To box or not

[PNY PWR]

Got my Ford HD UCA's today. They are identical to my stock ones except for the bushing is stiffer. Would I gain anything by boxing them before installing? They will be going on w/ MM lowers and new axle bushings from MM as well. GR2 shocks and gas-adjust quads. MM recommended using the Ford HD uppers, so I did.

I got a new bolt kit for the lowers from 50resto. I can't seem to fing UCA bolts, any ideas or links? Guess I could just buy the same size grade 8's.

 

[PNY PWR]

nothing?

 

[Mavrick]

I would box them personally, especially if you have a welder, it wouldn't cost much. Only the price of some steel.

I was going to box all my stock control arms, but decided to go with the MAC kit with both uppers and lowers.

 

[PNY PWR]

thanks, I guess I'll just go ahead and box them. I have some plate around the same thickness and a welder. I was expecting them to be stronger than the stock ones. Like those boxed Steeda's or something. At least thicker material.

 

[89MustangGX]

Sure, go ahead.

And yes, you are right -- they're identical to stock except with better bushings. MM seems to like them, but I went with 'other' aftermarket myself.

 

[351 82GT]

While we are on the subject...just exactly how do you box control arms?
Do you just weld a piece of metal across the open ends on the bottom?

 

[89MustangGX]

While we are on the subject...just exactly how do you box control arms?
Do you just weld a piece of metal across the open ends on the bottom?

Basically, yes. You're just turning what is a u-shaped piece of metal into a box-shaped piece of metal. The box is much stronger.