Are all frames the same? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

eric67m · 10-27-2009, 11:18 PM

I have a 67 k10. I am going to be swapping to a newer frame. I believe it is a 72. The vin is 2ZXXXXXX (72, fremont, # built). The frame has an 8 lug dana 44 open disk front and an incorrect width dana 60 temporarly in back.

I am wondering how to tell the differences in 1/2 or 3/4 ton frames, springs. or what is the difference if any?

Thanks

Chevy1TonFun · 10-28-2009, 12:11 AM

I've heard that the 1/2 and 3/4 has different cab mount locations. I also think that the 3/4 frame is build stronger.

eric67m · 10-28-2009, 07:21 AM

I believe all cabs were the same, but the 4x4 mounts and 3/4t are different than the 1/2t rubber mounts.

I was wondering if the frames were built from bigger channel on 3/4t and if you can tell spring differences by leaf counts.

I am wondering if this is a 1/2t frame and springs with 3/4t axles. Im totally ok with that, I just want to know what it is.

duallyjams · 10-28-2009, 08:00 AM

The 72 frame is better.
1) the front springs are the same,both can have two or three spring pack.
2) the rear will have a bigger spring back and some will have a steel factory lift block
3) the 72 frame should have factory extra bracing for the steering box
4) the channel are the same only 1 ton cab and chassis has a bigger channel for the frame
there might be other parts that are different but this is what I know

10-27-2009, 11:18 PM	#1
eric67m Registered User Join Date: Apr 2005 Location: Monroe, WA Posts: 298	Are all frames the same? I have a 67 k10. I am going to be swapping to a newer frame. I believe it is a 72. The vin is 2ZXXXXXX (72, fremont, # built). The frame has an 8 lug dana 44 open disk front and an incorrect width dana 60 temporarly in back. I am wondering how to tell the differences in 1/2 or 3/4 ton frames, springs. or what is the difference if any? Thanks __________________ 67 K10, lwb, fleetside, 327, 4spd, 205, cab and 3/4 frame swap, 14 bolt, big window, and a "rustoleum roll job"

10-28-2009, 12:11 AM	#2
Chevy1TonFun Grease Monkey Join Date: Oct 2007 Location: Fresno CA Posts: 750	Re: Are all frames the same? I've heard that the 1/2 and 3/4 has different cab mount locations. I also think that the 3/4 frame is build stronger. __________________ Tow Rig: 2012 Chevy 2500HD CCSB LTZ Z71 4x4 Duramax Ultimate Offroad Build: 1978 Chevy Silverado K30 Crewcab Build Link http://67-72chevytrucks.com/vboard/s...d.php?t=654053 Mud Truck: 1972 Chevy Cheyenne K30 4x4, 468/400/205, D60/D70HD, 18" Custom Lift, 17x39" IROKs FOR SALE http://67-72chevytrucks.com/vboard/c...ton-4x4&cat=12

10-28-2009, 07:21 AM	#3
eric67m Registered User Join Date: Apr 2005 Location: Monroe, WA Posts: 298	Re: Are all frames the same? I believe all cabs were the same, but the 4x4 mounts and 3/4t are different than the 1/2t rubber mounts. I was wondering if the frames were built from bigger channel on 3/4t and if you can tell spring differences by leaf counts. I am wondering if this is a 1/2t frame and springs with 3/4t axles. Im totally ok with that, I just want to know what it is. __________________ 67 K10, lwb, fleetside, 327, 4spd, 205, cab and 3/4 frame swap, 14 bolt, big window, and a "rustoleum roll job"

10-28-2009, 08:00 AM	#4
duallyjams Registered User Join Date: May 2007 Location: Deale Md Posts: 4,663	Re: Are all frames the same? The 72 frame is better. 1) the front springs are the same,both can have two or three spring pack. 2) the rear will have a bigger spring back and some will have a steel factory lift block 3) the 72 frame should have factory extra bracing for the steering box 4) the channel are the same only 1 ton cab and chassis has a bigger channel for the frame there might be other parts that are different but this is what I know __________________ James 63 GMC V6 4speed carryall 65 chevy swb bbw V8 auto 68 K20 327/4 speed, buddy buckets 2002 GMC CC Dually Duramax 64 GMC lwb 3/4 V6 4speed SOLD 66 GMC swb bbw buddy buckets SOLD IG duallyjams The only thing that stays the same is constant change!



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