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11-12-2009, 05:39 PM | #1 |
I really hate wet sanding!
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3/4 ton to 1/2 ton supension?
I have recently aquired a rust free 75 3/4 ton lwb truck with 454/400 and am wanting to convert it to 1/2 ton suspension and lower the truck. What parts are needed to complete the swap? I would assume just changing the rear end housing, and the front spindles would be a minimum to complete the transformation.....but are there differnces in the front a arms, sway bar, ball joints, tierod ends? I plan to use 1/2 ton springs front and rear and to lower the truck I was thinking of using cut coils/ lowering spindles up front (was thinking of about 4.5-5 I inch drop in front), and a rear flip kit out back which should be 6-7" drop as far as I know. Any info ideas would be appreciated.
Maybe I should have posted this in the suspension area....mods feel free to move this if you like. |
11-12-2009, 06:05 PM | #2 |
Robert Olson Transport
Join Date: Oct 2002
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Re: 3/4 ton to 1/2 ton supension?
3/4 ton springs are used on half tons in some instances. To get the proper half ton rear youd have to swap it out as they are different sizes.. you would need the springs calipers, rotor, spindles etc to do a swap of the front suspension
the only advantage to lowering using half ton suspension etc is that there are more rims to choose from .There have been posts where people have lowered 3/4 ton trucks
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Bob 1951 International running on a squarebody chassis "If a man's worth is judged by the people he associates himself with, then i am the richest man in the world knowing some of the fine people of this board" http://67-72chevytrucks.com/vboard/a...t.php?f=25&a=9 (you can review the site rules here!) PM Me for your vehicle/parts hauling needs in the North East US or see my Facebook page Robert Olson Transport Live each day to the fullest.. you never know when fate is going to pull the rug out from under you... I hate cancer!! |
11-12-2009, 06:35 PM | #3 |
67-72 parts collector,…
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Re: 3/4 ton to 1/2 ton supension?
Check with ECE. They sell a "conversion" c20 to c10 drop spindle.
Simple. No need to change balljoints or tie rods. Just use 1/2 ton rotors and calipers. Done.
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Keith Convert to disc brakes. http://67-72chevytrucks.com/vboard/s...d.php?t=444823 |
11-12-2009, 09:25 PM | #4 |
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Re: 3/4 ton to 1/2 ton supension?
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11-12-2009, 11:49 PM | #5 |
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Re: 3/4 ton to 1/2 ton supension?
drop the 3/4
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11-13-2009, 04:03 AM | #6 |
I really hate wet sanding!
Join Date: Dec 2008
Location: Brookfield, MO
Posts: 601
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Re: 3/4 ton to 1/2 ton supension?
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11-13-2009, 04:15 AM | #7 |
I really hate wet sanding!
Join Date: Dec 2008
Location: Brookfield, MO
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Re: 3/4 ton to 1/2 ton supension?
I don't think I am smart enough for there website...I could not find the conversion spindles.
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Jeff, 68 C-10 75 C-20, now a C-10! 10 F-150 |
11-13-2009, 05:05 AM | #8 |
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Re: 3/4 ton to 1/2 ton supension?
http://www.earlyclassic.com/catalog.aspx
EDIT: I can't bring up the exact item. They are listed under spindles in the drop down box. (Part # 901-7187C) $269.00 pair QUOTE: Looking to convert your ¾ ton Truck to ½ ton front suspension? We are proud to introduce the only C-20 to C-10 2½" Drop Spindles available on the market. (disc brakes required). Over the years, we’ve had many customers with C-20 8-lug Trucks that would like to convert over to the better riding C-10 suspension and change their wheels to either a 5-lug or 6-lug bolt pattern. These new Conversion Spindles allow you to upgrade to C-10 front disc brakes on the ’60-’70 model Trucks, and give you the option of 2½" front Drop Spindles for the same price without having to change your tie rods and ball joints. Several options are available to change the rear suspension and axle as well, and our technical support staff is more than happy to explain the different methods and choices available for each Truck year and model. Give us a call, we’re here to help.
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Keith Convert to disc brakes. http://67-72chevytrucks.com/vboard/s...d.php?t=444823 Last edited by lolife99; 11-13-2009 at 05:07 AM. |
11-14-2009, 08:06 AM | #9 |
I really hate wet sanding!
Join Date: Dec 2008
Location: Brookfield, MO
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Re: 3/4 ton to 1/2 ton supension?
Okay I found them....I was on the wrong site to begin with, was at ecklers, not early classics.... LOL
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Jeff, 68 C-10 75 C-20, now a C-10! 10 F-150 |
11-14-2009, 06:32 PM | #10 |
At the body shop.
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Re: 3/4 ton to 1/2 ton supension?
The ball joint diameter where it presses into the lower A arm is larger. So you cant put a 1/2 balljoint in 3/4 A arm we tried. You can also reem the 1/2 ton spindle to the 3/4 ton ball joint.
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11-14-2009, 07:29 PM | #11 | |
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Re: 3/4 ton to 1/2 ton supension?
Quote:
No need to change your 3/4 ton ball joints. The spindle works with the 3/4 ton balljoints and tie rod ends,... and uses a 1/2 ton rotor and caliper.
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Keith Convert to disc brakes. http://67-72chevytrucks.com/vboard/s...d.php?t=444823 Last edited by lolife99; 11-14-2009 at 07:31 PM. |
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11-14-2009, 10:40 PM | #12 |
I really hate wet sanding!
Join Date: Dec 2008
Location: Brookfield, MO
Posts: 601
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Re: 3/4 ton to 1/2 ton supension?
I have access to a 1/2 ton for parts, was planning on using it to complete the swap. Just looking the lower arms appear to be the same, so thanks KOOL IT, I now know they are not. Okay so I can change the lowers out too, I already have a set of 1/2 t dropped spindles, so am planning to use them for the swap...I now need to know about the tierod ends, will the 3/4's fit the 1/2 t spindle? If not are the threaded ends where they attach to the adjusting sleaves? Everyone has been so helpful, gotta keep going back to the well for more.
Okay somebody else chime in and rain on my parade....j/k, thanks for the help guys!
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Jeff, 68 C-10 75 C-20, now a C-10! 10 F-150 |
11-14-2009, 11:15 PM | #13 | |
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Re: 3/4 ton to 1/2 ton supension?
Quote:
Do you have all the 1/2 ton steering linkage? That's the best way to go since the outer tie rods are different. I'm not sure about the thread size of the tie rod. Local parts store could help there. Anyone else want to chime in?
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Keith Convert to disc brakes. http://67-72chevytrucks.com/vboard/s...d.php?t=444823 |
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11-14-2009, 11:29 PM | #14 | |
I really hate wet sanding!
Join Date: Dec 2008
Location: Brookfield, MO
Posts: 601
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Re: 3/4 ton to 1/2 ton supension?
Quote:
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Jeff, 68 C-10 75 C-20, now a C-10! 10 F-150 |
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11-14-2009, 11:54 PM | #15 |
67-72 parts collector,…
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Re: 3/4 ton to 1/2 ton supension?
What year are the spindles for that you have on the '68 now?
That will determine ball joint and tie rod application if you decide to use them on your '75.
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Keith Convert to disc brakes. http://67-72chevytrucks.com/vboard/s...d.php?t=444823 |
11-15-2009, 12:12 AM | #16 |
I really hate wet sanding!
Join Date: Dec 2008
Location: Brookfield, MO
Posts: 601
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Re: 3/4 ton to 1/2 ton supension?
Complete front suspension on 68 is from an 85, everything on it is new, just not wanting to use it all. The drop spindles are chassis tech 2.5" drop for 1.25" rotors.
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Jeff, 68 C-10 75 C-20, now a C-10! 10 F-150 |
11-15-2009, 12:17 AM | #17 |
I really hate wet sanding!
Join Date: Dec 2008
Location: Brookfield, MO
Posts: 601
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Re: 3/4 ton to 1/2 ton supension?
Still not sure which way I will go for the front swap, just trying to figure out what is the most cost effective. Early classics maybe the way I wind up going, just picking e ruined brain here to see what I want to do.
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Jeff, 68 C-10 75 C-20, now a C-10! 10 F-150 |
04-12-2012, 07:53 PM | #18 |
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Re: 3/4 ton to 1/2 ton supension?
So, can you use the 1/2 ton rear lowering kits on a 3/4 if it is coils?
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