Bumper Brackets-Whats the difference between 2 and 4 wd? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

1969k10stepside · 07-07-2007, 11:39 PM

My 71 didnt have any outer bumper brackets or the correct bumper for that matter (Had a 67-70 bumper on it).I found some 71-72 outer brackets in the shed but they are 2wd.My question is,what is different between the 2 and 4wd brackets and can the 2wd ones be modified to work on my 4wd?

JimKshortstep4x4 · 07-09-2007, 05:14 AM

I suppose modifying 2 wd brackets to 4 wd brackets can be done but with the different ends and angles it may be difficult. My suggestion would be to get some 70 or older 4 wd outer brackets and lengthen them by adding a 2" channel in the middle.

I was unable to locate 4 wd brackets for my 71 so I lengthened a set of the older brackets and they fit very well.

Let me know if you want any more detail on how it was done.

Jim

**special-K** · 07-09-2007, 06:13 AM

The 4wd brackets give better traction...Looks like jim set you straight.

07-07-2007, 11:39 PM	#1
1969k10stepside Registered User Join Date: Mar 2006 Location: USA Posts: 21,019	Bumper Brackets-Whats the difference between 2 and 4 wd? My 71 didnt have any outer bumper brackets or the correct bumper for that matter (Had a 67-70 bumper on it).I found some 71-72 outer brackets in the shed but they are 2wd.My question is,what is different between the 2 and 4wd brackets and can the 2wd ones be modified to work on my 4wd? Last edited by 1969k10stepside; 07-07-2007 at 11:40 PM.

07-09-2007, 05:14 AM	#2
JimKshortstep4x4 Senior Member Join Date: Jul 2001 Location: Muskegon,MI,USA Posts: 6,026	Re: Bumper Brackets-Whats the difference between 2 and 4 wd? I suppose modifying 2 wd brackets to 4 wd brackets can be done but with the different ends and angles it may be difficult. My suggestion would be to get some 70 or older 4 wd outer brackets and lengthen them by adding a 2" channel in the middle. I was unable to locate 4 wd brackets for my 71 so I lengthened a set of the older brackets and they fit very well. Let me know if you want any more detail on how it was done. Jim __________________ 1971 Shortbox step side 4x4, 350 sbc, 3:07 rear end 1965 Impala SS 400 sbc, Muncie rock crusher 1966 Impala SS 396 bbc, TH 400 1969 El Camino, 350 sbc, TH 350 1971 Snowplow built on a Blazer frame 1972 GMC Short bed, stepside, TH 400, 427 BBC

07-09-2007, 06:13 AM	#3
special-K Special Order Join Date: Nov 2004 Location: Mt Airy, MD Posts: 85,851	Re: Bumper Brackets-Whats the difference between 2 and 4 wd? The 4wd brackets give better traction...Looks like jim set you straight. __________________ "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 ~ Last edited by special-K; 07-09-2007 at 06:13 AM.

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