1/2T 3/4T and 1T swapping - The 1947 - Present Chevrolet & GMC Truck Message Board Network

pig rig · 02-23-2009, 06:51 PM

I see this question asked a lot on truck boards.
"are the 1T front suspension the same as the 1/2T or 3/4T same as the 1T?"
I'm not a guru but I have played with interchanging the 73-87 chev's front ends a little bit, so I hope I can help out those that don't have the parts resorce to figure out what works and dosn't.

ok....... follow along

3/4T spindles are different then the 1T srw and the differance is how the brake calipper mounts
but 1T spindles are the same for srw and drw trucks
3/4T rotors are not the same as 1T swr rotors and drw rotors are different then both
1T srw and 1T drw calippers are the same and 3/4T is different
woo....

ok, balljonts are the same for 3/4T as for 1T srw and drw
and arms are the same for 3/4T and 1T

and none of this stuff interchanges with a 1/2T
but the 1/2T crossmember is the same as the 1T and 3/4T so with 1/2T A arms and spindles you can swap your 3/4T &1T to a 1/2T
now! with that saidI know the 4wd interchange question is going to come up. and the only thing I know about 4wds is you can part them out to fat'n up your wallet. and thats all I want to know!

b454rat · 02-23-2009, 10:37 PM

Can't comment on 2wds, I don't mess with them anymore.

As for 4wd, just aboot everything is interchangable, depending of course....

**lolife99** · 02-23-2009, 11:02 PM

Thanks for the info Pig Rig.
Have you ever used ECE's "3/4 ton to 1/2 ton conversion" spindles to put 1/2 ton brakes on a crew cab? These should allow you to keep all of your 3/4 ton or 1 ton a-arms, ball joints, and tie rod ends. I just don't know of anyone that has tried it. I may have to be the first with my '89 srw 1 ton crew cab.

Storm Chaser · 02-24-2009, 10:38 AM

Quote:

Have you ever used ECE's "3/4 ton to 1/2 ton conversion" spindles to put 1/2 ton brakes on a crew cab?

Pardon me for asking... but why would you want to put less heavier duty brakes on than what it came with, especially on a big ole crew? I'm not being a smartazz, just trying to learn something, that's all.

**lolife99** · 02-24-2009, 10:56 AM

I'm building a 1/2 ton shortbed crew cab.

pig rig · 02-25-2009, 02:50 AM

lolife99 I've never looked into the ece set up but if you have a bearings dist. around your area, you could do a little research and save your self some big money I bet

the chev 1/2T bearing and race is pertty comen set in the industral setting

02-23-2009, 06:51 PM	#1
pig rig Registered User Join Date: Feb 2009 Location: washington the state Posts: 730	1/2T 3/4T and 1T swapping I see this question asked a lot on truck boards. "are the 1T front suspension the same as the 1/2T or 3/4T same as the 1T?" I'm not a guru but I have played with interchanging the 73-87 chev's front ends a little bit, so I hope I can help out those that don't have the parts resorce to figure out what works and dosn't. ok....... follow along 3/4T spindles are different then the 1T srw and the differance is how the brake calipper mounts but 1T spindles are the same for srw and drw trucks 3/4T rotors are not the same as 1T swr rotors and drw rotors are different then both 1T srw and 1T drw calippers are the same and 3/4T is different woo.... ok, balljonts are the same for 3/4T as for 1T srw and drw and arms are the same for 3/4T and 1T and none of this stuff interchanges with a 1/2T but the 1/2T crossmember is the same as the 1T and 3/4T so with 1/2T A arms and spindles you can swap your 3/4T &1T to a 1/2T now! with that saidI know the 4wd interchange question is going to come up. and the only thing I know about 4wds is you can part them out to fat'n up your wallet. and thats all I want to know! __________________ my sports car rolls on six wheels only because I'm to fat to get in and out of new corvette http://hubgarage.s3.amazonaws.com/ph...ped_detail.JPG

02-23-2009, 10:37 PM	#2
b454rat Senior Member Join Date: May 2004 Location: Binghamton, NY Posts: 3,469	Re: 1/2T 3/4T and 1T swapping Can't comment on 2wds, I don't mess with them anymore. As for 4wd, just aboot everything is interchangable, depending of course.... __________________ 2000 GMC CCSB 454/4L80 6” lift SAS 1999 Chevy CCSB 454/NV4500 4” SAS 1999 GMC Yukon 350/4L60 6" SAS

02-23-2009, 11:02 PM	#3
lolife99 67-72 parts collector,… Join Date: Nov 2002 Location: Mid-MO Posts: 22,700	Re: 1/2T 3/4T and 1T swapping Thanks for the info Pig Rig. Have you ever used ECE's "3/4 ton to 1/2 ton conversion" spindles to put 1/2 ton brakes on a crew cab? These should allow you to keep all of your 3/4 ton or 1 ton a-arms, ball joints, and tie rod ends. I just don't know of anyone that has tried it. I may have to be the first with my '89 srw 1 ton crew cab. __________________ Keith Convert to disc brakes. http://67-72chevytrucks.com/vboard/s...d.php?t=444823

02-24-2009, 10:56 AM	#5
lolife99 67-72 parts collector,… Join Date: Nov 2002 Location: Mid-MO Posts: 22,700	Re: 1/2T 3/4T and 1T swapping I'm building a 1/2 ton shortbed crew cab. __________________ Keith Convert to disc brakes. http://67-72chevytrucks.com/vboard/s...d.php?t=444823

02-25-2009, 02:50 AM	#6
pig rig Registered User Join Date: Feb 2009 Location: washington the state Posts: 730	Re: 1/2T 3/4T and 1T swapping lolife99 I've never looked into the ece set up but if you have a bearings dist. around your area, you could do a little research and save your self some big money I bet the chev 1/2T bearing and race is pertty comen set in the industral setting __________________ my sports car rolls on six wheels only because I'm to fat to get in and out of new corvette http://hubgarage.s3.amazonaws.com/ph...ped_detail.JPG Last edited by pig rig; 02-25-2009 at 02:53 AM.

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