erikharbour
+1y
Kevin - Yes its best to just measure first and use the measurements from the site to find the best fit.. we use Standard Group Sizes however but the group 75 is kinda of an odd ball.. its like a group 55 or 22 but not as skinny and is wide like the group 24.. I would measure how much room you have and go with the biggest option.. i would guess the HC1800 or HC1400..
As far as lifespan most last upwards of 5yrs with no issues some of our world record setting world champions still use the same cells from 6 yrs or longer in the most abusive of applications and still win and set records.... The ones in my dodge are 4 years old and still sit at 12.8V i have driven the truck 4 times in 4 years so its sits most all of its life.. On occasion somethings can happen but technically for a battery to fail something has to cause it.. and if it doesn't fail in the first month then it should never have an issue until many many years later in a perfectly good and charged environment..