WTB drums - The 1947 - Present Chevrolet & GMC Truck Message Board Network

**JIMs70GMC** · 05-27-2003, 05:23 AM

I need front drums for my 70 K25. (3/4 ton 4x4) Thanks,

WORNBRAKES · 05-27-2003, 07:37 PM

I have the rolling front support and all in my back yard that I just pilled off of my 70 Custom Camper. If you think these drums will work, I will pull them off and check the condition. Just let me know if so.
Mario

**JIMs70GMC** · 05-28-2003, 05:27 AM

I don't think the 2wd ones will work.

Erl · 05-28-2003, 09:05 AM

I bought mine at NAPA for about $90 each.

**CPNE** · 05-28-2003, 09:40 AM

I can't help but I may be able to explain why this is not an easy part to locate.

The 70 3/4 ton front drums are a one-year only deal, or at least thats what I was told. Something to do with the diameter of wheel studs. I think it's the only drum that uses the larger studs found on 71/72 disk brake trucks.

70 is an odd year as it was a transition year from drums to disks in both 2 and 4wd.

68 Suburban · 05-28-2003, 09:58 AM

Wasn't it also a strike year, so there would not be as many trucks produced? This would make it not as prosperous to manufacture replacement parts?

**JIMs70GMC** · 05-28-2003, 11:20 AM

erl, I'd gladly pay $90 for new ones. Jeff, the wheel studs are 1/2"(just bought lug nuts). I'm really hoping somebody upgraded their front to disc and might have good drums to sell.

If anybody would be willing to lend me one drum to do a quick check would be great, I'd pay the shipping to and from my house.

Erl · 05-28-2003, 01:36 PM

I have a GMC Master Parts book and used the GM part number at NAPA. He typed in the GM number and the correct drum came up. Sorry but my book only goes to 1969. Maybe someone else can look it up for you.

**JIMs70GMC** · 05-28-2003, 08:10 PM

Called my local NAPA and supposedly (hopefully) they have 3 in Richmond. I go and pick-up 2 tomorrow morning from NAPA. $69 a piece. We'll see.......

**jerry moss** · 05-28-2003, 08:40 PM

i have a 70 3/4 ton 4x4 front diff sitting in my back yard. if the drums from napa aren't correct, let me know and i'll measure these to make sure they're still good. we have a drum mic at work.

**JIMs70GMC** · 05-29-2003, 06:19 AM

Jerry that would be great. I'll find out today and let you know. Thanks, Jim

I should have PM'd you first!

**JIMs70GMC** · 05-29-2003, 06:30 PM

Well the NAPA brakes were too small! I need 12", the ones they had were 11" and for a 2wd not 4wd. I looked through their book (date 1988) and the 12" drums for a 70 K25 were not available.

Jerry, sending you a PM.

05-27-2003, 05:23 AM	#1
JIMs70GMC user # 2756 Join Date: Jun 2001 Location: Chesapeake, Virginia Posts: 4,612	WTB drums I need front drums for my 70 K25. (3/4 ton 4x4) Thanks, __________________ 1970 K25, 8' stepside bed 350/465/205 44 up front, 60 in the rear 4.10s rolling on 33" Dunlop MTs 1986 K5, 350/465/208 Dana 60/14 bolt from a cucv 36" Super Swampers TSL/SX 1983 K20 w/ CUCV axles, 350/700R4/208 sitting on 37" Goodyears 1986 M1031 6.2 diesel, TH400/NP205 locker in the rear and a LS in the front, all stock for now..... 1986 K30, 350/400/205 dana 60 and 14 bolt. I kept the drivetrain. Body/bad and chassis are gone. 1981 K30, 350/465/205 dana 60 and dually 14 bolt. Has a G80, and a flat bed. Going to replace the flat bed. 1985 K20, 350/400/208 10 bolt and SF 14 bolt. I wonder where I can find some 1 tons. Hmmmmm

05-27-2003, 07:37 PM	#2
WORNBRAKES Senior Member Join Date: Jul 2001 Location: Hughesville, MD Posts: 1,350	I have the rolling front support and all in my back yard that I just pilled off of my 70 Custom Camper. If you think these drums will work, I will pull them off and check the condition. Just let me know if so. Mario __________________ Mario and Mandy Hughesville, MD 20637 69 C10 305/350 71 K5 Basket case 75 K10 Rescue Parting out 77 MG Midget Parting out 15 6.7L Cummins

05-28-2003, 05:27 AM	#3
JIMs70GMC user # 2756 Join Date: Jun 2001 Location: Chesapeake, Virginia Posts: 4,612	I don't think the 2wd ones will work. __________________ 1970 K25, 8' stepside bed 350/465/205 44 up front, 60 in the rear 4.10s rolling on 33" Dunlop MTs 1986 K5, 350/465/208 Dana 60/14 bolt from a cucv 36" Super Swampers TSL/SX 1983 K20 w/ CUCV axles, 350/700R4/208 sitting on 37" Goodyears 1986 M1031 6.2 diesel, TH400/NP205 locker in the rear and a LS in the front, all stock for now..... 1986 K30, 350/400/205 dana 60 and 14 bolt. I kept the drivetrain. Body/bad and chassis are gone. 1981 K30, 350/465/205 dana 60 and dually 14 bolt. Has a G80, and a flat bed. Going to replace the flat bed. 1985 K20, 350/400/208 10 bolt and SF 14 bolt. I wonder where I can find some 1 tons. Hmmmmm

05-28-2003, 09:05 AM	#4
Erl Registered User Join Date: Mar 2002 Location: Dallas, TX Posts: 555	I bought mine at NAPA for about $90 each. __________________ 1968 GMC 305 V6 3/4 4x4 Stepside 06 Corvette Daily Driver Dallas TX

05-28-2003, 09:40 AM	#5
CPNE Resident Curmudgeon Join Date: Dec 1999 Location: NH Posts: 6,662	I can't help but I may be able to explain why this is not an easy part to locate. The 70 3/4 ton front drums are a one-year only deal, or at least thats what I was told. Something to do with the diameter of wheel studs. I think it's the only drum that uses the larger studs found on 71/72 disk brake trucks. 70 is an odd year as it was a transition year from drums to disks in both 2 and 4wd. __________________ 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

05-28-2003, 09:58 AM	#6
68 Suburban Registered User Join Date: Oct 2000 Location: From Chicago, Live in Phoenix, AZ Posts: 6,802	Wasn't it also a strike year, so there would not be as many trucks produced? This would make it not as prosperous to manufacture replacement parts? __________________ Just sitting here contemplating contemplation.

05-28-2003, 11:20 AM	#7
JIMs70GMC user # 2756 Join Date: Jun 2001 Location: Chesapeake, Virginia Posts: 4,612	erl, I'd gladly pay $90 for new ones. Jeff, the wheel studs are 1/2"(just bought lug nuts). I'm really hoping somebody upgraded their front to disc and might have good drums to sell. If anybody would be willing to lend me one drum to do a quick check would be great, I'd pay the shipping to and from my house. __________________ 1970 K25, 8' stepside bed 350/465/205 44 up front, 60 in the rear 4.10s rolling on 33" Dunlop MTs 1986 K5, 350/465/208 Dana 60/14 bolt from a cucv 36" Super Swampers TSL/SX 1983 K20 w/ CUCV axles, 350/700R4/208 sitting on 37" Goodyears 1986 M1031 6.2 diesel, TH400/NP205 locker in the rear and a LS in the front, all stock for now..... 1986 K30, 350/400/205 dana 60 and 14 bolt. I kept the drivetrain. Body/bad and chassis are gone. 1981 K30, 350/465/205 dana 60 and dually 14 bolt. Has a G80, and a flat bed. Going to replace the flat bed. 1985 K20, 350/400/208 10 bolt and SF 14 bolt. I wonder where I can find some 1 tons. Hmmmmm

05-28-2003, 01:36 PM	#8
Erl Registered User Join Date: Mar 2002 Location: Dallas, TX Posts: 555	I have a GMC Master Parts book and used the GM part number at NAPA. He typed in the GM number and the correct drum came up. Sorry but my book only goes to 1969. Maybe someone else can look it up for you. __________________ 1968 GMC 305 V6 3/4 4x4 Stepside 06 Corvette Daily Driver Dallas TX

05-28-2003, 08:10 PM	#9
JIMs70GMC user # 2756 Join Date: Jun 2001 Location: Chesapeake, Virginia Posts: 4,612	Called my local NAPA and supposedly (hopefully) they have 3 in Richmond. I go and pick-up 2 tomorrow morning from NAPA. $69 a piece. We'll see....... __________________ 1970 K25, 8' stepside bed 350/465/205 44 up front, 60 in the rear 4.10s rolling on 33" Dunlop MTs 1986 K5, 350/465/208 Dana 60/14 bolt from a cucv 36" Super Swampers TSL/SX 1983 K20 w/ CUCV axles, 350/700R4/208 sitting on 37" Goodyears 1986 M1031 6.2 diesel, TH400/NP205 locker in the rear and a LS in the front, all stock for now..... 1986 K30, 350/400/205 dana 60 and 14 bolt. I kept the drivetrain. Body/bad and chassis are gone. 1981 K30, 350/465/205 dana 60 and dually 14 bolt. Has a G80, and a flat bed. Going to replace the flat bed. 1985 K20, 350/400/208 10 bolt and SF 14 bolt. I wonder where I can find some 1 tons. Hmmmmm

05-28-2003, 08:40 PM	#10
jerry moss Born Psycho Join Date: Feb 2001 Location: brentwood,cal,usa Posts: 4,944	i have a 70 3/4 ton 4x4 front diff sitting in my back yard. if the drums from napa aren't correct, let me know and i'll measure these to make sure they're still good. we have a drum mic at work. __________________ jerry moss 72 cheyenne super K20- tilt,tach,vacuum,speedwarning,buckets,shoulder belts,am/fm,tow hooks,bumper guards,toolbox,aux. fuel tank,posi front and rear,plus other goodies!!! SOLD 69 suburban K20-tilt,tach,vacuum,speedwarning,buckets,shoulder belts,am/fm,4 inch all spring lift,4 speed, 14 bolt full floater, dana 44 HD,warn winch,posi front and rear,tow hooks,plus other goodies. 73/80 chevy/gmc K20 SB400,turbo 400,205,tilt,a-c,gas hog. 77 K/5 cheyenne blazer-daily driver/beater. SON HAS IT NOW BRENTWOOD,CALIFORNIA

05-29-2003, 06:19 AM	#11
JIMs70GMC user # 2756 Join Date: Jun 2001 Location: Chesapeake, Virginia Posts: 4,612	Jerry that would be great. I'll find out today and let you know. Thanks, Jim I should have PM'd you first! __________________ 1970 K25, 8' stepside bed 350/465/205 44 up front, 60 in the rear 4.10s rolling on 33" Dunlop MTs 1986 K5, 350/465/208 Dana 60/14 bolt from a cucv 36" Super Swampers TSL/SX 1983 K20 w/ CUCV axles, 350/700R4/208 sitting on 37" Goodyears 1986 M1031 6.2 diesel, TH400/NP205 locker in the rear and a LS in the front, all stock for now..... 1986 K30, 350/400/205 dana 60 and 14 bolt. I kept the drivetrain. Body/bad and chassis are gone. 1981 K30, 350/465/205 dana 60 and dually 14 bolt. Has a G80, and a flat bed. Going to replace the flat bed. 1985 K20, 350/400/208 10 bolt and SF 14 bolt. I wonder where I can find some 1 tons. Hmmmmm

05-29-2003, 06:30 PM	#12
JIMs70GMC user # 2756 Join Date: Jun 2001 Location: Chesapeake, Virginia Posts: 4,612	Well the NAPA brakes were too small! I need 12", the ones they had were 11" and for a 2wd not 4wd. I looked through their book (date 1988) and the 12" drums for a 70 K25 were not available. Jerry, sending you a PM. __________________ 1970 K25, 8' stepside bed 350/465/205 44 up front, 60 in the rear 4.10s rolling on 33" Dunlop MTs 1986 K5, 350/465/208 Dana 60/14 bolt from a cucv 36" Super Swampers TSL/SX 1983 K20 w/ CUCV axles, 350/700R4/208 sitting on 37" Goodyears 1986 M1031 6.2 diesel, TH400/NP205 locker in the rear and a LS in the front, all stock for now..... 1986 K30, 350/400/205 dana 60 and 14 bolt. I kept the drivetrain. Body/bad and chassis are gone. 1981 K30, 350/465/205 dana 60 and dually 14 bolt. Has a G80, and a flat bed. Going to replace the flat bed. 1985 K20, 350/400/208 10 bolt and SF 14 bolt. I wonder where I can find some 1 tons. Hmmmmm

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