WTB - PS pump pulley, negative backspacing needed - The 1947 - Present Chevrolet & GMC Truck Message Board Network

msgross · 11-11-2008, 05:20 PM

Need to find a PS pump pulley that will line this pump up with the water pump pulley. Current one is flat but new one will have to have negative backspacing (bell shaped?) I can get exact measurements if needed... any ideas?

Edit: I might also need a 3 groove crank pulley as well... or an add-on crank pulley...

**CPNE** · 11-11-2008, 05:53 PM

I think what you need is a 3rd crank pulley, as pictured below.

msgross · 11-11-2008, 05:57 PM

actually I would need that AND a new PS pulley... I think I need this one on the left...

Can I run just the water pump tri-pulley or should I look for the tri-pulley for the crank as well???

jayharrell · 11-11-2008, 07:49 PM

Not sure is this is for a chevy or a buick. Maybe it'll work for yah. Looks like its 1 3/4 inches tall, with 1 inch from the inside back stop to the desk. 5 inches across. Might be too much offset the more i look.

msgross · 11-11-2008, 09:54 PM

that does look deeper and a larger groove.. what's the shaft size?

jayharrell · 11-11-2008, 11:03 PM

Looks like 5/8 shaft with a key pin. Probably a buick pulley. Sry bout that.

jc · 11-12-2008, 08:17 AM

mike i checked my pile last night before i saw these pics.
i was looking for something with more of a bell shape like the one
jayharrell posted .

i will have to back out when i get a chance to look for the one in the pic you circled.

i do have 2 3 groove crank pullys and a single pully that may have been for the crank not sure

i wasnt feeling to good last night or today so i didnt persue it that well yet.

ill see what i can do.

msgross · 11-12-2008, 09:32 AM

thanks... no hurry

jc · 11-14-2008, 07:19 PM

crank pullys

a power steering pump pully off of a newer truck i think. next to an original

some water pump pullys just incase

msgross · 11-14-2008, 07:43 PM

My crank pulley is flat on the inside, I'll take a pic of it removed tomorrow. Are those outer crank pulley's add-on or are they 3 groove solid pulleys?

jc · 11-14-2008, 08:37 PM

they are one piece

11-11-2008, 05:20 PM	#1
msgross Registered User Join Date: Jul 2006 Location: Central PA Posts: 12,201	WTB - PS pump pulley, negative backspacing needed Need to find a PS pump pulley that will line this pump up with the water pump pulley. Current one is flat but new one will have to have negative backspacing (bell shaped?) I can get exact measurements if needed... any ideas? Edit: I might also need a 3 groove crank pulley as well... or an add-on crank pulley... Attached Images __________________ The Garage: 1968 K-10 SWB - "Project Money Pit" 1996 Z-71 - "huntin rig" 1969 C-10 LWB (SOLD) "Project flip that truck or else" 1993 Passport, F@rd 1-ton (SOLD)"Project Cousin Eddie" My Garage Build "The 1,000 footer" Last edited by msgross; 11-11-2008 at 06:15 PM.

11-11-2008, 05:53 PM	#2
CPNE Resident Curmudgeon Join Date: Dec 1999 Location: NH Posts: 6,662	Re: WTB - PS pump pulley, negative backspacing needed I think what you need is a 3rd crank pulley, as pictured below. Attached Images __________________ Currently on or near the homestead: 67 Chevy SWB 2WD stepside 350/3 on tree (Pat's) 67 GMC SWB 2WD Fleet 402/auto (Brian's under construction) 67 Chevy 3/4 ton 2WD 402/auto (Business Hauler) 67 Chevy 1 ton dually 2WD 396/4 speed (Former business hauler, Needs TLC) 68 Chevy 1/2 ton Suburban 2WD 250 six/3 on tree (Brian's Needs TLC) 70 Chevy 3/4 ton 4WD 350/4 speed (Pat's - Disguised as a 68 GMC) 71 Chevy SWB stepside (Crushed by tree - parts donor) 72 Chevy 3/4 ton 4WD (Parts donor) 72 Chevy 3/4 ton 4WD Suburban (Parts Donor) 72 GMC 3/4 ton 4WD 292 six/4 speed (Mine - Disguised as a 67 GMC) 81 GMC 4WD Dually Dump Body 350/4 speed (Business Hauler) 82 Camaro Z/28 355/Super T-10 (Pat's toy) 93 Caprice 9C1 (Brian's Cop Car) 02 Toyota Camry (Reliable but a souless steel and plastic hulk) 2011 2SS RS Camaro M6 Factory Hurst Shifter Maybe I need to sell some of this crap Yet another Bozo with a sawz-all

11-11-2008, 05:57 PM	#3
msgross Registered User Join Date: Jul 2006 Location: Central PA Posts: 12,201	Re: WTB - PS pump pulley, negative backspacing needed actually I would need that AND a new PS pulley... I think I need this one on the left... Can I run just the water pump tri-pulley or should I look for the tri-pulley for the crank as well??? Attached Images __________________ The Garage: 1968 K-10 SWB - "Project Money Pit" 1996 Z-71 - "huntin rig" 1969 C-10 LWB (SOLD) "Project flip that truck or else" 1993 Passport, F@rd 1-ton (SOLD)"Project Cousin Eddie" My Garage Build "The 1,000 footer"

11-11-2008, 07:49 PM	#4
jayharrell Gettin By on Gettin By Join Date: Jan 2008 Location: Cedar Creek, Tx Posts: 1,033	Re: WTB - PS pump pulley, negative backspacing needed Not sure is this is for a chevy or a buick. Maybe it'll work for yah. Looks like its 1 3/4 inches tall, with 1 inch from the inside back stop to the desk. 5 inches across. Might be too much offset the more i look. Attached Images __________________ 69 CST10 LWB 455 Buick 00 S10 2.2 Vin5 76 GL1000 Naked 1bl VW carb "Adios to all the concrete; Gonna get me some dirt road back streets" Last edited by jayharrell; 11-11-2008 at 07:52 PM.

11-11-2008, 09:54 PM	#5
msgross Registered User Join Date: Jul 2006 Location: Central PA Posts: 12,201	Re: WTB - PS pump pulley, negative backspacing needed that does look deeper and a larger groove.. what's the shaft size? __________________ The Garage: 1968 K-10 SWB - "Project Money Pit" 1996 Z-71 - "huntin rig" 1969 C-10 LWB (SOLD) "Project flip that truck or else" 1993 Passport, F@rd 1-ton (SOLD)"Project Cousin Eddie" My Garage Build "The 1,000 footer"

11-11-2008, 11:03 PM	#6
jayharrell Gettin By on Gettin By Join Date: Jan 2008 Location: Cedar Creek, Tx Posts: 1,033	Re: WTB - PS pump pulley, negative backspacing needed Looks like 5/8 shaft with a key pin. Probably a buick pulley. Sry bout that. __________________ 69 CST10 LWB 455 Buick 00 S10 2.2 Vin5 76 GL1000 Naked 1bl VW carb "Adios to all the concrete; Gonna get me some dirt road back streets"

11-12-2008, 08:17 AM	#7
jc Registered User Join Date: Jan 2001 Location: Jackson, New Jersey Posts: 1,560	Re: WTB - PS pump pulley, negative backspacing needed mike i checked my pile last night before i saw these pics. i was looking for something with more of a bell shape like the one jayharrell posted . i will have to back out when i get a chance to look for the one in the pic you circled. i do have 2 3 groove crank pullys and a single pully that may have been for the crank not sure i wasnt feeling to good last night or today so i didnt persue it that well yet. ill see what i can do. __________________ 2004 Silverado 2500HD Crewcab 4x4 2000 TOYOTA 4RUNNER 1971 CHEYENNE LWB (THE LOVE SHACK) 1967 c-10 lwb (THE FARMERS DAUGHTER)

11-12-2008, 09:32 AM	#8
msgross Registered User Join Date: Jul 2006 Location: Central PA Posts: 12,201	Re: WTB - PS pump pulley, negative backspacing needed thanks... no hurry __________________ The Garage: 1968 K-10 SWB - "Project Money Pit" 1996 Z-71 - "huntin rig" 1969 C-10 LWB (SOLD) "Project flip that truck or else" 1993 Passport, F@rd 1-ton (SOLD)"Project Cousin Eddie" My Garage Build "The 1,000 footer"

11-14-2008, 07:19 PM	#9
jc Registered User Join Date: Jan 2001 Location: Jackson, New Jersey Posts: 1,560	Re: WTB - PS pump pulley, negative backspacing needed crank pullys a power steering pump pully off of a newer truck i think. next to an original some water pump pullys just incase __________________ 2004 Silverado 2500HD Crewcab 4x4 2000 TOYOTA 4RUNNER 1971 CHEYENNE LWB (THE LOVE SHACK) 1967 c-10 lwb (THE FARMERS DAUGHTER) Last edited by jc; 11-14-2008 at 07:21 PM.

11-14-2008, 07:43 PM	#10
msgross Registered User Join Date: Jul 2006 Location: Central PA Posts: 12,201	Re: WTB - PS pump pulley, negative backspacing needed My crank pulley is flat on the inside, I'll take a pic of it removed tomorrow. Are those outer crank pulley's add-on or are they 3 groove solid pulleys? __________________ The Garage: 1968 K-10 SWB - "Project Money Pit" 1996 Z-71 - "huntin rig" 1969 C-10 LWB (SOLD) "Project flip that truck or else" 1993 Passport, F@rd 1-ton (SOLD)"Project Cousin Eddie" My Garage Build "The 1,000 footer"

11-14-2008, 08:37 PM	#11
jc Registered User Join Date: Jan 2001 Location: Jackson, New Jersey Posts: 1,560	Re: WTB - PS pump pulley, negative backspacing needed they are one piece __________________ 2004 Silverado 2500HD Crewcab 4x4 2000 TOYOTA 4RUNNER 1971 CHEYENNE LWB (THE LOVE SHACK) 1967 c-10 lwb (THE FARMERS DAUGHTER)



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