8" or 10" rim for 35x12.5 tires?

I found a real deal on 35x12.50x15 Dunlop MRover.  Dunlop recommends installing on a 10" rim.  I would rather have an 8" inch rim and need to be able to air down.  The section width is 13.0". 

Most of the people that I have wheeled with have 33x12.50x15 on 8" rims.  Ordering rims this week.

Just a thought. You may have a rubbing problem with a narrower rim.  The tire will bulge out and may hit the inner wheel well when turning.  Also the tires will wear out in the center more than the whole treadwidth.  

I don't think you should have any problems.  I used to run 35x12.5 BFG's on 8" rims with no problems.  I did it because the 10" rims I was using were getting too beat up.  My 8" rims never got messed up.  

You may not get even tire wear though because as a rule the rim width should be fairly close to tread width when possible and a 8 inch rim is pretty narrow for that tire. If you were getting rubbing with them it is because of the rim offset on bolt up, not how the tire fit it. Generally a wider rim need to be offset more for clearance but some are not.  

You are much better off with the 1o incher.  I have run a similar setup and found problems when airing down.  Also problems with the tire wear.  

I used to run 33x12.5's and 35x12.5's on factory Blazer 8" rallies.  Never had any problems.  Helped keep the rims from getting dented up.

i've ran 35x12.5s on chev ralleys too and never had a problem. i even had 36x14.5 radial gumbos on them for a while. i'd like to have a set of 8 lug 16.5 ralleys custom made. those have to be the best looking stock wheels ever.  

They would never wear right and would not air down well with a "skinny" rim in a fat tire. They make wide rims for a reason besides looks.  

don't say never. i have 2 sets of 35s in my garage on 8 in wheels. 1 set bfg mud and the others are off brand. they are worn just fine thank you. one of each set has less tread than the other, but they where on the LF of a fulltime truck with enough power to break em loose. both sets are for sale if anyone needs some. cheap.  

Should have been able to because the narrow rim would not give equal pressure across tread for best traction.  

i belive that the spinning is due to the super soft rear suspension that squats real easy and a somewhat stiff front and a super duper powerful 8:1 compression 250k mile stock 350 under the hood. and the general use of low range. it had 3.08 gears in the diffs. put it in low and i could beat any rice burner in the area from stop light to stop light. it topped out at about 50mph. i even surprised an x5 bmw with my multi colored pile of chevy history.