Dually factory tire size question

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For model years 2000 and 2001, the factory has stepped up to the LT235/85R16 tire which has really added to the stability when carrying big slide-ins (the tires now stick out beyond the fenders).

My surfing buddy has a 99 3500 with the smaller LT215/85R16's. Can somebody please explain what the factory has done to allow for the larger tire size on the newer trucks(have they lengthen the rear axle, put a shim between the wheels, etc. ). He is interested in adding the larger tires but as he totes a Bigfoot 3000, he does not want the larger tires to rub the inside sidewalls on the duallies. Is this possible??? Thanks in advance. #ad


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David Dressler
2001 Driftwood 3500 Quad Cab 4x4, 155 inch WB, 5. 9L HO Cummins Diesel (ETH), 6-Speed HD Manual (DEE), SLT+, 3. 54 Anti-Spin Axle, Camper Special Group, Trailer Tow Group, Leather, Sliding Rear Window, Jacob's E-Brake, Rhino Liner, VDO Vision (pyro, boost, engine oil temp. ), Weather Guard Diamond Plate Saddle Box, Tork Lift camper tie-downs, Mag-Hytec Differential Cover, AND functional Halo light!
Bigfoot 3000 10. 11 Slide-in Camper.

 

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David
The reason they can put 235's on the new trucks is they changed the offset of the
wheels. I have 235's on my 99 & they work just fine. Just be careful what brand of tire
you use because even though they are the same size the cross section width vary as
much as 1. 5 in.
hope this helps
Rick

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99 3500 4x4 QC,5spd,3. 55 posi,turn over ball goose neck hitch,Putnam class V reciever hitch,Alcoa alum. wheels,275 hp inj. home built boost module,4 in. straight exhaust(built it in my shop)Pac brake,4 leaf overload springs,all options execpt leather & keyless entry,2000 Artic Fox 10 ft. camper,with slide out 2horse tongue pull trlr. ,30 ft. gooseneck 3 horse living quarter trlr. ,24 ft flat bed that I haul my Ford 4x4 race truck on.

 

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David, Rick is right, they just changed the offset to allow for the wider tires. The rim width stayed the same. I'm running Michelin 235-85's A/T,s and they work real good. Regards Pete

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99'3500,quad cab,4X4,a/t
3:54,all the right packages!PROPER VALVEMENT

 

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I ran 235's on my 94 and on my 98 without any problems.

 

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Thanks guys for the quick replies. I didn't realize that we were running different rims here.

[This message has been edited by dresslered (edited 10-17-2000). ]