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#701 | |
Registered User
Join Date: Apr 2001
Location: DALLAS,TX
Posts: 21,983
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Re: Make it handle
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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#702 |
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Location: Missoula, MT
Posts: 934
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Re: Make it handle
On this thread you have covered allot of great information, it has really opened my eyes to some of the things that can be done to make these trucks more enjoyable, and i was hoping you could address a question for me. What should a person do to counteract wheel hop on a leaf spring setup that wants to go around a cormer and is not just interested in going 0-60 in a straight line? also would a panhard bar benefit a leaf setup? thanks.
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#703 |
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Join Date: Apr 2009
Location: Seattle, WA
Posts: 85
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Re: Make it handle
I don't know if everyone can see their pictures, but here are their times from last night. thought it would be cool to post up on here. http://www.facebook.com/#!/photo.php...type=1&theater
Rob, you guys kicked some butt there the other night. I hope I can make it out some tuesday to watch you guys teach those import guys a thing or two. ![]()
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Build Thread: Frankenburb .._________ /____|__|__\___ l__(o)______(O)_l Cruizin' Thru... Low N Slow |
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#704 | |
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Location: Dandridge, Tn. USA
Posts: 2,226
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Re: Make it handle
Quote:
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#705 | |
Senior Member
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Location: Dandridge, Tn. USA
Posts: 2,226
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Re: Make it handle
Quote:
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#706 | |
Slots go on anything!
Join Date: May 2003
Location: Richardson, TX
Posts: 5,957
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Re: Make it handle
Quote:
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1974 Jimmy- 5.3/4L80e/NP241 |
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#707 | |
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Join Date: Apr 2001
Location: DALLAS,TX
Posts: 21,983
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Re: Make it handle
Quote:
Same spindles currently installed Remove the cut sbc springs & swap in Moog's # 6102 1015 lbs/in Swap to the notched x-member to retain the current drop w/o the travel limitations Keep the current 1.25" 1-ton solid sway bar Upgrade to the No Limit R&P set-up Swap to Porterbuilts SqBody Truck arm rear set-up or CPP's (PB's for adjustability to still load it down & better T/A's) Bilstein replacement shocks or adjustable shocks The only other thing I recommended that will hurt the wallet is different a-arms for improved geometry since we're limited on caster.
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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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#708 |
Registered User
Join Date: Sep 2006
Location: Covington, WA
Posts: 770
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Re: Make it handle
I just finished using that Front Suspension Geometry Pro and I'm not happy with where the roll center is. The design is all hypothetical at this point, I'm just finishing it up on the computer before I start building it. I've got all of the parts though in a box but placement on the frame is yet to be determined. Any idea on lowering my roll center? Currently on the corner optimizer at entry the roll center is at 3.94, midturn is 2.410, and corner exit is 4.982. Any suggestions on how to get this lower? I read in Herb Adams book on how it should be between -1 and 3. Any suggestions on where I should start?
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#709 |
Senior Member
Join Date: Aug 2002
Location: Plymouth, MA
Posts: 891
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Re: Make it handle
Rob, great thread. Reading through this, I am now going to scrap my triangulated 4-bar I was working on and go back to a trailing arm setup with a watts link. I already have an ece center crossmember installed. I am going to build the trailing arms using the ball style joints like on your 55. My question is about the actual arms. The factory arms kick up at the back, but I noticed your arms are straight. Does this make a difference? I was going to build them from 2.5" x 2.5" 1/4"wall steel. Btw my engine is set back roughly 4", which hopefully will help weight distribution.
Thanx for all the info I am sure I will have some more questions once I get started. Posted via Mobile Device
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1972 Blazer body...need to get a thread started for the rest of the story Last edited by NPilot1975; 08-14-2011 at 07:36 PM. |
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#710 |
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Join Date: Jul 2011
Location: Middleburg, NC
Posts: 14
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Re: Make it handle
I am new to the site. I love it. It gives us truck guys the resource we need that Pro-Touring.com doesn't.
I do have a question for this thread. I have a '87 c10 short bed stepside. It was a prostreet project for someone else and I got a good deal on it. The PO removed the narrowed 9" rear and 4-link setup so I have nothing in the rear except the (removed) original leafs and shackels. I want to convert to trailing arms with jack bolts. Am I wasting my time looking to swap from a 67-72 and modifying it or should I just save my money and buy a kit from you or HotRods to Hell? I will be going the kit route on the front but money saved now helps. Thanks,
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1987 C-10 Stepside shortbox project "Rosie" ![]() Lee W |
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#711 |
Senior Member
Join Date: Aug 2002
Location: Plymouth, MA
Posts: 891
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Re: Make it handle
K5warwagon, I haven't done the mod, but I know you can use 67-72 parts to change your truck to trailing arms. If you are on a budget I would suggest getting a crossmember from Porterbuilt, cpp, ride tech, or early classiscs and use the factory arms. If you have the money you can buy a kit from any of the above that has all the parts.
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1972 Blazer body...need to get a thread started for the rest of the story Last edited by NPilot1975; 08-15-2011 at 11:22 AM. |
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#712 | |
Senior Member
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Location: Dandridge, Tn. USA
Posts: 2,226
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Re: Make it handle
Quote:
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GoodGuys 2012 Pro-Truck Champion ![]() 2012 Truckin' Throwdown Champion GoodGuys 2011 National Champion ![]() 2011 Truckin' Throwdown Champion GoodGuys 2010 National Champion ![]() Proud to put our products up against all others! Last edited by robnolimit; 08-15-2011 at 04:03 PM. |
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#713 |
Senior Member
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Location: Dandridge, Tn. USA
Posts: 2,226
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Re: Make it handle
K5 this is an easy enough swap. I'd use the stock stuff, you'r in nascar country so I'd guess there is plenty avail. Check with Speedway or Motorstate on the spring jacks. - But remember, your frame is not the same as a 67-72, so there will be some mods needed to get the springs where you want them. You may want to consider coil-overs, it could be easier, and cost about the same.
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#714 |
Slots go on anything!
Join Date: May 2003
Location: Richardson, TX
Posts: 5,957
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Re: Make it handle
This may sound out of place, but what will cutting the rear of the springs do to payload capacity? There are 8 or 9 leaves in the rear spring, so cutting a couple shouldn't kill it too much. Scot and I had discussed the rear sway bar; I think he may have forgot to list it. Speaking of, what would be the best way to mount it given the amount of drop (6/8)?
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#715 |
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Join Date: Sep 2006
Location: Covington, WA
Posts: 770
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Re: Make it handle
Hey Rob,
Any advice on roll centers? Not sure if my post got missed, I know you're busy. I'm figuring mine out on front suspension geometry pro and it seems off. Brendan |
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#716 |
Senior Member
Join Date: Aug 2002
Location: Plymouth, MA
Posts: 891
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Re: Make it handle
Rob, I noticed that the trailing arms that you build are straight without the kickup at the end. Is there any disadvantage to this? I assume the kickup is to put that portion level to the ground, but just wondered??? Also, if you used straight trailing arms would there be any advantage to mounting them on top of the axle tubes on a lowered truck? Would this work the geometry at all as far as relation to the front mounts? or would it just completely mess it up. Thanx again.
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1972 Blazer body...need to get a thread started for the rest of the story |
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#717 | |
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Join Date: Jul 2011
Location: Middleburg, NC
Posts: 14
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Re: Make it handle
Quote:
Thanks Rob. Working on a package deal off of a parts truck right now.
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1987 C-10 Stepside shortbox project "Rosie" ![]() Lee W |
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#718 | |
Senior Member
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Location: Dandridge, Tn. USA
Posts: 2,226
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Re: Make it handle
Quote:
What is your caster range? and how about camber gain?
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#719 | |
Senior Member
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Location: Dandridge, Tn. USA
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Re: Make it handle
Quote:
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#720 |
Senior Member
Join Date: Aug 2002
Location: Plymouth, MA
Posts: 891
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Re: Make it handle
Perfect, I am going to build some straight arms and saddles (under mount). Do you think 2.5"x2.5" 1/4" wall tubing would be fine?
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#721 | |
Registered User
Join Date: Sep 2006
Location: Covington, WA
Posts: 770
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Re: Make it handle
Quote:
I did try adjusting my upper arm lower and was able to get the change into the -1 to 3 range for RC by lowering the rear of the a arm mounts (they were completely horizontal even with 8 degrees of caster). The numbers may be a pain to duplicate because I'm running some allpro lower a arms that have been completely cut apart due to quality issues when I got them and some speedway motorsports upper arms. I can email you my file if that would be easier. You did answer my question though, thanks so much for the guidance. I've got the metal on order and all of the parts in, so it should be a fun learning curve. Brendan |
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#722 |
Senior Member
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Location: Dandridge, Tn. USA
Posts: 2,226
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Re: Make it handle
I use three pieces, in a step. 2 1/2" tube, 2 1/4" tube, and 2" tube, all with 1/8" wall. This is plenty strong enough. 1/4" wall is a bit heavy. don't forget to try to get the unsprung wieght down.
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#723 | |
Senior Member
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Location: Dandridge, Tn. USA
Posts: 2,226
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Re: Make it handle
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#724 |
Senior Member
Join Date: Aug 2002
Location: Plymouth, MA
Posts: 891
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Re: Make it handle
Rob, how much overlap for each step or does the 2" run all the way from end to end with the additional tubing added? Thanx again, easier to do it right from the start.
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#725 |
Senior Member
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Location: Dandridge, Tn. USA
Posts: 2,226
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Re: Make it handle
about 3", we drill a 1/2" hole in all sides, 2" back from the end of the larger tube of the overlap to plug weld as well as the end seam. If you need some parts I have inserts for the 2x2 tube with a 1 1/4" thread inside, 18.00 ea. ! 1/4" male thread monster ball pivit knuckles, 39.50 ea. and 3/16" formed steel mounts with hardware (for the monster balls) are 16.00 ea. 147 for all parts needed for the front mount/adjuster assy.
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