red48b1c Posted June 4, 2011 Report Share Posted June 4, 2011 I have a line on a set of nice 16" B-1-B wheels but am unsure if they will fit my B-1-C bolt pattern or if the stud sizes are different. I don't have an easy way to check. I know it is probably a SUPER-EASY question for The Experts but I guess my research skills stink too - I can't definitively find the answer. Can someone please enlighten me? Thanks for your patience. I'm excited about the 16" wheels because I think I can get taller tires easier and keep the revs down. The 30 year old bias ply load range E tires on my truck now are WAY past their prime. Quote Link to comment Share on other sites More sharing options...
Merle Coggins Posted June 4, 2011 Report Share Posted June 4, 2011 The "B" models (1/2 ton) used 16" wheels with a 5 x 4.5" bolt spacing with lug bolts, whereas the "C" models (3/4 ton) used 15" wheels with a 5 x 5" bolt spacing with studs and nuts. The B-1-B wheels won't fit your B-1-C, sorry. Merle Quote Link to comment Share on other sites More sharing options...
red48b1c Posted June 5, 2011 Author Report Share Posted June 5, 2011 Thanks, Merle! Oh well, I'll just have to keep up the search for tall skinny 15 inchers. Quote Link to comment Share on other sites More sharing options...
Merle Coggins Posted June 5, 2011 Report Share Posted June 5, 2011 I'm running 235/75R15's on my B-2-C with a 3.73 diff from a Plymouth in my rear axle. I can drive up to 75 MPH down the highway with no problems. Merle Quote Link to comment Share on other sites More sharing options...
red48b1c Posted June 5, 2011 Author Report Share Posted June 5, 2011 I have a lot of other stuff to worry about before I think about cruising at speed, but the old bias plies are rock hard, and flat spot while the truck is sitting so that it takes 5 miles before they are round again. Then they like to go their own way every so often - following a crown or rut in the road. Makes for some interesting trips. I was thinking of going to tall radials and thought the 16" wheels would be the ticket to a taller tire. Its a local trip truck anyway, so I should just bite the bullet and get radials for the 15" wheels. Quote Link to comment Share on other sites More sharing options...
Dennis_MN Posted June 6, 2011 Report Share Posted June 6, 2011 I'm running 235/75R15's on my B-2-C with a 3.73 diff from a Plymouth in my rear axle. I can drive up to 75 MPH down the highway with no problems. Merle What speedo gear do you have in your transmission? I'm using my gps but I'd like to use my speedometer Quote Link to comment Share on other sites More sharing options...
Merle Coggins Posted June 6, 2011 Report Share Posted June 6, 2011 I never changed the speedo gear. I've found that my speedo is only off by a couple MPH. It reads slightly slower that what my GPS reads. I can only wonder how far off it was before. Note the speed displayed in the upper RH corner of the GPS screen. Merle Quote Link to comment Share on other sites More sharing options...
John-T-53 Posted June 11, 2011 Report Share Posted June 11, 2011 (edited) The "B" models (1/2 ton) used 16" wheels with a 5 x 4.5" bolt spacing with lug bolts, whereas the "C" models (3/4 ton) used 15" wheels with a 5 x 5" bolt spacing with studs and nuts.The B-1-B wheels won't fit your B-1-C, sorry. Merle I just measured mine, and I have 15" rims (w/235-75-15 tires) with 5 x 4.5" bolt spacing. I searched Bunn's book for some info on this, but did not find a lot mentioned about the wheel sizes other than the rim diameter and width. What's up with that? If I'm correct, wheel bolt spacing for 5-lug is measured from the outside edge of one hole to the center of the second next hole. Edited June 11, 2011 by John-T-53 Quote Link to comment Share on other sites More sharing options...
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