if your were to go with a group 31(won't fit well) just get a good quality (name brand) one.
group 31's are typically used in "heavy" trucks. i've talked several people to switch to group 65's over the 31's. they have the same amps but have a hell of alot better warranty. a typical 65 has at least a 72 month warranty, were as a 31 is only a 24 month. that right there is a easy choice for me to make.
<span style="color: #FF0000">#18</span> not all trucks are created equal
THE COWBOY'S CADILLAC,<span style="color: #FF0000">my pics.</span>, 96 F-350 XLT SC DRW PSD, 4x4 conversion(D60),more oil than you, auto tranny by faubion motorsports, tuned by a backwoods hack(thanks tony), 230cc injectors, D66 turbo, head studs, 910 valvesprings, open element intake, homebuilt fuel system, 3-4"DP, intercooler with homemade spider and piping, 5" chrome stacks with turnouts, front hitch(for my weight bar), member of the <span style="color: #FF0000">WNYPA</span>
Regardless of weather you go through the grief to install 31's(which I woundn't unless I had some really unusual demands) or go back with 65's try Centennial Batteries. These are not too common but worth looking for in the western US. These use the Delco Freedom technology- calcium / calcium instead of lead / antimony. They outgas very little and produce NO corrosion of terminals and truck parts. I have been using first the Freedom and then the Centennial batteries in my fleet since 1990 and no corrosion problems, good warranty and good performance. Check them out. Oh BTW another battery tip....the highes CCA's are not always the longest life. I use the mid level CCA's and get a longer life.
Mine: 91 F250 Reg Cab 4x4 5spd 7.3IDI 4.10LS 145,000 miles. Banks Sidewinder 92 D60 F axle w 97 brakes and Powerlock. Lift: about 4" over stock 250. 33x12.50x16.5 Pro Comp MTs Magnaflow 12" muffler. Sees dirt everyday. Used to haul hay, wood, feed cows, check fence.
Hers: 96F250 CCSB 7.3 PSD 4x4 5spd 3.55 LS 190,000 miles. Puchased 7/03, Looked for a 5spd CCSB for a year!Dana 60 front axle, at stock F350 height (for now) Energy Poly bushings, Bilsteins, 305/70/16 Pro Comps on 16x10 Weld Outbacks, AFE Pro7,TYMAR 3x3.5x4 downpipe,TYMAR 5" straightpipe, gutted EBV, IH Non EBV pedistal,New Alliant AC Injectors,(stage 1)Cal reg kit, SBC Con O clutch, permenent clutch bushing fix, AC mod with a different twist, AMP Powersteps with custom brackets and wiring(one of 2 OBS trucks with them according to AMP) Line of Fire. Sees dirt everyday.
My Company pickup: 86 F250 6.9 C6 320,000 miles Co trucks 5 89 to 94 IDI's, plus about 50 more diesels.
Diesel Mechanic 34 yrs Maintenece Manager 23 yrs
I used to use trojan group 31's in my lowriders, those were one of the best, took a TON of abuse, and kept on ticking. they dont make em anymore which sucks, cause when my current supply runs out I have to find a new batt [img]/ubbthreads/images/graemlins/mad.gif[/img](I still have twenty, I havent used)