5" drop... do I need to... - The 1947 - Present Chevrolet & GMC Truck Message Board Network

**67 cst swb** · 09-11-2007, 08:11 PM

5" rear drop springs (ECE)...
Do I need to C-notch the frame? Or just remove rubber bump stops...
I have a '68 Short Wide, will probably run a 265/70-15 rear tire... will also have a 2.5" drop spindle in front with stock V-8 springs... probably with 255/70-15 front tires.
Any thoughts or pictures...

see ten · 09-11-2007, 08:34 PM

71see10 has the exact drop you're thinking about running. He still has his bumpstops and says that it doesn't hit. I see no reason to install a notch for a 5" notch. A 6" drop is borderline depending on your driving habits. Here's a couple pics of his green one and my red one side by side. My truck has been lowered 1" more than his front and back but I think his tires are about 2" taller than mine in these pics (hint hint wink wink).

71see10 · 09-11-2007, 10:18 PM

I see your hint hint wink wink

There coming soon!!

Can't let it out yet.

67_C-30 · 09-11-2007, 10:22 PM

In what part of the state of GA is LaFayette?

**67 cst swb** · 09-11-2007, 11:50 PM

So, see ten
Yours is...
Front 2.5" drop spindle with a 1" drop coil
w/ 255/50-17
Rear 6" drop coil
w/ 275/50-17

71see10....
Front 2.5" drop spindle
Rear 5" drop coil
w/ 255/70/15 all around

rodstored-72 · 09-12-2007, 11:05 AM

i agree with 71see10, i have a 5" rear drop on my '72 & have not modified the back at all & it drives just fine. i had thought about a adj. track bar, but as of right now i dont fell the need.

good luck!!
rodstored-72

**67 cst swb** · 09-12-2007, 03:36 PM

Who's truck is this, And what is known about the amount lowered and tire sizes...
Any help would be great...

edit* below truck is 3" front and 4" rear w/ Front 255/70-15 & Rear 285/70-15 tires

see ten · 09-12-2007, 04:35 PM

La Fayette is in the northwest corner of the state. We're in Walker county which actually touches TN and AL. The specs for my drop and tires are here http://67-72chevytrucks.com/vboard/s...=143835&page=6 . I also wouldn't say that you don't have to do any mods for a 5" rear drop. We still relocated the shocks and used a super track bar kit on both Brian's and Chuckles trucks. Here's a pic of Chuckles it has an identical drop to Brian's.

**67 cst swb** · 09-12-2007, 06:11 PM

So, the above stepside has a 2.5" spindles with 5" rear coils?
What tire sizes?

71see10 · 09-12-2007, 06:54 PM

I just went and checked,They are 255/70/15 on 15x8 wheels hope this helps! I know how hard it is to decide on wheels and tires. (months of looking)

Brian

**67 cst swb** · 09-13-2007, 10:36 AM

So, 71see10...
Who owns the blue stepside? Who is Chuckles? I can't find a member under that name?
HELP me out...
What are the lowering and tire specs on each
The Fleetside... "71see10" 2.5" Front & 5" Rear drop w/ 255/70-15's Correct?
did you use the 2.5" spindle on front and just a 5" rear drop spring?
&
The Blue stepside....(Chuckles?) specs please?
*EDITED*
Front Drop... 2.5" drop spindle
Front Tire Size... 255/70-15
Rear Drop... 5" drop spring
Rear Tire size... 255/70-15
...Please...?

jkaylor68gmc · 09-13-2007, 11:17 AM

That green truck is dewayane, my buddy that lives down the street. (FatBoys69). 67 CST SWB

That is the truck we lowered some more this past month.

jkaylor68gmc · 09-13-2007, 11:18 AM

SeeTen

How much is your truck lowered and what is the overall diameter on the front and rear tires. Can you PM thta to me or post it. i don't want to forget to check back.

**67 cst swb** · 09-13-2007, 12:53 PM

see ten's info...
"The rears are 17x9.5 with 4.75" of backspace with a 275/50. Up front is 17x8 with 4" of backspace and a 255/50. Tires are Nitto NT 450. My drop is... Front is a 2.5" drop spindle with a 1" drop coil. The rear has a 6" drop coil. I also used the Super track bar in the rear and an extreme drop trailing arm crossmember."
He wrote above info in another thread... (I edited some "where he bought" info out...) See above limnk in his post also.

So in brief... on see ten's truck...
Front is a 2.5" drop spindle with a 1" drop coil
w/ 255/50-17
Rear has a 6" drop coil
w/ 275/50-17
Plus... Super track bar in the rear and an extreme drop trailing arm crossmember.

**67 cst swb** · 09-13-2007, 01:18 PM

Quote:

Originally Posted by rodstored-72

i agree with 71see10, i have a 5" rear drop on my '72 & have not modified the back at all & it drives just fine. i had thought about a adj. track bar, but as of right now i dont fell the need.

good luck!!
rodstored-72

rodstored-72,
So what drop in front with what tires...
Do you have pics?

71see10 · 09-13-2007, 02:15 PM

Chuckels board name is 72bluz, His real name is chuck,he is my brother in law, lives right next door so I get to play with two trucks all the time!!

There is a small story behind the name but thats for a different time. His truck is like mine, Both have 2 1/2 spindles in front with new stock height springs and 5" springs in rear with super track bar,shock relocators. Right now we both have 255/70/15 tires

71see10 · 09-13-2007, 02:28 PM

Here is See Ten's truck with the same drop and 15x8 wheels with 275/60 on all four corners.

jkaylor68gmc · 09-13-2007, 02:29 PM

Thanks a ton. I think I am going to go about 1.5 more in the front, figured 1-inch on the springs, 1.5 on the arms and 2.5 spindles. 5-inches should be plenty.

71see10 · 09-13-2007, 02:32 PM

Tire size comparisons.

http://www.1010tires.com/TireSizeCal...?action=submit

72BlckButy · 09-13-2007, 02:54 PM

Informative post!

**Already Gone** · 09-13-2007, 03:07 PM

I want this post so..TTT

see ten · 09-13-2007, 03:50 PM

Quote:

Originally Posted by jkaylor68gmc

Thanks a ton. I think I am going to go about 1.5 more in the front, figured 1-inch on the springs, 1.5 on the arms and 2.5 spindles. 5-inches should be plenty.

5" is a buttload of drop for the front!

Whatcha got cookin for the back end to keep it all lookin kosher?

**67 cst swb** · 09-13-2007, 09:16 PM

Ok, so here are my thoughts...
Front - 2.5" drop spindles w/ 235/75-15's (28.88" tall) -
FYI- 235/75-15 is slightly shorter & narrower than a 255/70-15 (29.06")
Rear- 5" ECE drop springs w/ 265/70-15's (29.65" tall)

Should be exactly what I'm looking for...

Thanks for all the input guys...

see ten · 09-13-2007, 09:22 PM

You gotta be careful running a 15" wheel with a drop spindle. Some guys have had wheel/lower control arm interference and some haven't. I know mine rubbed when the wheels were being cut deep at speed. Brian's rub as well. I think a lot of it has to do with offset and wheel weight placement.

**67 cst swb** · 09-13-2007, 09:24 PM

Going with stock Rally's at first... Stock 15x7" up front & Stock 15x8's in rear.

09-11-2007, 08:11 PM	#1
67 cst swb Senior Member Join Date: Nov 2001 Location: Rapid City, SD Posts: 2,281	5" drop... do I need to... 5" rear drop springs (ECE)... Do I need to C-notch the frame? Or just remove rubber bump stops... I have a '68 Short Wide, will probably run a 265/70-15 rear tire... will also have a 2.5" drop spindle in front with stock V-8 springs... probably with 255/70-15 front tires. Any thoughts or pictures... __________________ My Trucks: 1967 Chevrolet Short Wide Box 327 TH350 9" w/3.90 gears paint will be White - Current Project 1967 Chevrolet Custom LWB 283 TH400 3.73 Posi, no-AC, no-PS, no-PB, bench-seat, small-window - mostly orig driver 1967 Chevrolet CST LWB originally a 327 TH400 3.73 Posi AC PS PB, had Buddy Buckets, Small Window - parts truck 1967 Chevrolet CST LWB, 283 MT 3.73 had Buddy Buckets, Panoramic Window - parts truck 2001 Chevrolet 3500 2WD Crew Cab Dually 8.1L Allison White Last edited by 67 cst swb; 09-11-2007 at 08:12 PM.

09-11-2007, 08:34 PM	#2
see ten WTB this ad Join Date: Sep 2004 Location: Lafayette Georgia Posts: 5,074	Re: 5" drop... do I need to... 71see10 has the exact drop you're thinking about running. He still has his bumpstops and says that it doesn't hit. I see no reason to install a notch for a 5" notch. A 6" drop is borderline depending on your driving habits. Here's a couple pics of his green one and my red one side by side. My truck has been lowered 1" more than his front and back but I think his tires are about 2" taller than mine in these pics (hint hint wink wink).

09-11-2007, 10:18 PM	#3
71see10 Worthless Join Date: Jun 2006 Location: LaFayette, GA Posts: 199	Re: 5" drop... do I need to... I see your hint hint wink wink There coming soon!! Can't let it out yet.

09-11-2007, 10:22 PM	#4
67_C-30 I have a radical idea! Join Date: Jan 2005 Location: Sweet Home Alabama! Posts: 6,513	Re: 5" drop... do I need to... In what part of the state of GA is LaFayette? __________________ '67 C-30 Dually Pickup 6.2 Turbo Diesel, NP435 ‘72 C-10 SWB , 350 4bbl, TH350 '69 C-10 SWB , 250 L6, 3 OTT '69 GMC C3500, dump truck, 351 V6, NP435 '84 M1009 CUCV Military Blazer 67 C-30 Turbodiesel build thread http://67-72chevytrucks.com/vboard/s...d.php?t=254096 My trucks http://s226.photobucket.com/albums/d...ediafilter=all Member of the 1-Ton Club!

09-11-2007, 11:50 PM	#5
67 cst swb Senior Member Join Date: Nov 2001 Location: Rapid City, SD Posts: 2,281	Re: 5" drop... do I need to... So, see ten Yours is... Front 2.5" drop spindle with a 1" drop coil w/ 255/50-17 Rear 6" drop coil w/ 275/50-17 71see10.... Front 2.5" drop spindle Rear 5" drop coil w/ 255/70/15 all around __________________ My Trucks: 1967 Chevrolet Short Wide Box 327 TH350 9" w/3.90 gears paint will be White - Current Project 1967 Chevrolet Custom LWB 283 TH400 3.73 Posi, no-AC, no-PS, no-PB, bench-seat, small-window - mostly orig driver 1967 Chevrolet CST LWB originally a 327 TH400 3.73 Posi AC PS PB, had Buddy Buckets, Small Window - parts truck 1967 Chevrolet CST LWB, 283 MT 3.73 had Buddy Buckets, Panoramic Window - parts truck 2001 Chevrolet 3500 2WD Crew Cab Dually 8.1L Allison White Last edited by 67 cst swb; 09-13-2007 at 01:17 PM.

09-12-2007, 11:05 AM	#6
rodstored-72 chevy truck fan Join Date: Mar 2005 Location: Gilbert, arizona 85298 Posts: 2,009	Re: 5" drop... do I need to... i agree with 71see10, i have a 5" rear drop on my '72 & have not modified the back at all & it drives just fine. i had thought about a adj. track bar, but as of right now i dont fell the need. good luck!! rodstored-72

09-12-2007, 03:36 PM	#7
67 cst swb Senior Member Join Date: Nov 2001 Location: Rapid City, SD Posts: 2,281	Re: 5" drop... do I need to... Who's truck is this, And what is known about the amount lowered and tire sizes... Any help would be great... edit* below truck is 3" front and 4" rear w/ Front 255/70-15 & Rear 285/70-15 tires __________________ My Trucks: 1967 Chevrolet Short Wide Box 327 TH350 9" w/3.90 gears paint will be White - Current Project 1967 Chevrolet Custom LWB 283 TH400 3.73 Posi, no-AC, no-PS, no-PB, bench-seat, small-window - mostly orig driver 1967 Chevrolet CST LWB originally a 327 TH400 3.73 Posi AC PS PB, had Buddy Buckets, Small Window - parts truck 1967 Chevrolet CST LWB, 283 MT 3.73 had Buddy Buckets, Panoramic Window - parts truck 2001 Chevrolet 3500 2WD Crew Cab Dually 8.1L Allison White Last edited by 67 cst swb; 09-14-2007 at 12:31 AM.

09-12-2007, 04:35 PM	#8
see ten WTB this ad Join Date: Sep 2004 Location: Lafayette Georgia Posts: 5,074	Re: 5" drop... do I need to... La Fayette is in the northwest corner of the state. We're in Walker county which actually touches TN and AL. The specs for my drop and tires are here http://67-72chevytrucks.com/vboard/s...=143835&page=6 . I also wouldn't say that you don't have to do any mods for a 5" rear drop. We still relocated the shocks and used a super track bar kit on both Brian's and Chuckles trucks. Here's a pic of Chuckles it has an identical drop to Brian's.

09-12-2007, 06:11 PM	#9
67 cst swb Senior Member Join Date: Nov 2001 Location: Rapid City, SD Posts: 2,281	Re: 5" drop... do I need to... So, the above stepside has a 2.5" spindles with 5" rear coils? What tire sizes? __________________ My Trucks: 1967 Chevrolet Short Wide Box 327 TH350 9" w/3.90 gears paint will be White - Current Project 1967 Chevrolet Custom LWB 283 TH400 3.73 Posi, no-AC, no-PS, no-PB, bench-seat, small-window - mostly orig driver 1967 Chevrolet CST LWB originally a 327 TH400 3.73 Posi AC PS PB, had Buddy Buckets, Small Window - parts truck 1967 Chevrolet CST LWB, 283 MT 3.73 had Buddy Buckets, Panoramic Window - parts truck 2001 Chevrolet 3500 2WD Crew Cab Dually 8.1L Allison White Last edited by 67 cst swb; 09-13-2007 at 01:20 PM.

09-12-2007, 06:54 PM	#10
71see10 Worthless Join Date: Jun 2006 Location: LaFayette, GA Posts: 199	Re: 5" drop... do I need to... I just went and checked,They are 255/70/15 on 15x8 wheels hope this helps! I know how hard it is to decide on wheels and tires. (months of looking) Brian

09-13-2007, 10:36 AM	#11
67 cst swb Senior Member Join Date: Nov 2001 Location: Rapid City, SD Posts: 2,281	Re: 5" drop... do I need to... So, 71see10... Who owns the blue stepside? Who is Chuckles? I can't find a member under that name? HELP me out... What are the lowering and tire specs on each The Fleetside... "71see10" 2.5" Front & 5" Rear drop w/ 255/70-15's Correct? did you use the 2.5" spindle on front and just a 5" rear drop spring? & The Blue stepside....(Chuckles?) specs please? EDITED Front Drop... 2.5" drop spindle Front Tire Size... 255/70-15 Rear Drop... 5" drop spring Rear Tire size... 255/70-15 ...Please...? __________________ My Trucks: 1967 Chevrolet Short Wide Box 327 TH350 9" w/3.90 gears paint will be White - Current Project 1967 Chevrolet Custom LWB 283 TH400 3.73 Posi, no-AC, no-PS, no-PB, bench-seat, small-window - mostly orig driver 1967 Chevrolet CST LWB originally a 327 TH400 3.73 Posi AC PS PB, had Buddy Buckets, Small Window - parts truck 1967 Chevrolet CST LWB, 283 MT 3.73 had Buddy Buckets, Panoramic Window - parts truck 2001 Chevrolet 3500 2WD Crew Cab Dually 8.1L Allison White Last edited by 67 cst swb; 09-14-2007 at 12:34 AM.

09-13-2007, 11:17 AM	#12
jkaylor68gmc Senior Member Join Date: Dec 2005 Location: TN Posts: 2,448	Re: 5" drop... do I need to... That green truck is dewayane, my buddy that lives down the street. (FatBoys69). 67 CST SWB That is the truck we lowered some more this past month. __________________ 1947 International KB-1 1957 Chevy Bel-Air riding low 1962 swb fleetside 2002 Chevrolet Silverado 7-inch lift on 35 Daily driver 2016 Chevy Tahoe Better halves ride

09-13-2007, 11:18 AM	#13
jkaylor68gmc Senior Member Join Date: Dec 2005 Location: TN Posts: 2,448	Re: 5" drop... do I need to... SeeTen How much is your truck lowered and what is the overall diameter on the front and rear tires. Can you PM thta to me or post it. i don't want to forget to check back. __________________ 1947 International KB-1 1957 Chevy Bel-Air riding low 1962 swb fleetside 2002 Chevrolet Silverado 7-inch lift on 35 Daily driver 2016 Chevy Tahoe Better halves ride

09-13-2007, 12:53 PM	#14
67 cst swb Senior Member Join Date: Nov 2001 Location: Rapid City, SD Posts: 2,281	Re: 5" drop... do I need to... see ten's info... "The rears are 17x9.5 with 4.75" of backspace with a 275/50. Up front is 17x8 with 4" of backspace and a 255/50. Tires are Nitto NT 450. My drop is... Front is a 2.5" drop spindle with a 1" drop coil. The rear has a 6" drop coil. I also used the Super track bar in the rear and an extreme drop trailing arm crossmember." He wrote above info in another thread... (I edited some "where he bought" info out...) See above limnk in his post also. So in brief... on see ten's truck... Front is a 2.5" drop spindle with a 1" drop coil w/ 255/50-17 Rear has a 6" drop coil w/ 275/50-17 Plus... Super track bar in the rear and an extreme drop trailing arm crossmember. __________________ My Trucks: 1967 Chevrolet Short Wide Box 327 TH350 9" w/3.90 gears paint will be White - Current Project 1967 Chevrolet Custom LWB 283 TH400 3.73 Posi, no-AC, no-PS, no-PB, bench-seat, small-window - mostly orig driver 1967 Chevrolet CST LWB originally a 327 TH400 3.73 Posi AC PS PB, had Buddy Buckets, Small Window - parts truck 1967 Chevrolet CST LWB, 283 MT 3.73 had Buddy Buckets, Panoramic Window - parts truck 2001 Chevrolet 3500 2WD Crew Cab Dually 8.1L Allison White Last edited by 67 cst swb; 09-13-2007 at 01:22 PM.

09-13-2007, 02:15 PM	#16
71see10 Worthless Join Date: Jun 2006 Location: LaFayette, GA Posts: 199	Re: 5" drop... do I need to... Chuckels board name is 72bluz, His real name is chuck,he is my brother in law, lives right next door so I get to play with two trucks all the time!! There is a small story behind the name but thats for a different time. His truck is like mine, Both have 2 1/2 spindles in front with new stock height springs and 5" springs in rear with super track bar,shock relocators. Right now we both have 255/70/15 tires



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09-13-2007, 02:28 PM	#17
71see10 Worthless Join Date: Jun 2006 Location: LaFayette, GA Posts: 199	Re: 5" drop... do I need to... Here is See Ten's truck with the same drop and 15x8 wheels with 275/60 on all four corners.

09-13-2007, 02:29 PM	#18
jkaylor68gmc Senior Member Join Date: Dec 2005 Location: TN Posts: 2,448	Re: 5" drop... do I need to... Thanks a ton. I think I am going to go about 1.5 more in the front, figured 1-inch on the springs, 1.5 on the arms and 2.5 spindles. 5-inches should be plenty. __________________ 1947 International KB-1 1957 Chevy Bel-Air riding low 1962 swb fleetside 2002 Chevrolet Silverado 7-inch lift on 35 Daily driver 2016 Chevy Tahoe Better halves ride

09-13-2007, 02:32 PM	#19
71see10 Worthless Join Date: Jun 2006 Location: LaFayette, GA Posts: 199	Re: 5" drop... do I need to... Tire size comparisons. http://www.1010tires.com/TireSizeCal...?action=submit

09-13-2007, 02:54 PM	#20
72BlckButy Tot Roddin' Join Date: Apr 2005 Location: Mid-MO Posts: 24,461	Re: 5" drop... do I need to... Informative post! __________________ -Nate 1969 CST SWB - Project Blank Slate (4.5/6" ECE Static Drop, 6-lug disc brake upgrade (manual), Billet Specialties Vintec 20x8.5 255/40 (F) 20x10 295/40 (R), 250 I-6) 1960 AMF Skylark - Tot Roddin' (Lowered with custom frame; soon to include custom push bar and interior) 2008 Silverado CrewCab 1LT (5.3L, 3:73, 4x4, LT1, Z-71, Towing Package)

09-13-2007, 03:07 PM	#21
Already Gone 70+ ( Old Skool Club ) Join Date: Nov 2003 Location: Saskatoon, Saskatchewan ,Canada Posts: 9,144	Re: 5" drop... do I need to... I want this post so..TTT __________________ 1972 C10 Custom/Deluxe 613 Highlander 406/700R4 1999 White Tahoe LS 4x2 with Z56 Police Package 1992 K1500 GMC Suburban Members I have personally met: MusicMan70 - HeavyD - ChewyChevy67 - StingRay -71SWB4x4 - 67 Burb - DeadheadNM - too much stuff - bc65 - das601 " Circumsatances Do Not Change Responsibility " " The Sky is not the Limit, Your Mind is." Marilyn Monroe .. RIP Charlie Watts 1941 - 2021

09-13-2007, 09:16 PM	#23
67 cst swb Senior Member Join Date: Nov 2001 Location: Rapid City, SD Posts: 2,281	Re: 5" drop... do I need to... Ok, so here are my thoughts... Front - 2.5" drop spindles w/ 235/75-15's (28.88" tall) - FYI- 235/75-15 is slightly shorter & narrower than a 255/70-15 (29.06") Rear- 5" ECE drop springs w/ 265/70-15's (29.65" tall) Should be exactly what I'm looking for... Thanks for all the input guys... __________________ My Trucks: 1967 Chevrolet Short Wide Box 327 TH350 9" w/3.90 gears paint will be White - Current Project 1967 Chevrolet Custom LWB 283 TH400 3.73 Posi, no-AC, no-PS, no-PB, bench-seat, small-window - mostly orig driver 1967 Chevrolet CST LWB originally a 327 TH400 3.73 Posi AC PS PB, had Buddy Buckets, Small Window - parts truck 1967 Chevrolet CST LWB, 283 MT 3.73 had Buddy Buckets, Panoramic Window - parts truck 2001 Chevrolet 3500 2WD Crew Cab Dually 8.1L Allison White

09-13-2007, 09:22 PM	#24
see ten WTB this ad Join Date: Sep 2004 Location: Lafayette Georgia Posts: 5,074	Re: 5" drop... do I need to... You gotta be careful running a 15" wheel with a drop spindle. Some guys have had wheel/lower control arm interference and some haven't. I know mine rubbed when the wheels were being cut deep at speed. Brian's rub as well. I think a lot of it has to do with offset and wheel weight placement.

09-13-2007, 09:24 PM	#25
67 cst swb Senior Member Join Date: Nov 2001 Location: Rapid City, SD Posts: 2,281	Re: 5" drop... do I need to... Going with stock Rally's at first... Stock 15x7" up front & Stock 15x8's in rear. __________________ My Trucks: 1967 Chevrolet Short Wide Box 327 TH350 9" w/3.90 gears paint will be White - Current Project 1967 Chevrolet Custom LWB 283 TH400 3.73 Posi, no-AC, no-PS, no-PB, bench-seat, small-window - mostly orig driver 1967 Chevrolet CST LWB originally a 327 TH400 3.73 Posi AC PS PB, had Buddy Buckets, Small Window - parts truck 1967 Chevrolet CST LWB, 283 MT 3.73 had Buddy Buckets, Panoramic Window - parts truck 2001 Chevrolet 3500 2WD Crew Cab Dually 8.1L Allison White

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