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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!
Lots of work on Brad's part ... pure enjoyment (and references) for you!
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For helping keep this great
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on the Internet for over 30 years! and not clogged down
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| | | | Joined: Feb 2006 Posts: 117 Wrench Fetcher | | Wrench Fetcher Joined: Feb 2006 Posts: 117 | I have a '57 1/2 ton. It currently has a 265 (mystery motor) and I picked up a SM420 and driveline for it. The stock rear is in place, but missing the yoke... I think I am going to change direction and build/find a 350 engine and 350 trans. I will probably buy the aftermarket bolt-on motor mount/x-member and tranny x-member. As for the rear end... I know that I will need to upgrade to accomodate the hp/tq of the new engine/trans. Here's where I need help: Is there a direct bolt in rear that will have the same mounting points and locations for using the existing suspension components? Also, do I even want to keep the stock style suspension with a beefier drivetrain? I think I will want this donor rear to have a 5-lug pattern as well... Thanks-Dano 
my truck gets better every day...every PAYDAY | | | | | Joined: Feb 2002 Posts: 12,029 Cruising in the Passing Lane | | Cruising in the Passing Lane Joined: Feb 2002 Posts: 12,029 | any 5 lug rear will have a different mount setup/position that'll have adapted to yer truck, especially cuz of the pinion angle - other than the 5 stud thing [gonna change the fronts too?], no reason the stock rear won't handle any engine you put in, the only consideration is if you want better gearing for whatever yer gonna do - might find an OD trans for highway speeds
Bill | | | | | Joined: Feb 2006 Posts: 117 Wrench Fetcher | | Wrench Fetcher Joined: Feb 2006 Posts: 117 | pinion angle is very important!! I remember this from building my 69 Camaro.lol Are internals readily available for the stock rear axles? i know you can buy an aftermarket gear set or adapter for them, but are axles and yokes available? Thanks-Dano
my truck gets better every day...every PAYDAY | | | | | Joined: Feb 2002 Posts: 12,029 Cruising in the Passing Lane | | Cruising in the Passing Lane Joined: Feb 2002 Posts: 12,029 | don't know about new axles, never broke one - a buddy has a 55 w/ 427 and the stock axle works fine lifting the front wheels! the yoke should be available, or there's lotsa used around, and all the bearings are on the shelf - find a good rear end shop and everything will be available - I've talked to a place in Vancouver BC that can fix ya up with near anything including the 3.38 gearset, they may have axles too Bill | | | | | Joined: Jun 2004 Posts: 8,597 Riding in the Passing Lane | | Riding in the Passing Lane Joined: Jun 2004 Posts: 8,597 | I agree. the stock rear end is plenty stought. I would use a 700-4R o-drive trans. if I was going with an automatic.
They say money can't buy happiness. It can buy old Chevy trucks though. Same thing. 1972 Chevy c10 Cheyenne SuperIn the Gallery Forum | | | | | Joined: May 2006 Posts: 8,351 'Bolter | | 'Bolter Joined: May 2006 Posts: 8,351 | Me too. The only thing that might be a problem is if you want a traction aid (Posi), there's none availible on the aftermarket, and the factory units, made from '60-'62, are very rare.
Bill Burmeister
| | | | | Joined: Feb 2006 Posts: 117 Wrench Fetcher | | Wrench Fetcher Joined: Feb 2006 Posts: 117 | I'm a ways out for getting to the drivetrain still, so I have time to figure it all out... nothing's impossible, just depends how much time/money I want to spend. I DO like to make informed decisions though to cut down on the headaches  Red, I checked out the site, looks cool! Thanks again! Dano
my truck gets better every day...every PAYDAY | | |
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