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09-25-2021, 12:05 AM | #51 | |
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Join Date: Jun 2014
Location: Orlando Florida
Posts: 1,598
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Re: Smaller/thinner rear brake drum? Deep rear steelies won't fit!
This is a drum from my G20. It doesn't look as thick on the face as yours. Has the 2 3/4 brakes.
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09-25-2021, 12:10 AM | #52 |
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Join Date: May 2015
Location: Alabama
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Re: Smaller/thinner rear brake drum? Deep rear steelies won't fit!
Spartan locker is basically what's called lunchbox locker..it replaces the spider gears in a standard diff..
10 and 12 bolt rear have C clips that hold the axles in...you'll have to disassemble the spartan to get the axles out
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Mongo...aka Greg RIP Dad RIP Jesse 1981 C30 LQ9 NV4500..http://67-72chevytrucks.com/vboard/s...d.php?t=753598 Mongos AD- LS3 TR6060...http://67-72chevytrucks.com/vboard/s...34#post8522334 Columbus..the 1957 IH 4x4...http://67-72chevytrucks.com/vboard/s...63#post8082563 2023 Chevy Z71..daily driver |
09-25-2021, 12:13 AM | #53 | |
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Location: DALLAS,TX
Posts: 22,066
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Re: Smaller/thinner rear brake drum? Deep rear steelies won't fit!
Quote:
You can take a HD drum set-up & install it on another standard 12-bolt housing or even one of the earlier pre-70 housings. The brakes swap over as an entire set-up which requires the backing plate that have a deeper offset which provides room for the wider shoes/drums w/o impacting axle/rear housing width requirements. As for doing the work.... Start off by helping yourself. Practice first. Take the rear wheels off & remove the drums. Take one side apart to help understand what to expect (tension/force/effort). When everything related to the brakes is apart, put that side back together. You'll be able to reference where things go by looking @ the opposite side. Make sure you can complete the diassembly/reassembly process before advancing to removing axles & brake backing plates. Even when you do the actual swap, do one side @ a time. It'a always a benefit for the novice to have a visual reference to work with.
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67SWB-B.B.RetroRod 64SWB-Recycle 89CCDually-Driver/Tow Truck 99CCSWB Driver All Fleetsides @rattlecankustoms in IG Building a small, high rpm engine with the perfect bore, stroke and rod ratio is very impressive. It's like a highly skilled Morrocan sword fighter with a Damascus Steel Scimitar..... Cubic inches is like Indiana Jones with a cheap pistol. Last edited by SCOTI; 09-25-2021 at 12:21 AM. |
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09-25-2021, 12:14 AM | #54 |
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Join Date: Apr 2014
Location: Western Colorado
Posts: 41
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Re: Smaller/thinner rear brake drum? Deep rear steelies won't fit!
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09-25-2021, 12:15 AM | #55 | |
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Location: Western Colorado
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Re: Smaller/thinner rear brake drum? Deep rear steelies won't fit!
Quote:
Thank you for that input.... |
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09-25-2021, 11:35 AM | #56 |
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Join Date: Jun 2008
Location: Holland, MI
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Re: Smaller/thinner rear brake drum? Deep rear steelies won't fit!
Grinding on the wheel instead of solving the fitment issue correctly seems a bit crazy to me. But to each their own.
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09-25-2021, 12:27 PM | #57 |
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Location: Western Colorado
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Re: Smaller/thinner rear brake drum? Deep rear steelies won't fit!
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09-28-2021, 06:27 PM | #58 | |
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Join Date: Apr 2018
Location: Penngrove, CA
Posts: 697
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Re: Smaller/thinner rear brake drum? Deep rear steelies won't fit!
Quote:
What I ended up going with was replacing the brakes, from backing plate to drum, with a set of smaller 2" wide 5x5 drums off a 71-72 (and maybe on up to 73+) I have it all written up here. http://67-72chevytrucks.com/vboard/s...d.php?t=766038 Basically the hardest part was sourcing the backing plates for the smaller drums. Literally every other part of the brake system is available from NAPA... I got new backing plates from a member on here, and bought the rest of the parts new and swapped it all. Bolted up fine and mounted those badass 15x10's and never looked back. Good luck, let me know if this helps or if you have any questions.
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09-29-2021, 09:47 AM | #59 |
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Join Date: Apr 2001
Location: DALLAS,TX
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Re: Smaller/thinner rear brake drum? Deep rear steelies won't fit!
It should be easier to find a 12bolt 5x5 pattern w/standard brakes than it is to find one w/HD brakes.
Perhaps there's even a board member that would be interested in a straight up swap??
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67SWB-B.B.RetroRod 64SWB-Recycle 89CCDually-Driver/Tow Truck 99CCSWB Driver All Fleetsides @rattlecankustoms in IG Building a small, high rpm engine with the perfect bore, stroke and rod ratio is very impressive. It's like a highly skilled Morrocan sword fighter with a Damascus Steel Scimitar..... Cubic inches is like Indiana Jones with a cheap pistol. |
10-01-2021, 11:09 PM | #60 |
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Join Date: Apr 2014
Location: Western Colorado
Posts: 41
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Re: Smaller/thinner rear brake drum? Deep rear steelies won't fit!
So I swapped drums...and I think I'm good to go!
Only able to find one rear drum at this point...but another is supposedly on the way. Check it out: |
10-02-2021, 03:28 AM | #61 |
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Location: Alabama
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Re: Smaller/thinner rear brake drum? Deep rear steelies won't fit!
like it!!!!...so you only changed the drum?..what was the difference?
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Mongo...aka Greg RIP Dad RIP Jesse 1981 C30 LQ9 NV4500..http://67-72chevytrucks.com/vboard/s...d.php?t=753598 Mongos AD- LS3 TR6060...http://67-72chevytrucks.com/vboard/s...34#post8522334 Columbus..the 1957 IH 4x4...http://67-72chevytrucks.com/vboard/s...63#post8082563 2023 Chevy Z71..daily driver |
10-03-2021, 12:15 AM | #62 | |
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Join Date: Apr 2014
Location: Western Colorado
Posts: 41
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Re: Smaller/thinner rear brake drum? Deep rear steelies won't fit!
Quote:
The fronts took a 1/4" spacer, which I didn't anticipate....but they kept kissing the tie rod ends. The spacer took care of that, as far as I can tell. I give up 1/4" of wheel stud length - is that anything I should be concerned about? It's not ideal, I realize...but there is still a good 3/4" - 1" of thread sticking through the wheel. Think that's sufficient? With the tapered acorn-style lug nuts? Thanks @ShortHaul for his thread that chased down the same issues! The spacer worked for my fronts as well - so much appreciated. I have yet to take it for a drive, so I may be celebrating a bit prematurely, but so far they all look like they're going to work! Wahoo! I may need to put her on the road for a day or two to see what shakes out, but so far I'm feeling very positive. And it looks absolutely killer! More pics to come... Thank you so much for everyone's help! I love this place! |
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10-04-2021, 12:26 AM | #63 |
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Join Date: Apr 2014
Location: Western Colorado
Posts: 41
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Re: Smaller/thinner rear brake drum? Deep rear steelies won't fit!
So I finally got the wheels and tires sorted out....and took her for a shakedown run this morning and found her pouring fuel from the dual-tank valve. Awesome. Haha. Three steps forward, two steps back.
It's the single-wire, 6-port valve. Guessing those are almost impossible to find these days? This is going to take a new thread, most likely! Haha. Darn trucks! |
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