4x4 3/4 ...1/2 frames the same? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

qksilver · 04-25-2005, 11:16 PM

I want to build a 3/4 burb. I have heard the GMC frame is stronger, also are the 1/2 and 3/4 the same. I know that the are same dimension but is the frame stronger on a 3/4
Thanks,
Steve

4x4Poet · 04-26-2005, 02:46 AM

I've heard that chevy & GMC 67-72 4x4 frames are identical whether 1/2 ton or 3/4 ton. AFAIK, only the axle assys and brake systems differ between 1/2 & 3/4 ton 4x4s.

Brewski* · 04-26-2005, 11:51 AM

I concure with ^

qksilver · 04-26-2005, 05:03 PM

Thanks, I didn't want to start with a 1/2, which I have if the 3/4 was stronger. Saved me some time and more important money! Around here 3/4 axle's are fairly easy to get. Now for the not easy to find uncracked 4x4 400 trans with shield and brackets................

**special-K** · 04-30-2005, 03:25 PM

Yup,same frame.What he said and heavier springs(interchangeable).

4x4Poet · 05-01-2005, 03:09 AM

Yup, forgot springs are different, at least on the rear axle. I own both 1/2 ton and 3/4 ton burbs. You'd think I'd notice every major difference.

**special-K** · 05-01-2005, 08:50 AM

I`m guessing when you have three you start taking them for granted.

qksilver · 05-01-2005, 08:58 PM

I knew the springs were different. I only have 2 1/2 burbs!

kingpelone · 05-05-2005, 12:20 AM

The cab mount kits are the same for the 4x4 and 3/4 tons. I have to agree that they would be the same frames

fde2blk · 08-15-2005, 07:53 PM

all the same

4x4Poet · 08-16-2005, 03:43 AM

Quote:

Originally Posted by fde2blk

all the same

Welcome to the party.

Why five months late?

(j/k)

4x4Poet · 08-16-2005, 03:48 AM

BTW, now that I have a '72 K20 pickup, I noticed that the single, top-mounted, overhanging frame bracket for the oem exhaust hanger is farther to the rear on the pickup's frame than on my'71 K10 burb's frame. On the burb, the bracket is near the transfer case. On the pickup, it is near the rear spring eye (foward of the rear springs). I'm talking oem single exhaust on the drivers side, of course.

First difference I've noticed between pickup frames and burb frames. Anyone have a pickup and a burb that they can take a look at one day this week?

fde2blk · 08-17-2005, 04:50 PM

just found site exists didnt check dates no time for time

04-25-2005, 11:16 PM	#1
qksilver Senior Member Join Date: Dec 2004 Location: Southern Pines NC Posts: 3,853	4x4 3/4 ...1/2 frames the same? I want to build a 3/4 burb. I have heard the GMC frame is stronger, also are the 1/2 and 3/4 the same. I know that the are same dimension but is the frame stronger on a 3/4 Thanks, Steve

04-26-2005, 02:46 AM	#2
4x4Poet Registered User Join Date: Nov 2004 Location: "Under Montana skies." Posts: 1,836	I've heard that chevy & GMC 67-72 4x4 frames are identical whether 1/2 ton or 3/4 ton. AFAIK, only the axle assys and brake systems differ between 1/2 & 3/4 ton 4x4s. __________________ '71 GMC K20 Suburban, '71 GMC K10 Suburban, '72 Chevy C10 CST Suburban, '72 Chevy K20 clunker pickup.

04-30-2005, 03:25 PM	#5
special-K Special Order Join Date: Nov 2004 Location: Mt Airy, MD Posts: 85,852	Yup,same frame.What he said and heavier springs(interchangeable). __________________ "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 ~

05-01-2005, 03:09 AM	#6
4x4Poet Registered User Join Date: Nov 2004 Location: "Under Montana skies." Posts: 1,836	Yup, forgot springs are different, at least on the rear axle. I own both 1/2 ton and 3/4 ton burbs. You'd think I'd notice every major difference. __________________ '71 GMC K20 Suburban, '71 GMC K10 Suburban, '72 Chevy C10 CST Suburban, '72 Chevy K20 clunker pickup. Last edited by 4x4Poet; 05-01-2005 at 03:10 AM.

05-01-2005, 08:50 AM	#7
special-K Special Order Join Date: Nov 2004 Location: Mt Airy, MD Posts: 85,852	I`m guessing when you have three you start taking them for granted. __________________ "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 ~

04-26-2005, 11:51 AM	#3
Brewski* Registered User Join Date: Aug 2001 Location: Rocky Mount, MO Posts: 1,293	I concure with ^

04-26-2005, 05:03 PM	#4
qksilver Senior Member Join Date: Dec 2004 Location: Southern Pines NC Posts: 3,853	Thanks, I didn't want to start with a 1/2, which I have if the 3/4 was stronger. Saved me some time and more important money! Around here 3/4 axle's are fairly easy to get. Now for the not easy to find uncracked 4x4 400 trans with shield and brackets................

05-01-2005, 08:58 PM	#8
qksilver Senior Member Join Date: Dec 2004 Location: Southern Pines NC Posts: 3,853	I knew the springs were different. I only have 2 1/2 burbs!

05-05-2005, 12:20 AM	#9
kingpelone Registered User Join Date: Mar 2005 Posts: 18	3/4 vs 4x4 The cab mount kits are the same for the 4x4 and 3/4 tons. I have to agree that they would be the same frames

08-15-2005, 07:53 PM	#10
fde2blk Registered User Join Date: Aug 2005 Location: wa Posts: 25	all the same

08-16-2005, 03:48 AM	#12
4x4Poet Registered User Join Date: Nov 2004 Location: "Under Montana skies." Posts: 1,836	BTW, now that I have a '72 K20 pickup, I noticed that the single, top-mounted, overhanging frame bracket for the oem exhaust hanger is farther to the rear on the pickup's frame than on my'71 K10 burb's frame. On the burb, the bracket is near the transfer case. On the pickup, it is near the rear spring eye (foward of the rear springs). I'm talking oem single exhaust on the drivers side, of course. First difference I've noticed between pickup frames and burb frames. Anyone have a pickup and a burb that they can take a look at one day this week? __________________ '71 GMC K20 Suburban, '71 GMC K10 Suburban, '72 Chevy C10 CST Suburban, '72 Chevy K20 clunker pickup.

08-17-2005, 04:50 PM	#13
fde2blk Registered User Join Date: Aug 2005 Location: wa Posts: 25	just found site exists didnt check dates no time for time

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