Diff gear recommendations

4spdragtop said

Yoohoooo rabbithole.... @roccodart440 care to chime in about OD trans info? If I'm spending $$ on a TC, which could mean a trans upgrade due to mine being orig 67 904, then I'm willing to listen to OD "stuff".
Fyi, I don't want to do any tunnel mods/cutting.
@TrailBeast
@65 Dartman
@str12-340
Thanks
Steve

Click to expand...

Gear Venders Overdrive

It replaces the tailshaft of your transmission. My car didn't require any tunnel mods. They are rated for 2,000hp. You can set them to automatic, or control it manually. The manual option is great because you can also use 2nd gear plus overdrive through town, which for me is better than 3rd gear. I also use 2nd + OD when I race 1/8th mile. https://www.gearvendors.com

If you'd like to see what a vast difference an OD makes for you, check out this calculator and click the GVOD option. Speed/Tire/RPM calculator