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Author Topic:   Longer Balljoints
PBR
Dirt Roller

Total posts: 23
posted April 03, 2001 09:47 PM
Does anyone know the part number for the longer upper ones for a metric car. And does the a-frame have to be modified for it to bolt up.

owracer
Dirt Maniac

Total posts: 103
posted April 03, 2001 09:57 PM
AFCO has a longer upper joint, but it requires some modifications to use it. The hole in the control arm for the ball joint has to be enlarged and the spindle will require reaming for the ball joint stud to fit.The p/n is 20032-1. I don't know of a longer joint that is a direct replacement.

PBR
Dirt Roller

Total posts: 23
posted April 05, 2001 09:56 PM
Well is it worth the extra work to raise the rollcenters. I am runnig completely stock front suspension pieces. Any other ideas that preety much look stock would be great.
Thanks!

2RACE63
Dirt Roller

Total posts: 12
posted April 06, 2001 10:40 PM
You may or may not need to reem your spindles. Let me know what spindle you have and can can let you know if it will work for you.

PBR
Dirt Roller

Total posts: 23
posted April 06, 2001 11:46 PM

I am using the stock metric spindles.
Thanks for any suggestions!

owracer
Dirt Maniac

Total posts: 103
posted April 07, 2001 04:14 PM
I know the upper requires reaming, not sure on the lower.I use the 20032-1 on the upper of my car and a 20036 on the lower.Both of these have to be reamed.

2RACE63
Dirt Roller

Total posts: 12
posted April 07, 2001 09:41 PM
PBR, I will be able to give you the details to your response on the metric spindles on Monday.

owracer
Dirt Maniac

Total posts: 103
posted April 07, 2001 11:38 PM
If you are using metric spindles, the upper has to be reamed to accept the afco joint. The seat in the spindle isn't large enough for the ball joint stud.You will need a ream with a 2 inch per foot taper to ream the seat for ball joint to fit. The afco p/n is 80771 for taper ream.

REDNECKL64
Dirt Roller

Total posts: 6
posted April 08, 2001 11:47 AM
[QUOTE]Originally posted by owracer:
owracer,your 17 car done a **** of a job up in Calver City.When you take a full stock body car and beat a bunch of limited sportsman you have done something.You going to just run Milan or go down to Garnertown and rece in the sand?

2RACE63
Dirt Roller

Total posts: 12
posted April 09, 2001 08:33 PM
OWRACER is right, to use the 20032-1 ball joint you will have to ream the upper spindle boss with the 2" taper reamer. The same holds true for the lower ball joint(20038-1) commonly used in this configuration. If you ream the spindles the ball joints will only seat in the spindle 3/8" to a 1/4". You won't have near enough engagement and will easily bend ball joints with light contact. I know there are racers out there that will run these joints without reaming the spindles. To those racers I wish them luck.
Here are the specifics on the dimensions. The -Small Dia- refers to the beginning taper of the stud and the -Large Dia- refers to the ending taper of the stud. The Press Dim. refers to the press in dimension of the ball joint to the a-frame.

Stock Upper(20032); Large Dia:.632" Small Dia:.509" Taper:2"/ft. Thread:1/2-20 Pivot Dim.:.420" below flange.
20032-1 Raised Upper; Large Dia:.719" Small Dia:.599" Taper:2"/ft. Thread:1/2-20 Pivot Dim:.460"

Stock Lower(20039); Large Dia:.788" Small Dia:.626" Taper:2"/ft. Thread:9/16-18 Press Dim:.20900" Pivot Dim:.500" below flange
20038-1 Raised Lower; Large Dia:.873" Small Dia:.692" Taper:2"/ft. Thread:5/8-18 Press Dim:1.9725" Pivot Dim:.500" below flange

So is all of this worth it? Yes. Your roll center in your car from the factory is somewhere below ground. This is at least a step in the right direction to get the roll center above ground.

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