BiggPappaa
Junior Member
Hey guys I’m new here so go easy on me. Last year I got a 86 w250 360 4 speed with 56k original miles. Truck is in pristine shape.
Here’s my issue, I want to be able to drive it on the free way at 70 mph. I have the 435 4speed and I know it’s a great transmission but what are my options for getting up in speed.
70mph I’m spinning 3100rpm
60mph I’m spinning 2600rpm
Should I mess with my front and rear diff and try to get some higher gears? Or is there something I can do with the tranny?
I’d like to k ow what others have done to get some better fuel mileage and speed.
Thanks!
Here’s my issue, I want to be able to drive it on the free way at 70 mph. I have the 435 4speed and I know it’s a great transmission but what are my options for getting up in speed.
70mph I’m spinning 3100rpm
60mph I’m spinning 2600rpm
Should I mess with my front and rear diff and try to get some higher gears? Or is there something I can do with the tranny?
I’d like to k ow what others have done to get some better fuel mileage and speed.
Thanks!
