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#1 |
Senior Member
Join Date: Feb 2003
Location: Wichita KS
Posts: 610
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Re: Dropmember in a 69 C10
Does the C4 suspension make for a wider track at all than the AirRide A-arms?
If I were to go with this setup (I love it by the way), I would more than likely end up running coilover front suspension instead of bags. Reguardless, I will still be running a 15" front wheel (15X5) and I know that these trucks already have a bit of an issue with the front wheels being inward an awful lot (mine is an 87). I find interest in this setup mainly because I am a simplicity freak, and if I could eliminate that huge crossmember, stock A-arms, and steering box, for all of this clean cut and simple stuff, it would really clean up my under hood appearance. I'd guess that it'd also perform alot better at high speed than stock stuff too, and as of right now I'll be looking at 130+ in the 1/4 mile on stock junk. This is what I'm faced with currently... ![]()
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~Steve~
Friesen High Performance Auto and Graphics Toy: 87 Shortwide, 406 smallblock with a little boost My 87 buildup Daily Driver: 99 Sierra SLE 4X4. Black on Black and harder than hell to keep clean. ![]() |
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#2 | |
Senior Member
Join Date: Dec 2003
Location: Mesa,Az
Posts: 3,981
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Re: Dropmember in a 69 C10
Quote:
The overall width of the C4 (hub face to hub face w/rotors installed) is 63". It is a bit wider than the Dropmember with stock or Air Ride arms. About the 15's... I didn't know they made 15" wheels anymore ![]() As for spacing the wheels to get the desired track width, it does have some effects on the steering scrub radius and will also add some extra stress to the hub assembly (2" spacers wouldn't add an extreme amount, but it will add some). I am assuming you already have the wheels you want to use, or else you one could always buy some with the proper backspacing.
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www.PorterbuiltFabrication.com Phone: 480-297-2621 E-mail: sales@pbfab.com Find us on FaceBook under Porterbuilt Fabrication Specializing in Chassis and Suspension Components for your Classic Chevrolet Truck. We offer components from the following manufacturers: Porterbuilt Accuair Ridetech (Air Ride Technologies) Air Lift Wilwood Intro Unisteer ECE Gotta Show Air Lift Borgeson CPP Supporting this forum since 2003! |
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#3 |
Senior Member
Join Date: Feb 2003
Location: Wichita KS
Posts: 610
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Re: Dropmember in a 69 C10
Well, I've already got 15" telestars, but if I could scrounge up the dough for the setup I could probably shoot for some larger ones (centerline now makes them up to 20's.) I wouldn't be totally worried about the extra stress, as this will get very few miles put on it (nice weather/weekend toy) so it won't see daily driving abuse. My main goal is to go fast in a straight line, so I like to stick to 15's up front but I'd also like to get a nice set of 18/20's for street use, so I'll just have to match up the combinations before I'm really ready to start ordering things.
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~Steve~
Friesen High Performance Auto and Graphics Toy: 87 Shortwide, 406 smallblock with a little boost My 87 buildup Daily Driver: 99 Sierra SLE 4X4. Black on Black and harder than hell to keep clean. ![]() |
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#4 |
Registered User
Join Date: Mar 2006
Location: Milford, MI
Posts: 148
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Re: Dropmember in a 69 C10
if u want to run the c4 stuff with 15's u may have an issue if you use all the spindles and brakes from th c4.. just a guess but something to look into
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Meticulous Fabrications Milford Michigan |
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#5 |
Registered User
Join Date: Apr 2001
Location: DALLAS,TX
Posts: 21,977
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Re: Dropmember in a 69 C10
C4's came w/both 12 & 13" brake assemblies depending on the year model. The 12" brakes w/15's should work w/no problems.
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67SWB-B.B.RetroRod 64SWB-Recycle 89CCDually-Driver/Tow Truck 99CCSWB Driver All Fleetsides @rattlecankustoms in IG Building a small, high rpm engine with the perfect bore, stroke and rod ratio is very impressive. It's like a highly skilled Morrocan sword fighter with a Damascus Steel Scimitar..... Cubic inches is like Indiana Jones with a cheap pistol. |
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#6 |
Senior Member
Join Date: Feb 2003
Location: Wichita KS
Posts: 610
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Re: Dropmember in a 69 C10
After some thought, I suppose a guy could always run a 2" spacer to get the track width back to about stock. By spacer I mean the billet machined ones that have separate mounting points for where the spacer bolts to the hub, and where the wheel bolts to the spacer, not some cheesy pile of crap that requires super long studs.
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~Steve~
Friesen High Performance Auto and Graphics Toy: 87 Shortwide, 406 smallblock with a little boost My 87 buildup Daily Driver: 99 Sierra SLE 4X4. Black on Black and harder than hell to keep clean. ![]() |
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#7 |
Registered User
Join Date: Jul 2006
Location: the netherlands europe
Posts: 4,335
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Re: Dropmember in a 69 C10
even those spacers you mention are hard on the wheelbearings and steering
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i got a job again and having fun at it too idea's for the trucks and the order of things to do are taking shape and get closer to being realized , a few more months and i be able to start building for real i complete 2 of the trucks intoo running fashion one custom and one basicly stock the thirth will be sacrificed for parts |
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#8 | |
Senior Member
Join Date: Dec 2003
Location: Mesa,Az
Posts: 3,981
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Re: Dropmember in a 69 C10
Quote:
The rotor face to rotor face width on the regular Dropmember is 60". The width of the Dropmember C4 is 62" from rotor face to rotor face. Pull your wheels make some measurements and do some math and you will know exactly where the wheel and tire will sit. As for the weight... the regular Dropmember with all hardware was 115lbs. that is without rack, control arms, shocks, spindles and brakes. The DropmemberC4 weighed in at 90lbs. that too is without rack, control arms, coil-over or shockwave, spindles and brakes. The C4 suspension components are much lighter than the stock or aftermarket tubular truck components... but I have not yet weighed em to find out the difference.
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www.PorterbuiltFabrication.com Phone: 480-297-2621 E-mail: sales@pbfab.com Find us on FaceBook under Porterbuilt Fabrication Specializing in Chassis and Suspension Components for your Classic Chevrolet Truck. We offer components from the following manufacturers: Porterbuilt Accuair Ridetech (Air Ride Technologies) Air Lift Wilwood Intro Unisteer ECE Gotta Show Air Lift Borgeson CPP Supporting this forum since 2003! |
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#9 | |
Señor Member
Join Date: May 2002
Location: Edge of the world
Posts: 5,367
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Re: Dropmember in a 69 C10
Quote:
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#10 |
Outlandish Trends - FL
Join Date: Jul 2005
Location: Orlando
Posts: 1,396
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Re: Dropmember in a 69 C10
Nathan, thank you for taking the time to snap the pics for me. The front wheels are not as far inboard as I had expected them to be. Looks good!
Congrats on the newborn!!! That's one hefty baby!
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#11 |
Happy to be here
![]() Join Date: Mar 2000
Location: Cypress, TX
Posts: 39,023
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Re: Dropmember in a 69 C10
Steve,
Please help me understand what 15" wheels has to do with going fast in a straight line?
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#12 |
A guy with a truck
Join Date: Sep 2005
Location: Germany, for now
Posts: 5,920
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Re: Dropmember in a 69 C10
Weight transfer.
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-Chris Instagram _elgringoloco_ '70 Short-Wide How to: Ruin a perfectly good C10 ‘70 Blazer ConversionHow To: Ruin a Perfectly Good 4wd '72 Highlander How To: Ruin a Perfectly Good K/5 (SOLD) '72 Blazer 2WD How to: Ruin a perfectly good Blazer (SOLD) '05 Yukon Daily Driven (not so stock) Yukon (SOLD) ‘07 Yukon Denali (daily) Members met list: SCOTI, darkhorse970, 67cheby, 67cheby'sGirl, klmore, porterbuilt, n2billet, Fastrucken, classicchev, Col Clank, GSFMECH, HuggerCST, Spray-Bomb, BACKYARD88, 5150, fine69, fatbass, smbrouss70, 65StreetCruiser, GAc10boy |
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#13 | |
Senior Member
Join Date: Feb 2003
Location: Wichita KS
Posts: 610
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Re: Dropmember in a 69 C10
Quote:
As you know the main intention of my truck is to perform well on the drag strip, even if it is still going to be streetable. On the initial setup I am looking for mid 11's @ 125-130 mph, but in a season or two I plan on stepping it up a notch. I don't really want to be pushing 7"+ wide billet wheels down the track at 140+ mph. Tires that wide have a tendency to drive themselves wherever they please. Ideally, I'd like to have the capability to run no wider than a 5" rim on the front for the race track, and if need be run a 18" wheel on the street. You see what I'm saying?
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~Steve~
Friesen High Performance Auto and Graphics Toy: 87 Shortwide, 406 smallblock with a little boost My 87 buildup Daily Driver: 99 Sierra SLE 4X4. Black on Black and harder than hell to keep clean. ![]() |
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#14 |
Señor Member
Join Date: May 2002
Location: Edge of the world
Posts: 5,367
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Re: Dropmember in a 69 C10
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#15 |
Senior Member
Join Date: Dec 2003
Location: Mesa,Az
Posts: 3,981
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Re: Dropmember in a 69 C10
I don't believe it's the diameter Steve is concerned with, but the WIDTH. Tracking is the main reason all the drag cars run the skinny fronts... when the front tires touch the strip at those speeds the least amount of tire patch that contacts the strip means the least amount of steering response. On the strip that can be a good thing.
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www.PorterbuiltFabrication.com Phone: 480-297-2621 E-mail: sales@pbfab.com Find us on FaceBook under Porterbuilt Fabrication Specializing in Chassis and Suspension Components for your Classic Chevrolet Truck. We offer components from the following manufacturers: Porterbuilt Accuair Ridetech (Air Ride Technologies) Air Lift Wilwood Intro Unisteer ECE Gotta Show Air Lift Borgeson CPP Supporting this forum since 2003! |
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#16 |
Registered User
Join Date: Jul 2006
Location: the netherlands europe
Posts: 4,335
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Re: Dropmember in a 69 C10
and dont forget skinier tires have less roll resistance and make the frontend lighter .
i believe most dragslicks are made for 15 inchers they need that large sidewall for the slingshot : the tire squats and start small and wide giving maximum traction and tork at the start and grows bigger and thinner down thew track to give more speed at top end (would be supriced if any red blooded american wouldnt know this fact from his favourite motor sport ) i agree that when its youre truck its youre own decision about how to built it .
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i got a job again and having fun at it too idea's for the trucks and the order of things to do are taking shape and get closer to being realized , a few more months and i be able to start building for real i complete 2 of the trucks intoo running fashion one custom and one basicly stock the thirth will be sacrificed for parts |
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#17 |
Senior Member
Join Date: Feb 2003
Location: Wichita KS
Posts: 610
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Re: Dropmember in a 69 C10
Thanks for clarifying my view. I should have put it in general terms, not just my specific application.
This brings up another question Porterbuilt, not sure if it's been asked, have you checked out the weight difference? I'd love to see how much I'd lose going from the stock X-member, steering box, A-arms, and such, to the dropmember, rack, and either the strong arms or full aluminum vette stuff. Granted, I'm driving a truck with the aerodynamics of a barn door, but losing some weight on the very front would sure be cool!
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~Steve~
Friesen High Performance Auto and Graphics Toy: 87 Shortwide, 406 smallblock with a little boost My 87 buildup Daily Driver: 99 Sierra SLE 4X4. Black on Black and harder than hell to keep clean. ![]() |
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#18 |
Outlandish Trends - FL
Join Date: Jul 2005
Location: Orlando
Posts: 1,396
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Re: Dropmember in a 69 C10
Aren't the front wheels on most top fuel dragsters larger than 15"?
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#19 |
Senior Member
Join Date: Feb 2003
Location: Wichita KS
Posts: 610
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Re: Dropmember in a 69 C10
I'd like to see some 17 or 18 X 3-4" wheels that are still strong AND that look decent. I see no need to argue with a bunch of guys about how to build MY vehicle, especially when it is not value added argument. All you're trying to tell me is that you see no difference in 15X4" front wheels and 18X8" front wheels on a drag racing application.
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~Steve~
Friesen High Performance Auto and Graphics Toy: 87 Shortwide, 406 smallblock with a little boost My 87 buildup Daily Driver: 99 Sierra SLE 4X4. Black on Black and harder than hell to keep clean. ![]() Last edited by 1987 Shortwide; 09-29-2006 at 04:40 PM. |
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#20 | |
Registered User
Join Date: Apr 2001
Location: DALLAS,TX
Posts: 21,977
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Re: Dropmember in a 69 C10
Quote:
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67SWB-B.B.RetroRod 64SWB-Recycle 89CCDually-Driver/Tow Truck 99CCSWB Driver All Fleetsides @rattlecankustoms in IG Building a small, high rpm engine with the perfect bore, stroke and rod ratio is very impressive. It's like a highly skilled Morrocan sword fighter with a Damascus Steel Scimitar..... Cubic inches is like Indiana Jones with a cheap pistol. |
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#21 |
Senior Member
Join Date: Feb 2003
Location: Wichita KS
Posts: 610
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Re: Dropmember in a 69 C10
This is good input SCOTI, I think I'll take a looksy.
Thanks.
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~Steve~
Friesen High Performance Auto and Graphics Toy: 87 Shortwide, 406 smallblock with a little boost My 87 buildup Daily Driver: 99 Sierra SLE 4X4. Black on Black and harder than hell to keep clean. ![]() |
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#22 |
Senior Member
Join Date: Dec 2003
Location: Mesa,Az
Posts: 3,981
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Re: Dropmember in a 69 C10
Here's some pics of steering linkage and then some of the floor/cab mods that will be necessary if you want to put the rear on the ground with a 29" diameter tire.
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www.PorterbuiltFabrication.com Phone: 480-297-2621 E-mail: sales@pbfab.com Find us on FaceBook under Porterbuilt Fabrication Specializing in Chassis and Suspension Components for your Classic Chevrolet Truck. We offer components from the following manufacturers: Porterbuilt Accuair Ridetech (Air Ride Technologies) Air Lift Wilwood Intro Unisteer ECE Gotta Show Air Lift Borgeson CPP Supporting this forum since 2003! Last edited by PBFAB.COM; 10-06-2006 at 12:49 AM. |
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#23 |
Senior Member
Join Date: Dec 2003
Location: Mesa,Az
Posts: 3,981
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Re: Dropmember in a 69 C10
more
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www.PorterbuiltFabrication.com Phone: 480-297-2621 E-mail: sales@pbfab.com Find us on FaceBook under Porterbuilt Fabrication Specializing in Chassis and Suspension Components for your Classic Chevrolet Truck. We offer components from the following manufacturers: Porterbuilt Accuair Ridetech (Air Ride Technologies) Air Lift Wilwood Intro Unisteer ECE Gotta Show Air Lift Borgeson CPP Supporting this forum since 2003! |
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#24 |
Senior Member
Join Date: Dec 2003
Location: Mesa,Az
Posts: 3,981
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Re: Dropmember in a 69 C10
And one of the kit with a trans crossmember.
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www.PorterbuiltFabrication.com Phone: 480-297-2621 E-mail: sales@pbfab.com Find us on FaceBook under Porterbuilt Fabrication Specializing in Chassis and Suspension Components for your Classic Chevrolet Truck. We offer components from the following manufacturers: Porterbuilt Accuair Ridetech (Air Ride Technologies) Air Lift Wilwood Intro Unisteer ECE Gotta Show Air Lift Borgeson CPP Supporting this forum since 2003! Last edited by PBFAB.COM; 10-06-2006 at 12:51 AM. |
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#25 |
Registered User
Join Date: Mar 2005
Location: Las Vegas, NV
Posts: 84
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Re: Dropmember in a 69 C10
Hey Nathan I have a few questions for you. 1. What kind of headers are you using and do they have any ground clearance problems? I wanted to go with Doug's headers but I think they may be too long. Do any of your other customers use Doug's with their dropmember?
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