72 Eaton Rear Axle ? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

My Boy's Toy · 06-05-2005, 02:49 PM

The truck came with a no spin rear end. Can anybody tell me if this is what I have? Here are some pics, it has 4-10 gears. Any information on this rear end would be helpful.

**tnblazerk5** · 06-05-2005, 04:53 PM

looks like a nospin to me cause theres no spider gears visible ! but have never had a eaton apart so dont really know

BobS · 06-05-2005, 08:46 PM

That's a No-Spin. Congrats!

Bob

**JIMs70GMC** · 06-05-2005, 09:02 PM

Looks like the one in my garage. (no spin that is)

My Boy's Toy · 06-05-2005, 09:10 PM

Thanks for all your help , can you still buy new brake drums or is there a way to fab disc brakes?
Paul

**JIMs70GMC** · 06-05-2005, 09:14 PM

There is a way to fab disc brakes, basically use brackets designed for a 14BFF(less than 100), 3/4 ton 4wd front rotors(71+), calipers for same, brake hoses for a 79 chevette. of course if you want your e-brake to work you'll need 78-79 eldorado calipers or something like that.

My Boy's Toy · 06-05-2005, 09:27 PM

Jim do you have that setup on yours , Jest woundering how well they work. i'm not worried about the parking brake . A cousin put a microswitch in the brake lines of his grain truck,flip a switch & push on the brake peddel to set. He said it works very well.
Thanks Paul

**JIMs70GMC** · 06-06-2005, 05:53 AM

Not yet but that's the plan. I've been looking at different manufacturer's caliper brackets. I already have the rotors/calipers. Just need the brackets and brake lines. Budweis put a kit from Blackbird's on his eaton axle. He likes it. What you have to watch for is the 70 and earlier axles have 1/2" studs, the 71 and newer rotors need 9/16" studs.

My Boy's Toy · 06-06-2005, 06:51 AM

Thank's Jim for your help
Paul

Americanrider · 06-10-2005, 02:38 AM

Quote:

Originally Posted by My Boy's Toy

Jim do you have that setup on yours , Jest woundering how well they work. i'm not worried about the parking brake . A cousin put a microswitch in the brake lines of his grain truck,flip a switch & push on the brake peddel to set. He said it works very well.
Thanks Paul

I'd like to hear & see more about that setup with the microswitch.

**special-K** · 06-12-2005, 09:21 AM

Is it a line-lock as used in tow trucks?That`s what I would use.Great for winching and "very" trustworthy,if your brakes work.

My Boy's Toy · 06-12-2005, 07:08 PM

yes , it's a electric line lock. his locks up all 4 brakes, you need power to lock & unlock them. I'll try to get more info. this week , Paul

4x4Poet · 06-13-2005, 12:14 AM

I'd still try to have a strong e-brake. Line locks won't stop the truck if the brake hydraulics give out. Why not both?

06-05-2005, 02:49 PM	#1
My Boy's Toy Registered User Join Date: Dec 2001 Location: West Unity, OH, USA Posts: 235	72 Eaton Rear Axle ? The truck came with a no spin rear end. Can anybody tell me if this is what I have? Here are some pics, it has 4-10 gears. Any information on this rear end would be helpful. Attached Images

06-05-2005, 08:46 PM	#3
BobS Senior Member Join Date: May 2001 Location: West Central Minnesota Posts: 569	That's a No-Spin. Congrats! Bob __________________ V-6....only GMC Trucks have it! 62 GMC W5000 NAPCO-V6 65 GMC 2500 NAPCO Panel-V6 66 GMC 1000-V6 66 GMC 1500-V6 67 GMC K1500-SBC (originally a KM-V6) 68 GMC C1500-V6 68 GMC C1500-V6 68 GMC Suburban C2500 70 Chevy K20-SBC 71 Chevy C30 Longhorn-SBC 72 GMC Suburban C1500-BBC 72 Chevy C10-SBC 72 GMC C5500-ToroFlow Diesel

06-05-2005, 09:02 PM	#4
JIMs70GMC user # 2756 Join Date: Jun 2001 Location: Chesapeake, Virginia Posts: 4,612	Looks like the one in my garage. (no spin that is) __________________ 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

06-05-2005, 09:14 PM	#6
JIMs70GMC user # 2756 Join Date: Jun 2001 Location: Chesapeake, Virginia Posts: 4,612	There is a way to fab disc brakes, basically use brackets designed for a 14BFF(less than 100), 3/4 ton 4wd front rotors(71+), calipers for same, brake hoses for a 79 chevette. of course if you want your e-brake to work you'll need 78-79 eldorado calipers or something like that. __________________ 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

06-06-2005, 05:53 AM	#8
JIMs70GMC user # 2756 Join Date: Jun 2001 Location: Chesapeake, Virginia Posts: 4,612	Not yet but that's the plan. I've been looking at different manufacturer's caliper brackets. I already have the rotors/calipers. Just need the brackets and brake lines. Budweis put a kit from Blackbird's on his eaton axle. He likes it. What you have to watch for is the 70 and earlier axles have 1/2" studs, the 71 and newer rotors need 9/16" studs. __________________ 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

06-05-2005, 04:53 PM	#2
tnblazerk5 User #12137 Join Date: Apr 2004 Location: kingsport,upper east tenn Posts: 11,598	looks like a nospin to me cause theres no spider gears visible ! but have never had a eaton apart so dont really know

06-05-2005, 09:10 PM	#5
My Boy's Toy Registered User Join Date: Dec 2001 Location: West Unity, OH, USA Posts: 235	Thanks for all your help , can you still buy new brake drums or is there a way to fab disc brakes? Paul

06-05-2005, 09:27 PM	#7
My Boy's Toy Registered User Join Date: Dec 2001 Location: West Unity, OH, USA Posts: 235	Jim do you have that setup on yours , Jest woundering how well they work. i'm not worried about the parking brake . A cousin put a microswitch in the brake lines of his grain truck,flip a switch & push on the brake peddel to set. He said it works very well. Thanks Paul

06-06-2005, 06:51 AM	#9
My Boy's Toy Registered User Join Date: Dec 2001 Location: West Unity, OH, USA Posts: 235	Thank's Jim for your help Paul

06-12-2005, 09:21 AM	#11
special-K Special Order Join Date: Nov 2004 Location: Mt Airy, MD Posts: 85,851	Is it a line-lock as used in tow trucks?That`s what I would use.Great for winching and "very" trustworthy,if your brakes work. __________________ "BUILDING A BETTER WAY TO SERVE THE USA"......67/72......"The New Breed" GMC '67 C1500 Wideside Super Custom SWB: 327/M22/3.42 posi.........."The '67" (project) GMC '72 K2500 Wideside Sierra Custom Camper: 350/TH350/4.10 Power-Lok..."The '72" (rolling) Tim "Don't call me a redneck. I'm a rough cut country gentleman" R.I.P. ~ East Side Low Life ~ El Jay ~ 72BLUZ ~ Fasteddie69 ~ Ron586 ~ 67ChevyRedneck ~ Grumpy Old Man ~

06-12-2005, 07:08 PM	#12
My Boy's Toy Registered User Join Date: Dec 2001 Location: West Unity, OH, USA Posts: 235	yes , it's a electric line lock. his locks up all 4 brakes, you need power to lock & unlock them. I'll try to get more info. this week , Paul

06-13-2005, 12:14 AM	#13
4x4Poet Registered User Join Date: Nov 2004 Location: "Under Montana skies." Posts: 1,836	I'd still try to have a strong e-brake. Line locks won't stop the truck if the brake hydraulics give out. Why not both? __________________ '71 GMC K20 Suburban, '71 GMC K10 Suburban, '72 Chevy C10 CST Suburban, '72 Chevy K20 clunker pickup.



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