Can I put 275 70 17 tyres On my standard 17 inch wheels. On it now is 265 65 18

Are these standard rims and tyres or are they something that you bought to change the look of your vehicle?
On standard rims and tyres the steering and scrubbing problems could be a suspension or steering rack issue.
Non-Standard Rims and tyres mean it could simply be that you have fitted the wrong wheel setup for your vehicle. You cannot put a random set of wheels on your vehicle. There are several things you need to check first to stop causing loads of problems. Things like brake calliper and rotor clearance, Rim Offset, rim width and actual tyre size.

It will depend on what the standard tyre size and Rim is that is normally fitted to that model and what vehicle the replacement rim came from.
Wheel Rims can have different lug hole spacing according to the make and model. Another difference can be the 'Offset'. This is how far the rim sits into or sticks out of the wheel arch. This can cause tyre rubbing especially on the front when turning.
I think 16 inch rims are larger than the standard wheels fitted so you will need to adjust to a different Tyre size just so you don't affect your speedometer reading. Larger diameter wheels can cause a slower speed reading and smaller wheels read as a faster speed.

it depends on the hight of the truck for height , but when you want to put really wide tires on you can get spacers , I think the most depending on what truck you have is prob 12 in just guessing though

They will if the bolt pattern and the height of your old tires are the same as the new rims side by side so roll one next to your car if it's the same height yes your golden don't forget to check the bolt pattern

The wheels could have been changed on the car from the standard original factory set and hence the tyre size may not be the standard factory original size.
The size of the tyres on the vehicle now is moulded into the side wall of the tyres and is easy to read.
Check all 4 tyres because larger size tyres may have been fitted as a pair to the rear.

The size might read - for example 245 45 18 or 235 45 17 (there are a huge number of sizes for each model of tyre).

The first 3 numbers are the width of the tyres in mm eg 225 mmm or 235 mm and so on. The second 2 numbers are the tyre profile size or ratio (which can be 70 65 60 55 50 45 40 and so on. The third number is the wheel diameter size. If you have 18 inch wheels on the car the tyres will read 18 or if they are 17 inch wheels the tyres will read 17 and so on.

A 7.5 to 9.5 inch rim width is recommended for a P265/65r tire due to the tread width.
A P245/65r will work ok on the 7 inch rim. I hope this helps.

FACTORY SPARE TIRE IN TRUNK HAS LARGER RIM. THE RIM IS 2 INCH BIGGER IN DIAMETER TIRE HEIGHT AND RIM WILL GIVE CAR CORRECT WHEEL HEIGHT.IF YOU DONT HAVE FACTORY SPARE TIRE.YOU CAN BUY SAME SIZE RIM THAT YOU HAVE ON YOUR VAN AT SALVAGE YARD PUT USE TIRE ON RIM OR GO TO DEALERSHIP THEY CAN GET YOU A FACTORY SPARE TIRE.

U need to work on your question a little I think are you asking if 16 inch wheels and tires will fit your Nissan or are you asking if 16 inch tires will hold air on a rim with a 1/2 inch gap between the two? I f you are putting 16 inch wheelson are they uni lug?What were thewheels made for?
do they have the same back spacing do u have the right lug nutts for the wheels and car? Are your lug studs long enough.
There is alott of things that could be different when you change a wheel. Other than height clearance.

20021 Buick Century Sedan - Tire Size

If you have the standard factory 15 inch (diameter) x 6.0 inch (wide) wheels then the tires fitted were size: 205/70R15 (205 is the tyre width in mm and the 15 denotes the tyre bead diameter in inches for fitting to 15 inch wheels. The R denotes the speed rating of the tire).

The tires currently fitted to the car have the size moulded into the sidewall of the tire.

However I do not know if aftermarket wheels have been put on the car and if so a different size tire from the standard factory fitment may have been fitted to the wheels.

I hope this helps.

okay,lets go to basics...1/.175 is the width of the tyre.2/.70 is the profile(that is 70mm from the wheel rim to the road).3/.13 is the width of the wheel rim.
So,you have 185(wider tread)60 (lower profile)14"(bigger wheels).you need to fit 35 profile tyres to get close to the same rolling radius to correct the speedo,the ride will be harder and the tyres are much more expensive,alternatively fit 13" wheels/tyres.
70/13 radius is the same circumferance as 45/14(25mm thinner).
simply put,if you measure the original wheel, road to top of tyre,then measure the ones fitted you are an inch to tall or 3.1/2" more around (approximately)please leave feedback...ta
geoff.