does it make sense to box the rear upper control arms when you have 2 uppers? Or should I just box the lowers? 
boxing control arms
- Thread starter yellow wagon
- Start date
I'm going to just box the lowers, so ignore my question, thanks 
davids impalas
Member
boxing control arms and reinforcment is for lowriders
with hydraulics thats the only reason i personnally would box any of the arms
and by running 2 bananna bars / upper control arms did you remove the panhard bar ?
my personal preference is to use a wishbone set up instead of the 2 bananna bars , either way the panhard bar is pointless when you do that
just wondering your reason for boxing them and running 2 uppers
no trying to be smart just wondering
with hydraulics thats the only reason i personnally would box any of the arms
and by running 2 bananna bars / upper control arms did you remove the panhard bar ?
my personal preference is to use a wishbone set up instead of the 2 bananna bars , either way the panhard bar is pointless when you do that
just wondering your reason for boxing them and running 2 uppers
no trying to be smart just wondering
Correct me if I am wrong, but if you use 2 banana bars on top in their original position, you still need a panhard bar because the upper bars are not at enough angle to properly hold the rear axle in place side to side. I thought upper bars needed to be 30-40 degrees outward, like the A body stuff.
I'l be running 2 stock uppers with an adjustable panhard bar. I want the 2 uppers for strength overall once the car sees some track time 
62409wagon
Well Known Member
Correct me if I am wrong, but if you use 2 banana bars on top in their original position, you still need a panhard bar because the upper bars are not at enough angle to properly hold the rear axle in place side to side. I thought upper bars needed to be 30-40 degrees outward, like the A body stuff.
correct, Yes you still need a panhard bar.
no1:
If the car sees track time, yes I would box the uppers and lowers. Polyurethane bushings is a good idea also. Panhard bar should be retained.
definately need the panard bar. the upper arms run straight forward. a wishbone is another option if the panard is in the way, but kinda complicated, and not neccesary. i would also recommend you brace the upper control arm crossmember.
you guys with the slang terms for rearend parts crack me up. I'm picturing a couple kids ordering at the icecream truck........"i'll have a jackpot and a chunk, he wants a hogshead, she'll have a pumpkin.....and OH, we need some banana bars.
you guys with the slang terms for rearend parts crack me up. I'm picturing a couple kids ordering at the icecream truck........"i'll have a jackpot and a chunk, he wants a hogshead, she'll have a pumpkin.....and OH, we need some banana bars.
CDNpontiac409guy
Banned
I'm picturing a couple kids ordering at the icecream truck........"i'll have a jackpot and a chunk, he wants a hogshead, she'll have a pumpkin.....and OH, we need some banana bars.
HEEE HEEE!!!
oh, yes, of course you need to retain the panhard bar
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I decided to box the lowers, not the uppers. I'll brace the control arm cross member as well with a plate