Re: A body front steer rack
[Re: NoFrills]
#2732581
01/12/20 09:47 PM
01/12/20 09:47 PM
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Joined: Jan 2003
Posts: 20,327 Park Forest, IL
slantzilla
Too Many Posts
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Too Many Posts
Joined: Jan 2003
Posts: 20,327
Park Forest, IL
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We're working on mine right now. We've made some changes and it seems like we have really helped Ackermann and bump steer. Mine has home made steering arms and a Pinto rack mounted inside the K frame.
Last edited by slantzilla; 01/13/20 01:38 AM.
"Everybody funny, now you funny too."
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Re: A body front steer rack
[Re: NoFrills]
#2732665
01/13/20 10:53 AM
01/13/20 10:53 AM
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Joined: Jan 2003
Posts: 10,081 Frostbitefalls MN (Rocky&Bullw...
gregsdart
I Live Here
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I Live Here
Joined: Jan 2003
Posts: 10,081
Frostbitefalls MN (Rocky&Bullw...
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I did a full conversion on a 65 Dart. Two, actually. You need a narrowed (-5 inch) rack from RJ race cars. About 225. Go to ForABodys only in the early a section and search for gregsdart posts. The narrowed rack will allow the use of stock lower and upper control arms. If you go Pinto , then stock length works. Pic of partially done unit. Ackerman correct, max bump steer 1/8 inch.Took a LONG time to get it right!
Last edited by gregsdart; 01/13/20 11:10 AM.
8.582, 160.18 mph best, 2905 lbs 549, indy 572-13, alky
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Re: A body front steer rack
[Re: slantzilla]
#2732693
01/13/20 12:42 PM
01/13/20 12:42 PM
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Joined: Sep 2003
Posts: 442 montana
BANDIT
mopar
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mopar
Joined: Sep 2003
Posts: 442
montana
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I plan on doing my 64 Coronet similar to yours, except I flipped steering arms side to side and then used original tie rod holes as an added bolt on for the extended arm that will be longer and closer to the tire. Saw the set up on a buddy’s car. Can’t remember who made his tho. What thickness of steel is that? Did you have to change upper control arms to get camber back? I’ll see if I can find the pictures I took of his. Jim.
64 Dodge Coronet 440. In progress 1998. Dodge Avenger. 8.35@165. 4400 DA 1980 Plymouth Arrow 572 Hemi. 242" Mullis Dragster. 6.90@ 200mph
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Re: A body front steer rack
[Re: gregsdart]
#2732714
01/13/20 02:26 PM
01/13/20 02:26 PM
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Joined: Jan 2003
Posts: 1,622 westerly, ri. usa
440lebaron
top fuel
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top fuel
Joined: Jan 2003
Posts: 1,622
westerly, ri. usa
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Hello, if you make the tie rod and lower control am pivot points the same length it will eliminate bump steer
all parts are sold as is, all parts are considered used no warranties or returns paypal/check/money order, shipping is from zip 02891, buyer pays paypal fees 24% IRS 1099A plus 3% of part price, check/money order preferred site is not monitored 24/7 there might be a delay in response
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Re: A body front steer rack
[Re: NoFrills]
#2732927
01/14/20 12:30 PM
01/14/20 12:30 PM
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Joined: Jan 2004
Posts: 8,635 fredericksburg,va
cudaman1969
master
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master
Joined: Jan 2004
Posts: 8,635
fredericksburg,va
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Did one on a 68 dart back in late 70s. Later spool type K-frame, sway bar thru type. Pinto rack, reversed lca. Bolted inside the k and links almost straight out. Turning no problem, no shimmy backing, straight as a string at 131 mph. Secret is keeping the rack and links straight to the lca. The trouble starts when you angle the links back (tie rods). Perfect if the swivel on rack is in line with the torsion bar, it follows the same arc. I duplicated how it was on the Pinto, Ford already spent the millions getting it right. My buddy still has the car, might get him to take some pics.
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Re: A body front steer rack
[Re: cudaman1969]
#2732944
01/14/20 01:12 PM
01/14/20 01:12 PM
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Joined: Mar 2003
Posts: 2,540 PA
moparacer
master
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master
Joined: Mar 2003
Posts: 2,540
PA
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Subscribing as I need to switch to a rack on my 68 Dart.
Any more pics and info would be great!
67 Barracuda street/bracket car 11.27-119 68 Dart 502 BB 8.70s-152 414 cid SB Dragster 7.65-174
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Re: A body front steer rack
[Re: NoFrills]
#2733020
01/14/20 04:12 PM
01/14/20 04:12 PM
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Joined: Sep 2003
Posts: 442 montana
BANDIT
mopar
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mopar
Joined: Sep 2003
Posts: 442
montana
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The position of the outer tie rod looks way better than just swapping arms side to side. Notice how it is more of a straight shot from rack to arm. I tried just swapping arms once, after car launched and wheels came down, bump steer took over and ended up in other lane. OP’s original pic isn’t too bad for location of tie rod pickup point, but I Would NOT ever do the stock A arm swap again. Jim.
64 Dodge Coronet 440. In progress 1998. Dodge Avenger. 8.35@165. 4400 DA 1980 Plymouth Arrow 572 Hemi. 242" Mullis Dragster. 6.90@ 200mph
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Re: A body front steer rack
[Re: moparacer]
#2733085
01/14/20 07:08 PM
01/14/20 07:08 PM
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Joined: Jan 2003
Posts: 3,122 Auburn WA
Dave_J
master
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master
Joined: Jan 2003
Posts: 3,122
Auburn WA
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Subscribing as I need to switch to a rack on my 68 Dart.
Any more pics and info would be great! Meeee 3.
Retired, US ARMY 1973-1994 ASE mechanic, Electrical 1994-1997 Retired GTE/VERIZON/FRONTIER 1997-2015
Posting cheap tech help (CRAP) here since Nov 97, 1000's of posts, some may be good.
03 Suzuki Burgman 650(Burger King) Scooter 65 Formula S Cuda 78 Little Red Express Truck 98 Buick Regal (wifes car)
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Re: A body front steer rack
[Re: Dave_J]
#2733099
01/14/20 07:43 PM
01/14/20 07:43 PM
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Joined: Jan 2003
Posts: 20,327 Park Forest, IL
slantzilla
Too Many Posts
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Too Many Posts
Joined: Jan 2003
Posts: 20,327
Park Forest, IL
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Yes, ideally you want the rack back far enough the tie rods are straight as possible. On mine we are pretty much stuck since I am not going to change the K frame. Mine will be a ton better than it was.
"Everybody funny, now you funny too."
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Re: A body front steer rack
[Re: slantzilla]
#2733179
01/14/20 11:32 PM
01/14/20 11:32 PM
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Joined: Jan 2003
Posts: 3,122 Auburn WA
Dave_J
master
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master
Joined: Jan 2003
Posts: 3,122
Auburn WA
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Not sure I'm following this well. I think it said to swap the LCA left to right? Would this not put the brake strut rod in the wrong angles. What spindles are you guys using for this mod for front steer?
Retired, US ARMY 1973-1994 ASE mechanic, Electrical 1994-1997 Retired GTE/VERIZON/FRONTIER 1997-2015
Posting cheap tech help (CRAP) here since Nov 97, 1000's of posts, some may be good.
03 Suzuki Burgman 650(Burger King) Scooter 65 Formula S Cuda 78 Little Red Express Truck 98 Buick Regal (wifes car)
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Re: A body front steer rack
[Re: Dave_J]
#2733190
01/15/20 12:13 AM
01/15/20 12:13 AM
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Joined: Jan 2003
Posts: 20,327 Park Forest, IL
slantzilla
Too Many Posts
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Too Many Posts
Joined: Jan 2003
Posts: 20,327
Park Forest, IL
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No, you swap steering arms, not LCA's.
"Everybody funny, now you funny too."
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Re: A body front steer rack
[Re: slantzilla]
#2733208
01/15/20 01:26 AM
01/15/20 01:26 AM
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Joined: Jan 2003
Posts: 3,122 Auburn WA
Dave_J
master
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master
Joined: Jan 2003
Posts: 3,122
Auburn WA
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No, you swap steering arms, not LCA's. Makes more sense. I'll read thru both posts again.
Retired, US ARMY 1973-1994 ASE mechanic, Electrical 1994-1997 Retired GTE/VERIZON/FRONTIER 1997-2015
Posting cheap tech help (CRAP) here since Nov 97, 1000's of posts, some may be good.
03 Suzuki Burgman 650(Burger King) Scooter 65 Formula S Cuda 78 Little Red Express Truck 98 Buick Regal (wifes car)
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Re: A body front steer rack
[Re: dart games]
#2733217
01/15/20 03:08 AM
01/15/20 03:08 AM
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Joined: Jan 2003
Posts: 6,163 Melbourne , Australia
LA360
master
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master
Joined: Jan 2003
Posts: 6,163
Melbourne , Australia
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The bump steer would be horrendous, as has already been mentioned, the steering arms should be slightly past the ball joint centerline.
Alan Jones
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Re: A body front steer rack
[Re: NoFrills]
#2733667
01/16/20 03:47 PM
01/16/20 03:47 PM
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Joined: Jan 2003
Posts: 3,847 N.E. Ohio
6bblFLASH
master
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master
Joined: Jan 2003
Posts: 3,847
N.E. Ohio
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I could be wrong but i believe the tie rods should be mounted further out. For the tires not to scrub when turning the line from ball joint center to tie rod center should be running in towards the center of the rear. So for the new location it would be where the red dot is on the picture. Yes you are right,to get Akerman the tie-rods ball joints and basically the differential yoke forms a triangle. So the tie rod needs to be out pretty far,I had to use a different offset wheel on my 68` Lower ball joints are swapped on bothe cars. Cuda is drag only so could care less about Akerman drives superb at 137,hard on the brakes ,bouncing from a wheelstand. 68` is streetcar. drives really well,no complaints or unusual problems. The basic challenges are ::::::: Rack wants/needs to be where the engine is Tie-rod needs to be where the tire/wheel is. Caster is an issue too........ to get all 3 at once. On the Cuda the engine is back 9" so it allowed perfect bump-steer ZERO.... 68` EVERYTHING is in the way, has some bump-steer but you don`t feel it. Been over 130 mph on the 2-lane many times. Drives just fine.
70` Cuda`,440 6BBL Jerico,Dana 4.56 Still on 93 Pump Gas 9.87 @ 136/1.31-60ft.`09 Mopar Nationals PASSON PERFORMANCE "Stick-Shift" Champ! 2013 StickShift Challenge Winner@ Mopar Nationals!
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