im going to be replacing my lower arms on 01 a6 fwd 2.8 this weekend (and maybe upper) and as i looked for vids and tech articles they all have the torque amounts.

how do i go about making sure i torque the bolts down to the correct specification?

i have seen some torque wrenches but since i dont have a lift ill be using the jack that came with the car+ 2 more jacks & i dont think that torque would fit as it seems to be quite huge. (maybe its just magnified?)

Walmart.com: Torin Jacks 1-2" Adjustable Torque Wrench: Automotive

is there any way to know ive reached the correct torque without a torque wrench? or do they have smaller ones?

i was just planning to tighten the bolts with a regular wrench.

how necessary is this wrench?
thanks for the help. i have no problem buying it i just dont see how ill be able to use it under the car as its so big

 

Don't use jacks --
Use good jack stands!
And get a good floor jack

As for the torque - you need a good torque wrench to make that happen
Smaller ones - sure there are many different sizes -
get the one that covers the range you need.
the 10 to 150 is normal automotive.

 

Remember that you can rent them at most auto parts stores.