mtofell
Senior Member
- Joined
- Mar 18, 2014
- Posts
- 2,730
- Reaction score
- 2,428
- Ram Year
- 2014
- Engine
- Hemi 6.4
The 8spd in your 6.4 is so far superior to the 6spd I have it's laughable. My one complaint (and it's a big one) is the gear spacing in my 66RFE tranny. Mainly, the 1-2 gap is a mile and I get into situations when I'm around 35-40MPH where it can't hold second so, left to do it's own thing, the tranny just slams back and forth between 1 and 2.I had my concerns about pulling long grades. But after a trip to TN through the NC mountains where I pulled some steep grades for several miles I no longer have those concerns. Sat at 4000-4500 RPM for miles and the temps rose maybe 1-2 degrees. Trans sat at 170F, oil and coolant at around 210. I was impressed. That engine never broke a sweat, kept me at 55 MPH.
This is usually up a fairly steep/winding grade and my 5th is around 11K loaded so I realize I'm kind of maxing out the truck. I'll usually just lock it into first and get up to about 30. It's just too bad because the 6.4 is a beast. I can only dream of how great it feels with the right gearing.