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#17 |
CCRider
Join Date: Feb 2000
Location: Olive Branch,MS,USA
Posts: 2,232
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Most any modern master cylinder will operate any automotive disk brake caliper. When you start changing piston sizes you change two things. The first is pedal effort,if you put too large a piston master cylinder on a manual brake setup you will have to put both feet on the pedal to stop it. And if you put too small a piston on a power brake setup it will throw you thru the windshield when you barely touch the pedal. The second is pedal travel,smaller piston = more travel, larger piston = less travel. The original power brakes on these trucks was too senitive in my opintion,and a minor change in piston size would propably make it have better "feel". Unless you wildly mismatch parts it will work.
------------------ 72 GMC Sierra SWB almost finished---- 84 Softail Olive Branch MS
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72 GMC Sierra SWB almost finished---- 84 Softail Olive Branch MS |
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