E.Roy
Aspiring Explorer
Yes they're both the same at 2 3/8" or 60mm. Nissan Titan's are also the same. According to SD Truck Springs specs Titan springs are only 1/16th of an inch shorter from front hanger to center pin. Exact same from center to rear. And they also have an extra ~1/2" of arch. I'm not sure if you'll really notice any difference from using the stock Titan springs, but if you were combining packs, using some from a Titan sounds like an option.
Titan Spring: http://www.sdtrucksprings.com/index.php?main_page=product_info&products_id=7610
Tundra Spring: http://www.sdtrucksprings.com/index.php?main_page=product_info&products_id=7670
Thank you for confirming