In Reply to: Re: 6 volt positive ground? posted by Tony C on May 17, 2018 at 08:33:24:
GRP-4 data shows length at 12-3/4" -may be too long to fit in an N battery tray. My INTERSTATE (1-VHD) GP-1 6-V battery fits perfect on my 8N tray. I have the original battery cover and hold downs installed as well. GRp-4 dies have more CCW (1000) and CA (1250) but the GP-1 type is spec'd at 640 CCW and 800 CA -a sufficient power source. I've been using these for years and never had any major issues even in cold weather. Plus I now use a Battery Tender when not in use. Just a satisfied Interstate customer. I'm sure there are better ones and I may try a NAPA or DEKA or EXIDE next time, but won't need to replace my 8N battery for many years yet. The next battery I buy will be a replica unit that has the FORD script logo on it for my early 9N project.