marcolarco52

Looking for spacers 15mm for my 21 g63 trying to figure out which part number is for my specific truck from what I can tell is 20958410SW is the right one but just want to confirm.

Also can anyone point me to the right length and size studs?

Thanks

streborx

Best advice is to contact H&R and talk to a sales rep. If they send you the wrong spacers or bolts, you can exchange them.

marcolarco52

My mistake the spacer part I keep seeing online will work is 30958410sw with 45mm studs.

Don't know if the spacers are the same for pre 19 models and 19+ models?

The Butcher

45mm is the factory stud length. You would want them 60mm for bolt-through on a 15mm spacer.

Spacer Part Number: 30958410SW
Stud Part Number: 1456002SW

Both of those are for black. Silver is without the SW at the end.

Yes, the same spacers work for 463 and 463A.

marcolarco52

Just measured my studs for my after market wheels that came off my old G. They are 30mm I assume because those wheels have deeper stud holes?

Floobydust

BTW, the H&R 21mm spacers are thick enough that they can use their own separate mounting bolts so you can then use them with your stock length lug bolts.

sweetazzj186

Please trust me on this. I just got a 21 g63. The tires are well into the fender stock. 15mm wont do much. I went with the H&R 31mm and it looks perfect, like factory. Search this part number 62958410SW and get 2 of them. The spacers will come in black. Everything you need is included. Simple install.

streborx

This depends on what you're trying to achieve. If all you're concerned about is ensuring your over-sized tires clear the truck's suspension components, 15mm might do the job and will least stress the suspension. If you're after the Tonka Toy look and want your tires to extend outboard maximally, go with the 31mm's.

sweetazzj186

I wouldn't say my truck looks like a Tonka Toy. The tires barely stick out of the fenders. It's a clean look. Everyone that's seen the truck so far doesn't even notice it until I point out that it was done.

streborx

Doesn't that defeat the purpose?(lol)

sweetazzj186

I'd rather them not notice because it looks factory, than have them point out how the tires are buried in the wheel well.

Floobydust

The two thicker H&R spacers come with everything you need (the 5 extra sub-bolts to attach them). The thinner 15 mm ones require longer studs which are not supplied with the spacers. Be sure you remove the spacers before you take it in to the dealer for the bearing problems that might develop.

ustaadG

Could you upload some pics of how it looks with the spacers? Thanks

sweetazzj186

Sure thing. Also note I am lowered on HR springs.

ustaadG

Beautiful G! Do the wheels stick out past the fenders? Or would you say they’re flush with the fenders?
I’m thinking 20mm spacers as I have the 22in wheels/tires considering they’re 10mm wider than the 21inch wheels.

sweetazzj186

They stick out just a tiny, tiny bit. Just barely. You might be ok with the 20mm then.

streborx

Even with the modest OE 275/50R20 tires and the wider AMG package fender flares, the paint on the wrap-under rear bumper is exposed to debris spitting off the tires. I mounted mud guards on the rear -- they look dorky, but provide some protection when I encounter road work signs that announce "fresh chip seal", and can't turn around.