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 > General Truck Forums > Suspension

Web 67-72chevytrucks.com


Reply
 
Thread Tools Display Modes
Old 12-20-2013, 06:05 PM   #1
jbassC10
Registered User
 
Join Date: May 2013
Location: Russellville AR
Posts: 148
Angry 4/6 drop is giving me problems in the front fender rubbing?

Surely a few of you guys have done the 4/6 drop, same tuck, (mine a 69 with 71 front A-arms/disc) and I'm having a Serious bad RUB on the front end between the upper fender well and the tire.............. so how the heck do I take care of that?

a bigger bump stop maybe on the front end? bad idea probably...
or spacer under the front spring which would take away the awesome look of the drop causing to rise the front end up orrr???

man this is ridiculous. lol
Attached Images
 
jbassC10 is offline   Reply With Quote
Old 12-20-2013, 06:06 PM   #2
jbassC10
Registered User
 
Join Date: May 2013
Location: Russellville AR
Posts: 148
Re: 4/6 drop is giving me problems in the front fender rubbing?

Holy Gee'z my Iphone pictures are killing me when I upload them here. anywaysss
jbassC10 is offline   Reply With Quote
Old 12-20-2013, 06:10 PM   #3
lolife99
67-72 parts collector,…
 
lolife99's Avatar
 
Join Date: Nov 2002
Location: Mid-MO
Posts: 22,700
Re: 4/6 drop is giving me problems in the front fender rubbing?

Quote:
Originally Posted by jbassC10 View Post
Holy Gee'z my Iphone pictures are killing me when I upload them here. anywaysss
Take the iphone pic sideways with the lower button in your right hand.
That will fix the upside down issue.
__________________
Keith

Convert to disc brakes.
http://67-72chevytrucks.com/vboard/s...d.php?t=444823
lolife99 is offline   Reply With Quote
Old 12-20-2013, 06:11 PM   #4
BB72CHEVKT
Junior Member
 
BB72CHEVKT's Avatar
 
Join Date: Mar 2007
Location: Hideaway, TX
Posts: 4,950
Re: 4/6 drop is giving me problems in the front fender rubbing?

That does not look like it should rub.
Attached Images
 
__________________
71 Suburban 350/700R4 Project Trixie
72 CHEVY,Highlander,SWB,396,T400
BB72CHEVKT is offline   Reply With Quote
Old 12-20-2013, 06:16 PM   #5
lolife99
67-72 parts collector,…
 
lolife99's Avatar
 
Join Date: Nov 2002
Location: Mid-MO
Posts: 22,700
Re: 4/6 drop is giving me problems in the front fender rubbing?

You need:
1) a front wheel with more backspace
2) a shorter tire
3) or both.
__________________
Keith

Convert to disc brakes.
http://67-72chevytrucks.com/vboard/s...d.php?t=444823
lolife99 is offline   Reply With Quote
Old 12-20-2013, 06:27 PM   #6
Fatherof3
Registered User
 
Fatherof3's Avatar
 
Join Date: Nov 2013
Location: North Bend Wa
Posts: 355
Re: 4/6 drop is giving me problems in the front fender rubbing?

Looks like you could run a narrower tire on that rim
__________________
65 C20 292 4spd 4:56 Eaton HO52
Fatherof3 is offline   Reply With Quote
Old 12-20-2013, 07:55 PM   #7
jbassC10
Registered User
 
Join Date: May 2013
Location: Russellville AR
Posts: 148
Re: 4/6 drop is giving me problems in the front fender rubbing?

That picture above is the day of the drop was put on: therefore the springs had "settled in" hardly at all.
I'm running 45x275x20 in the front and 45x295x20 rear. And the back spacing was customed ordered for front and rear at 4.5 offset or negative offset if i'm not mistaken. Not expecting this problem sadly. So no go on order a wheel with less better backspacing $$$$$

Curious? What about a spring spacer? That'd help wouldn't it?...well I guess depending on how big I go.... and of course switch out the 4 inch drop spring with a 3?

and what kind of narrower are you thinking? lol

It's just bugging me cause I see a lot of you guys running a 4/6 drop and why is it giving me this much trouble?
It's just crazy, It runs fine, but when I put much or any little Flex in the front spring/end it rubs... (big sigh boys) :-\
jbassC10 is offline   Reply With Quote
Old 12-20-2013, 08:07 PM   #8
screaminchevypickup
Laid Back
 
screaminchevypickup's Avatar
 
Join Date: Apr 2010
Location: mcloud ok
Posts: 2,658
Re: 4/6 drop is giving me problems in the front fender rubbing?

Most guys are running at least a 5" bs with that drop and a 20" wheel..
__________________
72 chevy swb


Direct dealers for..

Vintage Air, Porterbuilt, Billet Specialties,Budnik wheels ,eddie motorsports, raceline wheels, intro wheels, Dakota Digital, precision, unisteer, Trimparts, and many many more... Laid Back Recreations.. Full restoration shop and full paint and body..

Kyle

http://67-72chevytrucks.com/vboard/s...d.php?t=574629
screaminchevypickup is offline   Reply With Quote
Old 12-20-2013, 08:16 PM   #9
jbassC10
Registered User
 
Join Date: May 2013
Location: Russellville AR
Posts: 148
Re: 4/6 drop is giving me problems in the front fender rubbing?

ouch and ouch man. lol I was close but not at the exact point. :-\ boo.
Well I'm looking and I can get a 3 inch drop spring for around 85$ dollars. being a 3 inch drop spring it'll settle in a little and still give me a drop look but also give me another 1ish inch or so lift to help the rub. ..that's one opposition.
jbassC10 is offline   Reply With Quote
Old 12-20-2013, 10:17 PM   #10
special-K
Special Order

 
special-K's Avatar
 
Join Date: Nov 2004
Location: Mt Airy, MD
Posts: 85,851
Re: 4/6 drop is giving me problems in the front fender rubbing?

Who made the front springs? If you could run 4" drop springs before you can still use 4" springs. Yours are probably more like 5" drop now if they've settled.
__________________
"BUILDING A BETTER WAY TO SERVE THE USA"......67/72......"The New Breed"

GMC '67 C1500 Wideside Super Custom SWB: 327/M22/3.42 posi.........."The '67" (project)
GMC '72 K2500 Wideside Sierra Custom Camper: 350/TH350/4.10 Power-Lok..."The '72" (rolling)
Tim

"Don't call me a redneck. I'm a rough cut country gentleman"

R.I.P. ~ East Side Low Life ~ El Jay ~ 72BLUZ ~ Fasteddie69 ~ Ron586 ~ 67ChevyRedneck ~ Grumpy Old Man ~
special-K is offline   Reply With Quote
Old 12-20-2013, 11:28 PM   #11
jbassC10
Registered User
 
Join Date: May 2013
Location: Russellville AR
Posts: 148
Re: 4/6 drop is giving me problems in the front fender rubbing?

""Western Chassis Deluxe - Complete Lowering Kit With Coils Only - Drop: 4" Front / 6" Rear""


What do you mean??
Are you saying go with 3" inch drop springs instead of the 4" inch they gave me with the 4/6? therefore going with a 3"inch they would settle to 4"inch drop not a 5" like you said after settling from a 4"??

Or would it be better to go with a spacer? I can go with a 2 inch spring spacer for around $50 bucks where I can get the coil springs for around $90ish
jbassC10 is offline   Reply With Quote
Old 12-21-2013, 07:39 AM   #12
jondancer
Registered User
 
Join Date: Jul 2010
Location: central michigan
Posts: 1,194
Re: 4/6 drop is giving me problems in the front fender rubbing?

Most guys run a 2.5" drop spindle with a 1.5" drop spring to get a 4" drop in the front, it will ride and handle much better this way.
jondancer is offline   Reply With Quote
Old 12-21-2013, 08:27 AM   #13
Elliot949
Registered User
 
Elliot949's Avatar
 
Join Date: Sep 2010
Location: Winfield, Ks.
Posts: 4,162
Re: 4/6 drop is giving me problems in the front fender rubbing?

I would say the 275 profile on the front is the main issue here... You would probably be good with 255...
Elliot949 is offline   Reply With Quote
Old 12-21-2013, 09:40 AM   #14
72BlckButy
Tot Roddin'
 
72BlckButy's Avatar
 
Join Date: Apr 2005
Location: Mid-MO
Posts: 24,461
Re: 4/6 drop is giving me problems in the front fender rubbing?

It's a safe bet that the wheel backspacing is your main problem. The front wheels stick to far out.

Were the wheels ordered before the drop?
When the wheels were ordered did you account for the 1.5" widening of the front end with the addition of disc brakes?
__________________
-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)
72BlckButy is offline   Reply With Quote
Old 12-21-2013, 10:39 AM   #15
cdowns
Senior Member
 
cdowns's Avatar
 
Join Date: Jan 2003
Location: daytonabeach
Posts: 22,956
Re: 4/6 drop is giving me problems in the front fender rubbing?

you can flare the wheelwells to get some extra clearance forthose rims


old school guys will roll them with a baseball bat
__________________
71c-10 350/2004r/4:11 lowered3/4 longbed/dead by hurricane

MEANING OF DEATH::::: SOMEBODY ELSE GETS YOUR STUFF

DONT BELIEVE EVERYTHING YOU THINK

TAKE MY ADVISE;I DON'T USE IT ANYWAY
cdowns is offline   Reply With Quote
Old 12-21-2013, 11:27 AM   #16
PanelDeland
I am a Referee of life.
 
PanelDeland's Avatar
 
Join Date: Jun 2000
Location: Greensboro N.C.
Posts: 13,992
Re: 4/6 drop is giving me problems in the front fender rubbing?

Quote:
Originally Posted by jondancer View Post
Most guys run a 2.5" drop spindle with a 1.5" drop spring to get a 4" drop in the front, it will ride and handle much better this way.
The added shimming to get alignment may also be causing a slightly wider track adding to the "rub".
__________________
The 47-present Chevrolet and GMC Truck Message Board Network,it's owners,moderators,members,and associates of any type should not be held responsible for my opinion.
You can't fix stupid,not even with duct tape.
"My appearance is due to the fact that "GOD" does punish you for having too much fun!"
Barrett-Jackson has perfected alchemy,they make rust into gold!
"You can lead a horse to water but you can't saddle a duck"
"Cleverly disguised as a 'Responsible Adult'
"Sometimes your Knight in shining armor is just a retard in tinfoil"
PanelDeland is offline   Reply With Quote
Old 12-21-2013, 11:29 AM   #17
lolife99
67-72 parts collector,…
 
lolife99's Avatar
 
Join Date: Nov 2002
Location: Mid-MO
Posts: 22,700
Re: 4/6 drop is giving me problems in the front fender rubbing?

Quote:
Originally Posted by jbassC10 View Post
Surely a few of you guys have done the 4/6 drop, same tuck, (mine a 69 with 71 front A-arms/disc) and I'm having a Serious bad RUB on the front end between the upper fender well and the tire.............. so how the heck do I take care of that?

a bigger bump stop maybe on the front end? bad idea probably...
or spacer under the front spring which would take away the awesome look of the drop causing to rise the front end up orrr???

man this is ridiculous. lol
Tell us more about what you did with your suspesnion?
Any drop spindles installed?

Here's a page with Western Chassis parts:
http://www.andysautosport.com/chevro...stern_chassis/
Which kit did you order?

I know on no front spring that will safety drop the front 4" with ONLY a coil spring change,... and successfully be able to align the front.
Plus your truck doesn't look that low in the front.
I assume your truck has coil springs on the rear also?
Did you change shocks?
Use rear shock relocators?
An adjustable track bar?

Give us more info or pics of your suspension.
Still my opinion,... you have the wrong wheel AND tire combo upf front.
Your rear wheels tuck way more than the front tires do.
__________________
Keith

Convert to disc brakes.
http://67-72chevytrucks.com/vboard/s...d.php?t=444823
lolife99 is offline   Reply With Quote
Old 12-21-2013, 11:32 AM   #18
lolife99
67-72 parts collector,…
 
lolife99's Avatar
 
Join Date: Nov 2002
Location: Mid-MO
Posts: 22,700
Re: 4/6 drop is giving me problems in the front fender rubbing?

A 20x8 Torq Thrust II will easily tuck with the correct backspace,...
(this is air'd out,... that's why it's cambered in)
20x8 with 5.25" BS.
Attached Images
 
__________________
Keith

Convert to disc brakes.
http://67-72chevytrucks.com/vboard/s...d.php?t=444823
lolife99 is offline   Reply With Quote
Old 12-21-2013, 08:20 PM   #19
mac808
Senior Member
 
mac808's Avatar
 
Join Date: Nov 2010
Location: Honolulu Hawaii
Posts: 313
Re: 4/6 drop is giving me problems in the front fender rubbing?

I'm going with the wheel/tire fitment theory. In the pic, you can see light hitting the tread, indicating that the wheel is quite a ways out compared to most people running a 5.25 bs set up. A 4" drop, regardless of brand shouldn't rub at all if the wheel/tire combo is correct.
mac808 is offline   Reply With Quote
Old 12-21-2013, 08:23 PM   #20
mac808
Senior Member
 
mac808's Avatar
 
Join Date: Nov 2010
Location: Honolulu Hawaii
Posts: 313
Re: 4/6 drop is giving me problems in the front fender rubbing?

And it actually looks like its got some positive camber. It doesn't look like it would camber in at compression but rather be at a vertical angle that would cause it to go straight up into the fender, rather than 'lean' into the wheel well like lolife's pic illustrates.
mac808 is offline   Reply With Quote
Old 12-21-2013, 10:05 PM   #21
jrdv
Registered User
 
jrdv's Avatar
 
Join Date: Apr 2000
Location: new mexico
Posts: 948
Re: 4/6 drop is giving me problems in the front fender rubbing?

I think your cheapest option is just a front tire size change. A lower profile front tire gives you a little rake. Rake is not a bad thing!
jrdv is offline   Reply With Quote
Old 12-21-2013, 10:09 PM   #22
72BlckButy
Tot Roddin'
 
72BlckButy's Avatar
 
Join Date: Apr 2005
Location: Mid-MO
Posts: 24,461
Re: 4/6 drop is giving me problems in the front fender rubbing?

Here's a shot of my 69 rubbing a 4.5/6" ECE drop and 6-lug disc brake upgrade.


Name:  image.jpg
Views: 6411
Size:  101.8 KB
__________________
-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)
72BlckButy is offline   Reply With Quote
Old 12-21-2013, 10:10 PM   #23
72BlckButy
Tot Roddin'
 
72BlckButy's Avatar
 
Join Date: Apr 2005
Location: Mid-MO
Posts: 24,461
Re: 4/6 drop is giving me problems in the front fender rubbing?

Name:  image.jpg
Views: 5231
Size:  106.6 KB
__________________
-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)
72BlckButy is offline   Reply With Quote
Old 12-21-2013, 10:12 PM   #24
72BlckButy
Tot Roddin'
 
72BlckButy's Avatar
 
Join Date: Apr 2005
Location: Mid-MO
Posts: 24,461
Re: 4/6 drop is giving me problems in the front fender rubbing?

My wheel and tire specs with BS for the wheels. The wheels were ordered to custom fit the 4.5/6" drop and disc brake upgrade on my truck.


'69 CST-10 "Blank Slate" Wheel/Tire Specs:

Billet Specialties Vintec's
Front: 20x8.5" w/ 5.5" BS
- Center Bore: 3.430
- Bolt Pattern: 6 on 5.5"
Rear: 20x10" w/ 4.75" BS
- Center Bore: 4.250 (due to the center hub on the rear axle of my '69 [meas. 3.5"; BS only offered 3.43])
- Bolt Pattern: 6 on 5.5"

Toyo Proxes S/T ii's
Front: 255/40-20
Rear: 295/40-20
__________________
-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)
72BlckButy is offline   Reply With Quote
Old 12-22-2013, 07:06 PM   #25
jbassC10
Registered User
 
Join Date: May 2013
Location: Russellville AR
Posts: 148
Re: 4/6 drop is giving me problems in the front fender rubbing?

Yeah, the wheels were ordered before drop sadly. I was thinking so fast I guess. And I bet the gentlemen who helped me do the figuring didn't catch that glimpse of trouble like I didn't counting the disc width or the width/275 either. :-\ ouch.
And you guys are touching some great points I'm keeping in mind. The front wheels got a huge "pucker" soo if I run thinner that'll for sure help like you said. (255 as you said)

I order from:
Andy's AutoSport online:
15005 Concord Cir
Morgan Hill CA 95037
US
1-800-419-1152

( Western Chassis ) Western Chassis Deluxe - Complete Lowering Kit With Coils Only - Drop: 4" Front / 6" Rear 71-72 C10 Early Classic 530.30 58.94 589.24
Total $589
Link: http://www.andysautosport.com/chevro...s00000437.html

[[it states "Coils only" but spindles came along]]
So, it came with if I remember correctly by looks a 2.5 drop spindles an 1.5 springs.

I ordered the shocks from "early classics" ...I didn't do any relocation on the shock brackets they fit fine. As of this time I'm in the fabrication of building a custom Track Bar by the descriptions/photos I've seen online. (length, etc.)

So: I've got it at the alignment shop taking a somewhat en-expensive fix as trial. I say that because the right tire doesn't have much of any problem rubbing when I flex the suspension pulling into the driveway or curb to study it. The left although does, so by eye I can tell I've got a ->pretty bad positive Amber to the left wheel and that's one possible chance why I'm rubbing when I flex it much at all.

So a week or two from now I should see and feel the difference after the alignment...and of course Christmas Vkay is over for the workers at the shop! lol
jbassC10 is offline   Reply With Quote
Reply

Bookmarks

Tags
4/6 drop, fender, rub

Thread Tools
Display Modes

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 09:53 AM.


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