The 1947 - Present Chevrolet & GMC Truck Message Board Network







Register or Log In To remove these advertisements.

Go Back   The 1947 - Present Chevrolet & GMC Truck Message Board Network > 47 - Current classic GM Trucks > The 1967 - 1972 Chevrolet & GMC Pickups Message Board

Web 67-72chevytrucks.com


Reply
 
Thread Tools Display Modes
Old 06-05-2007, 06:19 PM   #1
ante_up13
Registered User
 
Join Date: May 2004
Location: Here
Posts: 167
LWB 3.5-5 drop Problems

I lowered my truck 3 years ago. I used CPP 2.5" drop spindles and ECE 1" drop coils in front and 5" coils in the rear. Initially, I threw some 255/60/R15 on the front. Those rubbed at every corner with the body roll and on dips. I didn't have the money for new wheels so I dropped the tire size up front to 235/60/R15. These don't rub on corners but rub when hitting a big dip. I think they look funny to. My front end will also slam the pavement on big freeway dips(so thats what they mean by slammed...lol).

I am in the market for some new tires and now I have the money for some cheaper wheels. Does anyone with a longbed and the same drop have similar issues that they resolved or will it be a non stop thing. I tried the local tire shop and they don't know. I also don't want to go to a higher end shop to get some good advice because of money. I know I need the wheels to have more backspacing to bring them into the wheel well more, but will the front end keep slamming the ground on large dips? I am figuring the smaller tires up front aren't helping this but will 255/60 fix this?

If it is going to keep bottoming out, I will go ahead and put stock coils up front. Anybody drop their longbed with 2.5 spindles and 5" rear coil drop?

If new wheels will work...what kind of specs are needed? I want to stay with 15in wheels. Thinking of the American Racing BAJA polished (six lug)
__________________
ante_up13 is offline   Reply With Quote
Old 06-05-2007, 07:28 PM   #2
Evans
Registered User
 
Evans's Avatar
 
Join Date: Feb 2007
Location: Dallastown , Pa
Posts: 261
Re: LWB 3.5-5 drop Problems

Are you sure your shocks aren't bottoming out ??? I'm not bottoming out with @ 3" cut off my factory front springs... the 2 1/2" drop spindles shoudn't have anything to do with the bottoming out.
Evans is offline   Reply With Quote
Old 06-05-2007, 07:43 PM   #3
ante_up13
Registered User
 
Join Date: May 2004
Location: Here
Posts: 167
Re: LWB 3.5-5 drop Problems

I installed the shock relocators...or are u thinking my shocks are bad?
__________________
ante_up13 is offline   Reply With Quote
Old 06-05-2007, 07:52 PM   #4
ante_up13
Registered User
 
Join Date: May 2004
Location: Here
Posts: 167
Re: LWB 3.5-5 drop Problems

The ride doesn't seem like the shocks are bad at all...I got the shocks, relocators, supertrack bar and coils from ECE
__________________

Last edited by ante_up13; 06-05-2007 at 07:52 PM.
ante_up13 is offline   Reply With Quote
Old 06-14-2007, 03:03 AM   #5
ante_up13
Registered User
 
Join Date: May 2004
Location: Here
Posts: 167
Re: LWB 3.5-5 drop Problems

Thanks for all the input!
ante_up13 is offline   Reply With Quote
Old 06-14-2007, 03:42 AM   #6
fourty1
Registered User
 
fourty1's Avatar
 
Join Date: Dec 2006
Location: washington state
Posts: 144
Re: LWB 3.5-5 drop Problems

Without seeing pics,...maybe you need to add a 1/2"- 1' spacer on the front coils springs ( to raise up the front 1/2 - 1" and add 1" spacer on the rear coils.. you would still have 3" drop in front and 4" drop in the rear,..
cheaper than wheels & tires....
Plus figure in the weight of the driver & passenger, losing 1" is nothing in the long run, plus it should make the ride easier on the back if you know what I mean..
just offering help.,,
jim
__________________
1941 Chevy 1/2 ton Street Rod: 327 cu,/350 auto, 'Stinger ' - JULY 2007 CUSTOM CLASSIC TRUCK magazine.

1967 Chevy 3/4 ton standard bed, 350 cu./400 auto,
w/ 83 - 3:43 rear end...sips gas....
fourty1 is offline   Reply With Quote
Old 06-14-2007, 06:56 AM   #7
70c10
67-72 Addict!
 
70c10's Avatar
 
Join Date: Feb 2002
Location: The TAX State!
Posts: 7,856
Re: LWB 3.5-5 drop Problems

My longbed has 2 1/2" drop spindles (will be adding a 1 1/2" drop spring soon) and 4" rear springs (will be adding 1" block soon) and it doesn't bottom out or rub with my 275/60/15's on all 4 corners. Check your shocks. Do you have a sway bar?
__________________
Jim

1970 C/10 Fleetside w/Ghost Flames
Lowered 4.5" front and 4" rear (Raked)
355/350 Turbo w/shift kit
10" Redneck Performance Verter w/2500 stall
Hooker Super Comps part#2808-1
Performer RPM Air-Gap
12 Bolt w/3:73 gears- Eaton Posi
Comp Cams XE262 with 1.6 Crane Energizers, Road Demon 625 and Brodix IK 180 heads
70c10 is offline   Reply With Quote
Old 06-14-2007, 09:12 AM   #8
BowTieOgre
Registered User
 
Join Date: Mar 2006
Location: Pensacola, FL
Posts: 1,461
Re: LWB 3.5-5 drop Problems

Do you think your backspacing has anything to do with the rubbing? I mean if others are running the same chassis and drop (or more) then I would think the next thing to look at would be your BS.
__________________
1986 C10 - LWB, 305/700r4, posi, vortec heads
BowTieOgre is offline   Reply With Quote
Reply

Bookmarks


Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT -4. The time now is 10:25 AM.


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, vBulletin Solutions Inc.
Copyright 1997-2022 67-72chevytrucks.com