88-98 chevy 3/4 ton ifs into a 1/2 ton 94 k1500

OHEARN.2012 · July 24, 2011, 02:17:11 AM

had a question at first i wanted to sas my truck but now im going to use it as a bogger hauler and want to keep the ifs but i wondered would i run into any major problems upgrading to a 3/4 ton ifs front end with 410 gears into my 1/2 ton?

OHEARN.2012 · July 25, 2011, 02:51:52 AM

any1 someone had to of done this

Chevy Racer · July 25, 2011, 02:53:17 AM

According to the info on the parts the CV shafts are the same. I thought the A arms were longer on the 3/4 ton but not sure.

KORNBREAD · July 25, 2011, 03:17:28 AM

just get a 4:10 set for your 1/2 ton set up. Not enough strength difference between the 3/4 ton front and your front to do all that swapping.

OHEARN.2012 · July 25, 2011, 03:24:49 AM

i didnt know they made gears for these where can i get some?

J.C. · July 25, 2011, 04:08:49 AM

Quote from: KORNBREAD on July 25, 2011, 03:17:28 AM
just get a 4:10 set for your 1/2 ton set up. Not enough strength difference between the 3/4 ton front and your front to do all that swapping.

gotta split the diff. pain in the

... just find one that has the gear ya want, and swap the diff. dunno bout the compatibility, but i know it would be easier then puttin gears into a case

OHEARN.2012 · July 25, 2011, 04:33:15 AM

i have the 373a right now want to get 410s

J.C. · July 25, 2011, 11:47:50 AM

http://www.gmfullsize.com/forum/showpost.php?s=3434ab95006922f7345ad24a95690209&p=1138119&postcount=148

this guy did it. no pics, but by the description, its a pain! read from that post down

KORNBREAD · July 25, 2011, 03:55:47 PM

yeah you can do the swap. I just didnt go into detail on what had to be done but Dude hooked you up anyways. good luck to you.

OHEARN.2012 · July 25, 2011, 06:22:06 PM

sounds like it would be almost easier to do a sas

betterbeaters · July 25, 2011, 07:19:27 PM

tow with 3.73 they work great for towing

OHEARN.2012 · July 25, 2011, 08:26:44 PM

they do alright i dont got to much get up and go tho

old school truck dude · July 26, 2011, 12:03:35 AM

Quote from: Chevy Racer on July 25, 2011, 02:53:17 AM
According to the info on the parts the CV shafts are the same. I thought the A arms were longer on the 3/4 ton but not sure.

They are longer and there are more differences, studs on the ball joints, bucha stuff. Gotta use the entire setup, and them a-arms are hard to get loose.

OHEARN.2012 · July 26, 2011, 01:43:23 AM

so id be better going three quarter ton with a sas then ifs?

betterbeaters · July 26, 2011, 11:07:42 AM

Quote from: OHEARN.2012 on July 25, 2011, 08:26:44 PM
they do alright i dont got to much get up and go tho

you pulling a trailer not racing you are only going to go so fast....

J.C. · July 26, 2011, 11:20:58 AM

Quote from: betterbeaters on July 26, 2011, 11:07:42 AM
Quote from: OHEARN.2012 on July 25, 2011, 08:26:44 PM
they do alright i dont got to much get up and go tho

you pulling a trailer not racing you are only going to go so fast....

that little get up and go might save your ass one day. id rather have it and not need it, then need it and not have it. plus it would be a little easier on the engine.

OHEARN.2012 · July 26, 2011, 06:30:15 PM

well with going three quarter ton wouldnt i get bigger beefier breaks?

old school truck dude · July 27, 2011, 02:26:03 AM

I would do the 3/4 ton sas if it was me. You get beefier everything and its alot tougher set-up if done correctly