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Author Topic:   Metric lower A arm
RACEINMUD
Dirt Freak

Total posts: 323
posted January 06, 2005 07:58 AM  
Hi All, Been pondering this for a while and thought I'd ask for help. I believe my spindles are Impala, very large with a large rotor. Put my car in the wall and bent the passanger lower a arm. Put another on from a metric. Then I noticed the drivers side lower a-arm has the ball joint welded like it is just settting on top of the arm which makes it a lot higher than my stock one. My Question, which side should I change to make them the same? Make sense? Thanks, Race

GARYAL
Dirt Forum Racer

Total posts: 94
posted January 06, 2005 11:48 AM  
if the car was working i would put it back like it was. putting it on top would help but i question the strength.

racin78p
Dirt Freak

Total posts: 333
posted January 08, 2005 04:42 AM  
Ditto! Run the same set up, if you were happy with it. BUT, I really don't think I would have my ball joints on top. They go through an awful lot, and that doesn't sound to safe to me. Welding them in, yes but up from the bottom they will mount!

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racin78p
if it ain't fun, then don't run

77k
Dirt Maniac

Total posts: 174
posted January 08, 2005 06:58 PM  
ck pm

kevinwardracing
Dirt Full Roller

Total posts: 35
posted January 11, 2005 05:23 AM  
You want to keep the lower a-arm flat (parallel to the track) and a ball joint welded to the top would not be the way to do it, nor is it the best way to raise the moment (roll) center. What you ran into was obviously someone’s idea on how to raise the mc but your Impala spindle set up is the way to go with the metric chassis and its control arms. You don't even need taller ball joints with this setup unless you're running asphalt where 3/8" taller ball joint might gain an additional 2" (maybe), getting into the 4” range. You been running about 2” off the deck and that’s real close to being right…it is a major improvement over stock.

RACEINMUD
Dirt Freak

Total posts: 323
posted January 12, 2005 10:36 AM  
Thanks all! It is always good to get other racers input, especially when I don't know what todo. Thanks, Race

bobaluuu
Dirt Freak

Total posts: 474
posted January 12, 2005 06:46 PM  
so from what I've been able to gather from you guys the impala spindles will almost correct the moment center for a 3/8ths track. whereas the drop spindles will only lower the frame? If this is so,(and no other mods were needed) does this contribute to excessive rf camber change and ackerman?I heard Bump goes really bad. also what rotors and calipers would you run? Will be using tubular uppers from u.b. machine if this matters.
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Light it up, Baby!

[This message has been edited by bobaluuu (edited January 16, 2005).]

[This message has been edited by bobaluuu (edited January 16, 2005).]

bobaluuu
Dirt Freak

Total posts: 474
posted January 16, 2005 09:34 PM  
b.t.t.

outlaw#03
Dirt Roller

Total posts: 25
posted January 19, 2005 09:26 PM  
Run the spindles, roters, calipers & hoses off the Impala. The roters and calipers are bigger than the metric ones. They weigh a little more but I think the added braking is worth it.

kevinwardracing
Dirt Full Roller

Total posts: 35
posted January 20, 2005 11:53 AM  
I have zero bump steer with these spindles. Last year with the stock metric, I had bunches. Two different cars, but same chassis. This year, the only thing we did was cut out the top pockets and put in hide-away spacer because new rules allowed 'em. When we welded the top pocket back I might (?) have moved the RF toward the center of the car 1/2" to take out some of the positive camber built into the spindles. But I don't recall if we did it. If we did that might account for why we don't have bump steer and other do. Might keep that in mind as a fix to the problem if it does show up.

Also, we run the stock (smaller) metric break calipers and do it with an 1 1/2 to 2" piece of metal shim made just for the purpose that they sell at Motor Sports of Kansas City @(913)334-0477. You'll need two and I see they're getting close to an unreasonable $20 a piece for them so you have to ask yourself if the pound (if that) of unsprung weight at each wheel is worth the cost. I'm sure other race dealers sell 'em as well. Also, if you've got access to a good fabractor then just get one and make 50...sell 'em at a resonable price and we'll all be calling for a set.

Good luck.

[This message has been edited by kevinwardracing (edited January 20, 2005).]

RACEINMUD
Dirt Freak

Total posts: 323
posted March 07, 2005 03:06 PM  
Ok, I did a search and no luck. I have found my spindles to take the Moog k6141 ball joint. My question, is there a ball joint with the same taper that will fit in a metric lower arm without having to enlarger the mounting hole? Thanks, Race

racin78p
Dirt Freak

Total posts: 333
posted March 14, 2005 11:25 AM  
Moog K6145 TALL bottom ball joint is what I use. No reaming required. I just put them in a week ago.

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racin78p
if it ain't fun, then don't run

bobaluuu
Dirt Freak

Total posts: 474
posted March 14, 2005 04:21 PM  
78 says there is/ I was gonna say there wasnt but theres the number.

[This message has been edited by bobaluuu (edited March 14, 2005).]

    

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