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Apr 26th, 2026 | | AD Chevy Trucks  Over 6,000 pictures Brad Allen has an awesome collection of Chevrolet factory pictures that he has set up from film strips. Check them out!
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| | | | Joined: Mar 2015 Posts: 24 New Guy | | New Guy Joined: Mar 2015 Posts: 24 | Hey guys just wondering if the front axle from a 58 chevy half ton will work on my 1956 gmc 3/4 ton….looks to be the same but what do I know?…..the 58 axle already has disc brake conversion and has been completely rebuilt and I can get it for a song…thanks | | | | | Joined: Jul 2010 Posts: 592 Shop Shark | | Shop Shark Joined: Jul 2010 Posts: 592 | Should be a straight swap, but you'll be going from eight lug rims to six lugs.
Matt | | | | | Joined: Mar 2015 Posts: 24 New Guy | | New Guy Joined: Mar 2015 Posts: 24 | Thanks Maybellene,the 8 lug rims I had are split rims so I had already planned on replacing them with 6 lug…..thanks | | | | | Joined: May 2005 Posts: 8,878 . | | . Joined: May 2005 Posts: 8,878 | I'm not familiar with the 58, but on the AD trucks this is a bolt in swap, the front springs are same width for 1/2 and 3/4 ton, so axle bolts in the same.
I wouldn't downgrade a 3/4 ton though. Lots of 8 lug tubeless wheels are available. There are also a couple disc brake kits available for 3/4 and 1 tons the last couple years, if disc brakes were the main goal.
I wonder if the aftermarket 1/2 ton disc brakes are even as good as the3/4 ton drums? Brakes come in different sizes, so just being disc brakes doesn't make them more effective, depending on the compression.
Grigg | | | | | Joined: Feb 2004 Posts: 29,876 Kettle Custodian (pot stirrer) | | Kettle Custodian (pot stirrer) Joined: Feb 2004 Posts: 29,876 | Is the "truck" going to become a" Cowboy Cadillac" or a weekend cruiser that never gets the bed dirty, let alone loaded to its capacity? If so, a couple of holes in the floorboard and a Fred Flintstone brake system will probably be sufficient. If it's going to do real truck stuff, even occasionally, going to a compact car brake and/or suspension system is irresponsible and dangerous.
Jerry
"It is better to be silent and be thought a fool than to speak and eliminate all doubt!" - Abraham Lincoln
Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt!
There is nothing noble in being superior to your fellow man; true nobility is being superior to your former self. - Ernest Hemingway
Love your enemies and drive 'em nuts!
| | | | | Joined: Mar 2015 Posts: 24 New Guy | | New Guy Joined: Mar 2015 Posts: 24 | This truck will be a weekend cruiser,installing a 190 hp 350 s/b,never going to be doing any heavy duty hauling. I picked up the axle this weekend...all bushings, bearings every thing had been replaced.and the disc conversion had been done, the owner changed direction and went for IFS ....for what I have into it (very little) I thought it was worth the gamble...if it doesn't work out I can always swap it onto my 1/2 ton....thanks for the input guys..
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