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

68Bowtie4x4 · 10-14-2003, 10:58 AM

I'm wanting to know if the 67-72 Chevy 4x4 1/2 ton front and rearends can be swapped out with 73-up 1/2 ton front and rearends? Do they have the same spring pad width? Is there any difference in the lower shock mounts? I know the pinion yokes are different and would require an offset u-joint, but need more info. I'm trading my 89 K5 lifted Blazer for a 68 Chevy SWB 4x4 pickup and it has 5.13 gears front and rear with detroit lockers in each rearend. I want to go to 4.10's, but want to know what my options are.

Thanks for the help,
Doug

krue · 10-14-2003, 01:03 PM

I can't help with your question, but I am sure you will find it on here!

Welcome to the board from South Mississippi!

crazy longhorn · 10-14-2003, 06:44 PM

C to C on the spring pads on the longhorns, 1 tons, & 4x4s should be 40"(67-72). the width on the 73 up trucks diff will work, but the spring pads need to be relocated(I think they are 42 1/2" center to center. The later (73 up ) 1 tons should still have the 40" C toC on the pads.....that doesnt help much tho unless you want a duallie. you will also need to relocate the shock mounts, as the 73 up are fore & aft. Good luck,crazyL

10-14-2003, 10:58 AM	#1
68Bowtie4x4 Registered User Join Date: Oct 2003 Location: Athena, Oregon Posts: 167	Chevy rearend question I'm wanting to know if the 67-72 Chevy 4x4 1/2 ton front and rearends can be swapped out with 73-up 1/2 ton front and rearends? Do they have the same spring pad width? Is there any difference in the lower shock mounts? I know the pinion yokes are different and would require an offset u-joint, but need more info. I'm trading my 89 K5 lifted Blazer for a 68 Chevy SWB 4x4 pickup and it has 5.13 gears front and rear with detroit lockers in each rearend. I want to go to 4.10's, but want to know what my options are. Thanks for the help, Doug __________________ 72 Chevy Cheyenne K10 4x4 LWB, 4" lift kit, 350/350/NP205, rebuild in progress.

10-14-2003, 01:03 PM	#2
krue Designated A-hole! Join Date: Mar 2003 Location: South Mississippi Posts: 36,448	I can't help with your question, but I am sure you will find it on here! Welcome to the board from South Mississippi! __________________ "If it ain't broke, fix it 'til it is!" Being stupid ain't illegal. We're Still Debt Free Except for the House!!! www.daveramsey.com 70 GMC SWB Stepside project "Green Booger" soon to be 6.0l/4l80e 93 S-10 "Poppaw's Truck"

10-14-2003, 06:44 PM	#3
crazy longhorn Fabricate till you "puke" Join Date: Jun 2002 Location: Ill Posts: 9,402	C to C on the spring pads on the longhorns, 1 tons, & 4x4s should be 40"(67-72). the width on the 73 up trucks diff will work, but the spring pads need to be relocated(I think they are 42 1/2" center to center. The later (73 up ) 1 tons should still have the 40" C toC on the pads.....that doesnt help much tho unless you want a duallie. you will also need to relocate the shock mounts, as the 73 up are fore & aft. Good luck,crazyL __________________ 69 longhorn,4" chop,3/5 drop, 1/2 ton suspension/disc brakes,1 1/2" body drop,steel tilt clip, 5.3/Edelbrock rpm intake/600 carb, Hooker streetrod shorties,2 1/2" exhaust/ H pipe/50's Flows , 6 spd Richmond trans,12 bolt/ 3.40 gears....

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