Limetrucker Posted September 4, 2022 Share Posted September 4, 2022 Looking at a 2007 CV713 Granite dump truck to buy has a E7 non emissions 8LL Eaton Trans with 4.42 rears ratio does anyone have any idea what type hwy speeds and rpm range I'd be looking at with 4.42's ? Thanks in advance Quote Link to comment https://www.bigmacktrucks.com/topic/70393-hwy-speed/ Share on other sites More sharing options...
R.E.D Posted September 4, 2022 Share Posted September 4, 2022 https://wellertruck.com/road-speed-calculator This is a road speed calculator.Input your info to find out speed.Your eaton trans if it is over drive has a overdrive of 0.73. I believe Quote Link to comment https://www.bigmacktrucks.com/topic/70393-hwy-speed/#findComment-508478 Share on other sites More sharing options...
Limetrucker Posted September 4, 2022 Author Share Posted September 4, 2022 33 minutes ago, R.E.D said: https://wellertruck.com/road-speed-calculator This is a road speed calculator.Input your info to find out speed.Your eaton trans if it is over drive has a overdrive of 0.73. I believe Thanks for the reply I'm not sure on the overdrive its 3 hrs away and I haven't seen it in person yet just trying to get a rough idea Quote Link to comment https://www.bigmacktrucks.com/topic/70393-hwy-speed/#findComment-508482 Share on other sites More sharing options...
tjc transport Posted September 4, 2022 Share Posted September 4, 2022 sounds a lot like the 05 i used to have. my would do at least 75. never had it over that though. it was good on the road, but with those gears sucked off road. was also tough on the clutch trying to take off on an uphill grade loaded from a stop. Quote when you are up to your armpits in alligators, it is hard to remember you only came in to drain the swamp.. Link to comment https://www.bigmacktrucks.com/topic/70393-hwy-speed/#findComment-508484 Share on other sites More sharing options...
Limetrucker Posted September 4, 2022 Author Share Posted September 4, 2022 1 hour ago, tjc transport said: sounds a lot like the 05 i used to have. my would do at least 75. never had it over that though. it was good on the road, but with those gears sucked off road. was also tough on the clutch trying to take off on an uphill grade loaded from a stop. 4.42 should be very low geared my concern was if it would even reach 75 without being maxed on rpms Quote Link to comment https://www.bigmacktrucks.com/topic/70393-hwy-speed/#findComment-508494 Share on other sites More sharing options...
R.E.D Posted September 4, 2022 Share Posted September 4, 2022 What tires are on the truck? Quote Link to comment https://www.bigmacktrucks.com/topic/70393-hwy-speed/#findComment-508497 Share on other sites More sharing options...
Limetrucker Posted September 4, 2022 Author Share Posted September 4, 2022 1 hour ago, R.E.D said: What tires are on the truck? 22.5 Quote Link to comment https://www.bigmacktrucks.com/topic/70393-hwy-speed/#findComment-508506 Share on other sites More sharing options...
R.E.D Posted September 5, 2022 Share Posted September 5, 2022 At 1800 rpm you will be at 69mph Quote Link to comment https://www.bigmacktrucks.com/topic/70393-hwy-speed/#findComment-508548 Share on other sites More sharing options...
R.E.D Posted September 5, 2022 Share Posted September 5, 2022 (edited) I have the same same gear ratio as you and same tire size.its great off road..but I have a mack trans with a bit more overdrive. Edited September 5, 2022 by R.E.D Quote Link to comment https://www.bigmacktrucks.com/topic/70393-hwy-speed/#findComment-508549 Share on other sites More sharing options...
Limetrucker Posted September 5, 2022 Author Share Posted September 5, 2022 2 hours ago, R.E.D said: I have the same same gear ratio as you and same tire size.its great off road..but I have a mack trans with a bit more overdrive. Thank you sir I appreciate the info Quote Link to comment https://www.bigmacktrucks.com/topic/70393-hwy-speed/#findComment-508567 Share on other sites More sharing options...
R.E.D Posted September 5, 2022 Share Posted September 5, 2022 (edited) Mine is governed at 70mph.. grossing 72k in a quint axle dump , I don't feel like I need to or want to go any faster.. Red Edited September 5, 2022 by R.E.D Quote Link to comment https://www.bigmacktrucks.com/topic/70393-hwy-speed/#findComment-508569 Share on other sites More sharing options...
Limetrucker Posted September 5, 2022 Author Share Posted September 5, 2022 15 hours ago, R.E.D said: Mine is governed at 70mph.. grossing 72k in a quint axle dump , I don't feel like I need to or want to go any faster.. Red 👍 thank you sir Quote Link to comment https://www.bigmacktrucks.com/topic/70393-hwy-speed/#findComment-508630 Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.