Drop trailing arms! - The 1947 - Present Chevrolet & GMC Truck Message Board Network

casey g · 11-20-2012, 12:30 PM

Has anyone else made there own drop trailing arms? I'm in the early stages of building mine. I'll post a pic of what I'm doing but I was wondering of anyone else has done it besides porter built.
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jimmydean · 11-20-2012, 12:50 PM

There is at least a few folks that have done it on here.

casey g · 11-20-2012, 01:18 PM

here is my design. will be a 3 inch drop.

ulakovic22 · 11-20-2012, 01:49 PM

Looks cool, but where does the axle sit? On the pad in the back or in the cup you've created? I'm guessing the pad and then the cup is for added frame rail clearance when dropped? Are the bags going to mount on the TA or on the axle?

casey g · 11-20-2012, 01:52 PM

The axle will mount on the back like normal. The springs or bags will mount in the notch. The notch is 1.5 lower the. Stock and where the mount for axle is 1.5 higher then stick. So there is the 3 inches
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ulakovic22 · 11-20-2012, 02:23 PM

Makes sense, with it configured that way you should be able to run 15" wheels and not have to worry about scrub line issues, correct?

casey g · 11-20-2012, 02:25 PM

Um I'm not sure. But it wouldn't be as bad as running a big block. Im running 20s now so I don't have that scrub line problem
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jimmydean · 11-20-2012, 03:40 PM

Wow, those look very cool. The build I was thinking of just used DOM tube with the same ends that Nate uses for his to mount to the crossmember.

casey g · 11-20-2012, 04:30 PM

Thanks man. Don't want to copy nates awesome stuff. Glad you like them. THe other piece is one of the two frame cross members that are behind the axle.
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**Captainfab** · 11-25-2012, 11:56 PM

What material are you planning on using Casey?

casey g · 11-26-2012, 12:06 AM

Not sure if I'm going to use 2x3 or 2x4. And not sure on the thickness
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casey g · 11-26-2012, 11:34 AM

This is pic of my truck befor the 68 front clip swap
Also it sits about one inch lower in the front now. The springs were in wrong

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fastcam1 · 11-28-2012, 02:31 AM

You install the drop spindles yet or you waiting for the trailling arms to be done?
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casey g · 11-28-2012, 09:41 AM

I'm going to need to wait. There is a lot that will need to be changed. Frame notch. Inner fenders need to have something done. The more I look at that pic the truck sets 2 inches lower. It doesn't rub now but it will. Might get smaller tires but that puts my Clarence that much lower. So I'm not sure what my full plan is.
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casey g · 06-20-2013, 10:43 AM

well finally started my to build the trailing arms. there not done yet but atleast there a lot closer.
also the last pic is how my truck is setting with 2 inch blocks in the back with a 6 inch spring.

67c10rustbuket · 06-20-2013, 10:51 AM

Nice work! Did you bend the bars up once the spring section was cut out? just wondering how you formed them. Any more pics of the rear of the arms?

casey g · 06-20-2013, 11:04 AM

there is three pieces. started as one. first was a pie cut for the pinon angle. then slid up 1.5 to get a 1.5 drop. then cut out the spring pocket so it set down 1.5. then a piece was cut to fit under the back so it was strong and looked right.

vegadesign · 06-20-2013, 11:08 AM

thats a very nifty idea, another thing iv seen is the trailing arm get z'ed
does take any of the flex or strenth out of it and it gives you alot of drop

casey g · 06-20-2013, 11:17 AM

thanks man. took a lot of thinking for how simple they really are.

vegadesign · 06-20-2013, 11:38 AM

looks really clean too man, very nice welds and shape

i took the easy route and made 3" blocks haha

casey g · 06-20-2013, 11:55 AM

right now now im running two inch blocks in the back.

11-20-2012, 12:30 PM	#1
casey g Registered User Join Date: Oct 2011 Location: Coeur d'alene ID Posts: 509	Drop trailing arms! Has anyone else made there own drop trailing arms? I'm in the early stages of building mine. I'll post a pic of what I'm doing but I was wondering of anyone else has done it besides porter built. Posted via Mobile Device Posted via Mobile Device

11-20-2012, 12:50 PM	#2
jimmydean Registered User Join Date: May 2005 Location: Beaverton, OR Posts: 3,728	Re: Drop trailing arms! There is at least a few folks that have done it on here. __________________ New Project: 1966 LWB C20 Plans: 1/2 ton conversion Dropmember front Dropmember rear Corvette discs Restored raised bed http://67-72chevytrucks.com/vboard/s....php?p=4295210

11-20-2012, 01:18 PM	#3
casey g Registered User Join Date: Oct 2011 Location: Coeur d'alene ID Posts: 509	Re: Drop trailing arms! here is my design. will be a 3 inch drop.

11-20-2012, 01:49 PM	#4
ulakovic22 Registered User Join Date: Aug 2008 Location: Lantana, TX Posts: 419	Re: Drop trailing arms! Looks cool, but where does the axle sit? On the pad in the back or in the cup you've created? I'm guessing the pad and then the cup is for added frame rail clearance when dropped? Are the bags going to mount on the TA or on the axle?

11-20-2012, 01:52 PM	#5
casey g Registered User Join Date: Oct 2011 Location: Coeur d'alene ID Posts: 509	Re: Drop trailing arms! The axle will mount on the back like normal. The springs or bags will mount in the notch. The notch is 1.5 lower the. Stock and where the mount for axle is 1.5 higher then stick. So there is the 3 inches Posted via Mobile Device

11-20-2012, 02:23 PM	#6
ulakovic22 Registered User Join Date: Aug 2008 Location: Lantana, TX Posts: 419	Re: Drop trailing arms! Makes sense, with it configured that way you should be able to run 15" wheels and not have to worry about scrub line issues, correct?

11-20-2012, 02:25 PM	#7
casey g Registered User Join Date: Oct 2011 Location: Coeur d'alene ID Posts: 509	Re: Drop trailing arms! Um I'm not sure. But it wouldn't be as bad as running a big block. Im running 20s now so I don't have that scrub line problem Posted via Mobile Device

11-20-2012, 03:40 PM	#8
jimmydean Registered User Join Date: May 2005 Location: Beaverton, OR Posts: 3,728	Re: Drop trailing arms! Wow, those look very cool. The build I was thinking of just used DOM tube with the same ends that Nate uses for his to mount to the crossmember. __________________ New Project: 1966 LWB C20 Plans: 1/2 ton conversion Dropmember front Dropmember rear Corvette discs Restored raised bed http://67-72chevytrucks.com/vboard/s....php?p=4295210

11-20-2012, 04:30 PM	#9
casey g Registered User Join Date: Oct 2011 Location: Coeur d'alene ID Posts: 509	Re: Drop trailing arms! Thanks man. Don't want to copy nates awesome stuff. Glad you like them. THe other piece is one of the two frame cross members that are behind the axle. Posted via Mobile Device Last edited by casey g; 11-20-2012 at 04:39 PM.

11-25-2012, 11:56 PM	#10
Captainfab 60-66 Nut Join Date: Mar 2007 Location: Coeur d'Alene, Idaho Posts: 23,252	Re: Drop trailing arms! What material are you planning on using Casey? __________________ Power Steering Box Adapter Plates For Sale HERE Power Brake Booster Adapter Brackets For Sale '63-'66 HERE and '67-'72 HERE and '60-'62 HERE and "60-'62 with clutch HERE Rear Disc Brake Brackets For Sale. Impala SS calipers HERE Camaro Calipers HERE D52 Calipers HERE 6 Lug HERE Hydroboost Mounting Plates HERE

11-26-2012, 12:06 AM	#11
casey g Registered User Join Date: Oct 2011 Location: Coeur d'alene ID Posts: 509	Re: Drop trailing arms! Not sure if I'm going to use 2x3 or 2x4. And not sure on the thickness Posted via Mobile Device

11-26-2012, 11:34 AM	#12
casey g Registered User Join Date: Oct 2011 Location: Coeur d'alene ID Posts: 509	Re: Drop trailing arms! This is pic of my truck befor the 68 front clip swap Also it sits about one inch lower in the front now. The springs were in wrong Posted via Mobile Device

11-28-2012, 02:31 AM	#13
fastcam1 Young gun Join Date: Feb 2009 Location: Spanaway WA Posts: 631	Re: Drop trailing arms! You install the drop spindles yet or you waiting for the trailling arms to be done? Posted via Mobile Device __________________ 67 SWB Custom "JANE" http://67-72chevytrucks.com/vboard/s...d.php?t=554024 Northwest C10's http://www.facebook.com/#!/groups/Norhtwestc10s/ Cameron sparks

11-28-2012, 09:41 AM	#14
casey g Registered User Join Date: Oct 2011 Location: Coeur d'alene ID Posts: 509	Re: Drop trailing arms! I'm going to need to wait. There is a lot that will need to be changed. Frame notch. Inner fenders need to have something done. The more I look at that pic the truck sets 2 inches lower. It doesn't rub now but it will. Might get smaller tires but that puts my Clarence that much lower. So I'm not sure what my full plan is. Posted via Mobile Device

06-20-2013, 10:43 AM	#15
casey g Registered User Join Date: Oct 2011 Location: Coeur d'alene ID Posts: 509	Re: Drop trailing arms! well finally started my to build the trailing arms. there not done yet but atleast there a lot closer. also the last pic is how my truck is setting with 2 inch blocks in the back with a 6 inch spring. Attached Images



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06-20-2013, 10:51 AM	#16
67c10rustbuket Registered User Join Date: Apr 2011 Location: Mustang, Oklahoma Posts: 2,806	Re: Drop trailing arms! Nice work! Did you bend the bars up once the spring section was cut out? just wondering how you formed them. Any more pics of the rear of the arms? __________________ Dan <---(my name) 67 SWB C10 project "GEORGIA"-59 Brookwood 2dr wag...Next project-03 Tahoe 4x4 5.3 family ride-07 Hondur Accord, commuter car

06-20-2013, 11:04 AM	#17
casey g Registered User Join Date: Oct 2011 Location: Coeur d'alene ID Posts: 509	Re: Drop trailing arms! there is three pieces. started as one. first was a pie cut for the pinon angle. then slid up 1.5 to get a 1.5 drop. then cut out the spring pocket so it set down 1.5. then a piece was cut to fit under the back so it was strong and looked right.

06-20-2013, 11:08 AM	#18
vegadesign Registered User Join Date: May 2012 Location: murfreesboro, TN Posts: 743	Re: Drop trailing arms! thats a very nifty idea, another thing iv seen is the trailing arm get z'ed does take any of the flex or strenth out of it and it gives you alot of drop __________________ "its not a hobby, It's a Lifestyle" . bagged and soon to be bodied 70 longbed http://67-72chevytrucks.com/vboard/s...d.php?t=564028

06-20-2013, 11:17 AM	#19
casey g Registered User Join Date: Oct 2011 Location: Coeur d'alene ID Posts: 509	Re: Drop trailing arms! thanks man. took a lot of thinking for how simple they really are.

06-20-2013, 11:38 AM	#20
vegadesign Registered User Join Date: May 2012 Location: murfreesboro, TN Posts: 743	Re: Drop trailing arms! looks really clean too man, very nice welds and shape i took the easy route and made 3" blocks haha __________________ "its not a hobby, It's a Lifestyle" . bagged and soon to be bodied 70 longbed http://67-72chevytrucks.com/vboard/s...d.php?t=564028

06-20-2013, 11:55 AM	#21
casey g Registered User Join Date: Oct 2011 Location: Coeur d'alene ID Posts: 509	Re: Drop trailing arms! right now now im running two inch blocks in the back.

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