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Achieving high camber/caster for road race

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343sharpstick View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote 343sharpstick Quote  Post ReplyReply Direct Link To This Post Posted: Jul/11/2018 at 12:39pm
Some good info on ball joints here...
https://www.qa1.net/tech/documents/Ball-Joint-Dimensions.pdf

This measures taper as a ration. I think the bottom Ball joint on an AMC is 2:12. This is the dimension used for the lower GM ball joints, but need to check the other relevant dimensions.
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304-dude View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote 304-dude Quote  Post ReplyReply Direct Link To This Post Posted: Jul/11/2018 at 12:48pm
I sent Farna a pdf on tolerances on ball jointa are the 2nd loosest ball joints as for axel play. The upper is worst to deal with than the lower. Since the UCA is shorter in length the angle of deflection is amplified.

I will see if I can attach the pdf as an attachment, and post in this reply.

Here is the link...

http://theamcforum.com/forum/uploads/1422/BallJointTolerances.pdf

Here Is the Moog version which is what what I go by... I must have misplaced until now. Hopefully Farna has this one, as I may have given both to him.

http://theamcforum.com/forum/uploads/1422/Moog_Ball_joint_spec_chart.pdf

Edited by 304-dude - Jul/11/2018 at 1:11pm
71 Javelin SST body
390 69 crank, 70 block & heads
NASCAR SB2 rods & pistons
78 Jeep TH400 w/ 2.76 Low
50/50 Ford-AMC Suspension
79 F150 rear & 8.8 axles
Ford Racing 3.25 gears & 9" /w Detroit locker
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nothingface5384 View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote nothingface5384 Quote  Post ReplyReply Direct Link To This Post Posted: Jul/19/2018 at 6:30pm
Would this also work on a 75 hornet.. extended control arm
1972 Pro-Toured Buick Skylark Twin turbo efi 355 v8

1973 Pro-Toured Ford Maverick 302 v8

1975 Stock AMC Hornet 232 I6

1978 Stock Plymouth Volare 225 /6
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304-dude View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote 304-dude Quote  Post ReplyReply Direct Link To This Post Posted: Jul/19/2018 at 7:17pm
Originally posted by nothingface5384 nothingface5384 wrote:

Would this also work on a 75 hornet.. extended control arm


can be done on all 70 up AMC cars, but... its not required, unless you are doing an upper arm outward relocation like me.

I explained in my thread why I ended up extending the arm. It was planned to add more room for wider rims and tires.

Technically the tilt from pushing out the lower spring location, by moving the upper arm out, you get about .500" extra room over stock. Plus you can run modern rims. Example... 2015 Mustang 18" rims have a 1.24" offset. I am using a 1.25" spacer to center the wheel properly. I have 7.25" of usable space between spring and front spindle mounting face, when both upper and lower arms are moved 1" outward. Enough to fit 10" wide rims, and will be equal to my rear in track width, since I have swapped in a 65" wide truck rear end, making it squared at the corners, instead of trapizoidal, like it was originally, with a track width of arouhd 59" front / 60" rear. Which makes the car squirrely.

It's the only way I could shorten the wheel base, to get a better track width to wheel base ratio. Making a big car seem smaller.

71 Javelin SST body
390 69 crank, 70 block & heads
NASCAR SB2 rods & pistons
78 Jeep TH400 w/ 2.76 Low
50/50 Ford-AMC Suspension
79 F150 rear & 8.8 axles
Ford Racing 3.25 gears & 9" /w Detroit locker
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