my new /old 72 - The 1947 - Present Chevrolet & GMC Truck Message Board Network

**70CHEVYBB** · 07-17-2012, 11:52 PM

I picked up my 72 lwb on sunday. I found it local for 800.00. I must say it is rough. I bought it for a winter truck and a doner truck. I will not be getting my 70 done in time so I bought the 72. It has power disc brakes,good bumpers,4 core radiator and a good bench seat that will all go to the 70. I am interested in swaping the rear axles also. I have read that the 72's axles are 1/32 longer that the 70's will they still fit in the 70's housing?

**RenoKeene** · 07-18-2012, 11:09 AM

Great price for a donor, you might be suprised at how much stuff you end up using from that truck. Congrats.

gcburdic · 07-19-2012, 12:54 PM

actually 72 rearend will be 1.5" wider than your 70 axle, BUT pending on your 70 rear, some of the late 70 rears were the same width as the 71/72....best thing to do is measure from backing plate to backing plate to verify...just swap the 71/72 rearend in and swap that 71/72 x-member in the front of your 70 and now you have a 5 lugger

**70CHEVYBB** · 07-19-2012, 01:37 PM

I would really like to just swap spindles as I have already blasted,painted and installed the x member. I would also just like to swap axle shafts only. The lmc book says the the 72 axle shaft is 1/32 (.032) longer than the 70 axle shaft. I just need to know If I can just swap the shafts?????
I will measure backing plate width tonight.
Thanks, Wes

gcburdic · 07-20-2012, 09:32 AM

Changing the spindles is fine, grab the center drag link, tie rods, and adjuster (which I assume you'll replace) and I believe you'll have to change the ball joints too....What did ya get for the measurement??.....I believe if it's the narrow 70 rear, the axles will not fit...I changed the whole rear unless there's something special about the 70 rear....Early Classic Enterprises carries the replacement axles to change to 5 lug and keep the 70 rear

This is great info that member lolife99 put together about suspension swaps....read and I hope it helps....http://67-72chevytrucks.com/vboard/s...d.php?t=444823

**70CHEVYBB** · 07-20-2012, 12:45 PM

both rear ends measure 64" from flange to flange. I will just be swaping axles. I don't think there is any plus's in swaping the whole rear ends.

gcburdic · 07-22-2012, 08:31 PM

gear ratio?

**70CHEVYBB** · 07-22-2012, 08:38 PM

I havent checked but I will . I had to pull the tan k out today to clean the inside. When I got it out it had a hole in it. I put the tank out of my 70 in it.

07-17-2012, 11:52 PM	#1
70CHEVYBB Senior Member Join Date: Feb 2012 Location: chillicothe, illinois Posts: 690	my new /old 72 I picked up my 72 lwb on sunday. I found it local for 800.00. I must say it is rough. I bought it for a winter truck and a doner truck. I will not be getting my 70 done in time so I bought the 72. It has power disc brakes,good bumpers,4 core radiator and a good bench seat that will all go to the 70. I am interested in swaping the rear axles also. I have read that the 72's axles are 1/32 longer that the 70's will they still fit in the 70's housing? Attached Images Last edited by 70CHEVYBB; 07-18-2012 at 12:14 AM.

07-18-2012, 11:09 AM	#2
RenoKeene Florida Edition Join Date: Oct 2010 Location: Fruitland Park, FL Posts: 4,029	Re: my new /old 72 Great price for a donor, you might be suprised at how much stuff you end up using from that truck. Congrats. __________________ 70 GMC Short Stepside "Rose"-An American Beauty: Factory 402/TH400, AM/FM, AC, Tilt, Tach, Buckets, Posi, PS, PB, 3-5 Drop, Complete Resto-Rod 67 C-20 Slant Back Wrecker "Mad Max" 67 C-10 Ratrod "Step-N-Wolf" 71 Serro Scotty Sportsman camper "Scotty" 97 LT1 Z28 "The Hornet" Link to more pics of "Rose" http://67-72chevytrucks.com/vboard/a...p?albumid=1684 Check out my "Cheap Tricks" thread and add to it if you can, lots of good info there. http://67-72chevytrucks.com/vboard/s...d.php?t=489394

07-19-2012, 12:54 PM	#3
gcburdic Restoration Virgin! Join Date: Jan 2008 Location: Huntersville, NC Posts: 8,298	Re: my new /old 72 actually 72 rearend will be 1.5" wider than your 70 axle, BUT pending on your 70 rear, some of the late 70 rears were the same width as the 71/72....best thing to do is measure from backing plate to backing plate to verify...just swap the 71/72 rearend in and swap that 71/72 x-member in the front of your 70 and now you have a 5 lugger __________________ Geoff with a G 1968 Chevy C10 SWB The Mistress 1972 Custom Deluxe C20 Suburban A Suburban Named Isabella 1966 Ford Mustang Mama's High School Graduation Present

07-19-2012, 01:37 PM	#4
70CHEVYBB Senior Member Join Date: Feb 2012 Location: chillicothe, illinois Posts: 690	Re: my new /old 72 I would really like to just swap spindles as I have already blasted,painted and installed the x member. I would also just like to swap axle shafts only. The lmc book says the the 72 axle shaft is 1/32 (.032) longer than the 70 axle shaft. I just need to know If I can just swap the shafts????? I will measure backing plate width tonight. Thanks, Wes

07-20-2012, 09:32 AM	#5
gcburdic Restoration Virgin! Join Date: Jan 2008 Location: Huntersville, NC Posts: 8,298	Re: my new /old 72 Changing the spindles is fine, grab the center drag link, tie rods, and adjuster (which I assume you'll replace) and I believe you'll have to change the ball joints too....What did ya get for the measurement??.....I believe if it's the narrow 70 rear, the axles will not fit...I changed the whole rear unless there's something special about the 70 rear....Early Classic Enterprises carries the replacement axles to change to 5 lug and keep the 70 rear This is great info that member lolife99 put together about suspension swaps....read and I hope it helps....http://67-72chevytrucks.com/vboard/s...d.php?t=444823 __________________ Geoff with a G 1968 Chevy C10 SWB The Mistress 1972 Custom Deluxe C20 Suburban A Suburban Named Isabella 1966 Ford Mustang Mama's High School Graduation Present

07-20-2012, 12:45 PM	#6
70CHEVYBB Senior Member Join Date: Feb 2012 Location: chillicothe, illinois Posts: 690	Re: my new /old 72 both rear ends measure 64" from flange to flange. I will just be swaping axles. I don't think there is any plus's in swaping the whole rear ends.

07-22-2012, 08:31 PM	#7
gcburdic Restoration Virgin! Join Date: Jan 2008 Location: Huntersville, NC Posts: 8,298	Re: my new /old 72 gear ratio? __________________ Geoff with a G 1968 Chevy C10 SWB The Mistress 1972 Custom Deluxe C20 Suburban A Suburban Named Isabella 1966 Ford Mustang Mama's High School Graduation Present

07-22-2012, 08:38 PM	#8
70CHEVYBB Senior Member Join Date: Feb 2012 Location: chillicothe, illinois Posts: 690	Re: my new /old 72 I havent checked but I will . I had to pull the tan k out today to clean the inside. When I got it out it had a hole in it. I put the tank out of my 70 in it.



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