Labor Day Putting down your wrenches or time for MORE wrenching? 
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Mod | | | Forums66 Topics128,006 Posts1,055,268 Members48,418 | | Most Online14,466 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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on the Internet for over 30 years! and not clogged down with Ads! Again, thanks! | | | | Joined: Oct 2015 Posts: 94 'Bolter | | 'Bolter Joined: Oct 2015 Posts: 94 | hello ,i have a 1939 chevy 1.5 ton . i recently put in a 350 sbc , i would like some ideas on a alternator bracket for the drivers side , pretty tight fit from the rocker arm covers and below , does not have room to adjust the tension for the belt . i have a short water pump and 2 pulleys no belt tensioner and the pulleys are V belts . have tried the lower bracket which i really tight how ever 3 of the brackets have broken . thank you for looking . 1pete1 | | | | | Joined: Jun 2011 Posts: 5,096 Crusing in the Passing Lane | | Crusing in the Passing Lane Joined: Jun 2011 Posts: 5,096 | Usually pretty easy to replace generator with alt., just make new mount tabs on existing bracket that bolts to the block to line up belts. If you have broken existing brackets, there might be something else not correctly lined up or welded properly.
Ed
'37 GMC T-18 w/ DD 4-53T, RTO-610, 6231 aux., '95 GMC running gear, full disc brakes, power steering, 22.5 wheels and tires. '47 GMC 1 ton w/ 302, NP-540, 4wd, full width Blazer front axle. '54 GMC 630 w/ 503 gasser, 5 speed, ex fire truck, shortened WB 4', install 8' bed. '55 GMC 370 w/270, 420 4 speed, grain, dump bed truck from ND. Works OK.
| | | | | Joined: May 2005 Posts: 8,983 Sir Searchalot | | Sir Searchalot Joined: May 2005 Posts: 8,983 | Usually pretty easy to replace generator with alt., just make new mount tabs on existing bracket that bolts to the block to line up belts. If you have broken existing brackets, there might be something else not correctly lined up or welded properly.
Ed Agree with Ed. You don't need to buy anything. You can make, modify or repair-weld the brackets you have. Not sure what is broken, what room there is. No pictures! But just find a few places to attach brackets, spacers and a bar with a slot in it. Play around with it, you will eventually see a way. Post GOOD pics if you want more help. Start by placing alternator in the place you want it in. Prop it in there, use wooden blocks, clamps or wire, then start visualizing how to mount. Does it matter what side it's on? Post this in Big Bolts, you may get more responses.
Right is right, even if everyone is against it, and wrong is wrong, even if everyone is for it. - William Penn | | | | | Joined: Jun 2005 Posts: 1,001 'Bolter | | 'Bolter Joined: Jun 2005 Posts: 1,001 | I changed the valve covers on the 41 (they were a wee bit higher), which caused me to relocate the alt. bracket. After playing around with it, I got the low mount bracket from Jegs. It mounts down low on the drivers side. Think it was around $50. Like you said, there's not a lot of room to work with.
~ Victor 1941 3/4-Ton Pickup (in process). Read about it in the DITY Gallery1955 Grumman Kurbside "Doughboy" 235/3 on tree w/ OD 1957 3100 - moved on 1959 C4500 Short Bus "Magic Bus" - moved on 1959 G3800 1 Ton Dually "Chief" - moved on 1958 C4400 Viking "Thor" ~ moved on to fellow Bolter | | | | | Joined: Apr 2005 Posts: 2,832 'Bolter | | 'Bolter Joined: Apr 2005 Posts: 2,832 | If you want it pretty do a search for "high mount alternator bracket". If you want a sure enough strong one cut a piece of 3x3x1/4 angle about 8" long and drill a pair of holes that line up with the front and front center exhaust manifold bolt holes. Use a 7/16 fine threaded nut between the angle and the manifold as a manifold clearance spacer and tack nuts to keep in place. Weld two alternator mount ears on top of the angle (or weld/bolt a factory bracket to the angle). Our 302 Ford air compressor and our sbc V8 fork lift (no kidding) are both done this way. The 302 engine runs on 4 cylinders and pumps air on the other 4 so it shakes enough to give any bracket on it a good test.
Evan
| | | | | Joined: Jul 2006 Posts: 36 'Bolter | | 'Bolter Joined: Jul 2006 Posts: 36 | Bills hot rod shop brackets work very well for this problem and the price is resonable | | |
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