If you can find one, they make a small jaw puller inteanded for battery terminals. Just an idea; I've never tried to remove the booger ones since I put them in.
Slotted screw driver and lots of patience! Broke the plastic end off the factory cable and that was an expensive oops.
Very easy, hair dryer or hot air gun, get them warm and with some careful prying, they'll come right off.
1989 FWD Turbo Caravan-2.5 TIII, GT35R, auto, a/c, cruise, pwr windows/locks, fully loaded with interior and ran with full exhaust. RETIRED FOR A FEW YEARS!12.57@104 :O)
1984 Chev Getaway van, 6.2 Diesel with a remote mounted turbo setup burning WMO-For sale.
2003 GSW 2.0L TDI, auto, fully loaded, modified, 360K-wife's.
2004 GSW TDI, 5 speed, fully loaded, modified.
Aurora ignition wires for sale. Link to info
Super60 roller cams or custom/billet cams. Link to info