Frame question - The 1947 - Present Chevrolet & GMC Truck Message Board Network

07lbz2500 · 07-23-2009, 08:11 AM

I am doing a 4x4 conversion on my 69. It had coils in the rear. My question is are the frames the same on a 2wd whether it is a coil or leaf truck (meaning do the both have the bump out over the axle)? If this is the case I should be able to use the stock spring hangers off of a 2wd leaf truck instead of making my own. thanks

**jerry moss** · 07-23-2009, 09:12 AM

you can use leaf hangers off a 2wd on your coil frame BUT if you are going to use a rear diff from a 67-72 4wd truck, you will have to move the spring pads on the axle housing. a 73 up diff will be a direct bolt in except for one shock mount.

07lbz2500 · 07-23-2009, 09:25 AM

I am using a 14bolt out of a 75 so i shouldnt have to move the perches. Does anyone know where i can get these spring hangers and shackle mounts.

Gene · 07-23-2009, 04:45 PM

Quote:

Originally Posted by 07lbz2500

I am using a 14bolt out of a 75 so i shouldnt have to move the perches. Does anyone know where i can get these spring hangers and shackle mounts.

I am converting a 71 Chevy w/coils tp 4wd also, I have been looking for aftermarket brackets for awhile now, I gave up and found a board member that had a 2wd GMC with leafs that was willing to sell just the brackets off of, these should be a direct bolt on after some centering and hole drilling. Then you should be able to use any 52 inch leafs as long as they are the right width.

**jerry moss** · 07-23-2009, 07:40 PM

just hit pick-n-pull and cut them off a 73 on up truck so you can get a better choice of rear leaf springs. if i remember correctly, 67-72 chevy/gmc 2wd's only had 2" wide leaf springs where the 4x4s had 2 1/2" as did all 73 on up. someone correct me if i'm wrong.

martindc1 · 07-23-2009, 03:41 PM

I recently saw a converted truck where the guy used the 73 up spring hangers and shackle mounts and it looked pretty good, although he had them bolted on a little bit too far downward for my tastes.

Keep us up to date on your conversion, as I am kind of interested in something similar for my 72.

skchevota · 07-24-2009, 12:38 AM

Mine was a leaf truck, it had the coil bump outs as well. It had 2 1/2 " leafs but I converted to Super duty ford rear leafs and stock ford front hangers. I had ford rear hangers but I later made my one so I could do a shakle flip. The ford hangers had the same offset as the chevys so I did not have to relocate my spring pads.

07lbz2500 · 07-24-2009, 10:08 AM

I have a set of hangers off of an 83 but there is a problem with using them. on those trucks the frame is straight where the front hanger mounts(like the 67-72 4x4's). Since the 2wd leaf trucks have the same frame as the coil trucks I figured they would mount right up to the frame since they bolt on where the frame is starting to bump. Skchevota did you modify the ford front mounts to fit the frame? Would you happen to have any pictures of the front hanger.

thanks

07-23-2009, 08:11 AM	#1
07lbz2500 Registered User Join Date: May 2008 Location: pittsburgh. PA Posts: 13	Frame question I am doing a 4x4 conversion on my 69. It had coils in the rear. My question is are the frames the same on a 2wd whether it is a coil or leaf truck (meaning do the both have the bump out over the axle)? If this is the case I should be able to use the stock spring hangers off of a 2wd leaf truck instead of making my own. thanks

07-23-2009, 09:12 AM	#2
jerry moss Born Psycho Join Date: Feb 2001 Location: brentwood,cal,usa Posts: 4,936	Re: Frame question you can use leaf hangers off a 2wd on your coil frame BUT if you are going to use a rear diff from a 67-72 4wd truck, you will have to move the spring pads on the axle housing. a 73 up diff will be a direct bolt in except for one shock mount. __________________ 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

07-23-2009, 09:25 AM	#3
07lbz2500 Registered User Join Date: May 2008 Location: pittsburgh. PA Posts: 13	Re: Frame question I am using a 14bolt out of a 75 so i shouldnt have to move the perches. Does anyone know where i can get these spring hangers and shackle mounts.

07-23-2009, 07:40 PM	#5
jerry moss Born Psycho Join Date: Feb 2001 Location: brentwood,cal,usa Posts: 4,936	Re: Frame question just hit pick-n-pull and cut them off a 73 on up truck so you can get a better choice of rear leaf springs. if i remember correctly, 67-72 chevy/gmc 2wd's only had 2" wide leaf springs where the 4x4s had 2 1/2" as did all 73 on up. someone correct me if i'm wrong. __________________ 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

07-23-2009, 03:41 PM	#6
martindc1 Registered User Join Date: Jul 2009 Location: La Crosse, WI Posts: 218	Re: Frame question I recently saw a converted truck where the guy used the 73 up spring hangers and shackle mounts and it looked pretty good, although he had them bolted on a little bit too far downward for my tastes. Keep us up to date on your conversion, as I am kind of interested in something similar for my 72. __________________ Currently truckless, previous trucks: 67 K20, 87 K10 aka V10 & 72 C10

07-24-2009, 12:38 AM	#7
skchevota Registered User Join Date: Oct 2006 Location: Evans, Colorado Posts: 530	Re: Frame question Mine was a leaf truck, it had the coil bump outs as well. It had 2 1/2 " leafs but I converted to Super duty ford rear leafs and stock ford front hangers. I had ford rear hangers but I later made my one so I could do a shakle flip. The ford hangers had the same offset as the chevys so I did not have to relocate my spring pads.

07-24-2009, 10:08 AM	#8
07lbz2500 Registered User Join Date: May 2008 Location: pittsburgh. PA Posts: 13	Re: Frame question I have a set of hangers off of an 83 but there is a problem with using them. on those trucks the frame is straight where the front hanger mounts(like the 67-72 4x4's). Since the 2wd leaf trucks have the same frame as the coil trucks I figured they would mount right up to the frame since they bolt on where the frame is starting to bump. Skchevota did you modify the ford front mounts to fit the frame? Would you happen to have any pictures of the front hanger. thanks



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