|
New 19.5s for 6.7 Dually
Additional "unsprung weight," and other esoterica, have me worried about the new 19.5 mags I've ordered for my dually, and the commercial-style tires they'll be wearing.
The retail tire center I've ordered them through has been helpful, for years, in directing us when we've had purchase questions, but there are conflicting "pros and cons," here, so I'd appreciate TDR member input.
I've measured my new dually's rims, and they're approximately 18.5, now, so the additional size of the new 19.5 rims shouldn't dramatically affect "the look," insofar as the wheel-well-filling appearance of the new rims and tires.
The tire store tech told me that the height of the new tires/rims will be pretty much the same as the old setup, but I'm not sure this makes sense. If the rims are an inch bigger, to start with, why wouldn't the new mounted tires be also marginally larger?
The salesman said that the new, 14-ply tires (Toyos) are "substantially heavier" (he 'guesstimated' they weigh 85-90 pounds), but that my new mag wheels were also substantially lighter (and stronger) than the factory steel wheels.
He said the net weight difference would be, maybe, 30 pounds more per corner.
Can anybody speak to whether or not this (additional weight) is something to be concerned about in terms of lagging acceleration, a hit to fuel mileage, or towing, ride-comfort, or other issues?
What decided me, initially, is that these tires are "guaranteed" for 150,000 miles (by the store) and the purchase price includes free-rotation, free balancing, free "road hazard" (for life of tires), etc., etc.
This store is very reputable, so I take them at their word, and the cost of rotating and rebalancing 6 wheels/tires (seasonally) is not insignificant here in mountain-country Colorado, where we swap sets of tires (snow/road) twice a year. The store handles mounting and changing snow/road tires free of charge, too, which is a very nice service (so long as you purchase the wheels tires from them).
Ride comfort is a concern, but durability is more of an issue, since this truck sees a lot of construction sites, and we live and work along gravel roads most of the time.
Thanks for your advice and comments
__________________
'07 3500 6.7 4x4, Quad Cab, 6SP auto, 3.73 gears, inferno red, WARN 16,000/ARB Winch Bull Bar, Linex Bed and Rocker Panels, Extreme driving lights and fogs. Leer 180cc truck cap. Extendo-bed. Geno's seat covers, rubber mats. Nuvi 660 navigation. Putco nerf bars. Duraflap mud flaps.
|
Linear Mode
