I just made 3 subframe aligning bolts and replaced my front subframe (dsg 4motion upgrade thread)
Subrame was out of line when I pulled it down, but more importantly the front
stretch bolts weren’t half as tight as the back set of bolts, I had complained to alignment shop that it pulls and falls into the road camber, even when the camber pitches to the centre,
I also adjust the s/wheel to stay in line, and my readouts are also red on o/s/r wheel.
I have stance+ coilovers, okayish.. 275/40/20’s on et45… which is horrible as the centre of the wheel is over the centre line of the steering pivot line, which adds to it pulling on the crap domed roads in berks.
So i found bits of rubber under my big subframe bolt washers, a noticeable amount at the front two, tells me my subframe is definitely tramping about.
So I would concern about these garages that “adjust” your subframe.. why .. ?
Subframe bolts are 12mm 10.8 strength, the highest bolt metal strength capable, pull them up to 150nm then a full 180’ turn past that…. I used a 2ft breaker and a 3ft tube to pull them up nice, I guarantee those bolts would not do that again …
I’d say thats a good 200-250ft/lb put on those bolts maybe more…
I bet your alignment garages will not retighten your subframe to that capacity, unless you supply new bolts and the tightening sequence..!!?
Bolts are £12 each from vw’s
Here’s the old ones I used with some wheel nuts I turned in lathe and dabbed some braze to secure… they pulled the subframe up nicely and front subframe lined up perfectly, i mean spot on, rears lined up too but the holes in chassis legs seem a couple of mm’s closer, respectively not wrongly..