Does anybody out there know the final drive ratios on the F350? I'm after 1st, 2nd and 3rd gear ratios and diff ratios. Also if there is a difference between the F350 diff centres and 1/14 tractor truck diff centres. I could work it out by counting teeth but i'd like to avoid that if possible.
Cheers,
Chris
High Lift gear ratios
Started by Drjack, May 20 2007 05:28 PM
2 replies to this topic
#2
TA-Mark
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Posted 20 May 2007 - 09:11 PM
Here's the Specs according to tower hobbies spec page: http://www2.towerhob...0001p?&I=LXMVP1
SPECS: VEHICLE-
Length: 19.4" (492mm)
Width: 8.5" (216mm)
Height: 8.7" (220mm)
Weight: 6.8 lbs (3.1kg)
Gear Ratio: Low Gear 1:64.39, 2nd Gear 1:35.20, Top Gear 1:21.14
Tires: 3.7" (94mm) diameter, 1.2" (32mm) wide
BODY-
Length: 17.7" (449mm)
Width: 6.5" (165mm)
Height: 5.1" (130mm)
54 tooth pinion gear, 16 tooth spur gear.
I think they have the pinion/spur backwards there... LOL.
The ratios of the gearbox are the same as listed at tamiya.com http://www.tamiya.co..._f350/index.htm
Hope this is of some help
Mark
SPECS: VEHICLE-
Length: 19.4" (492mm)
Width: 8.5" (216mm)
Height: 8.7" (220mm)
Weight: 6.8 lbs (3.1kg)
Gear Ratio: Low Gear 1:64.39, 2nd Gear 1:35.20, Top Gear 1:21.14
Tires: 3.7" (94mm) diameter, 1.2" (32mm) wide
BODY-
Length: 17.7" (449mm)
Width: 6.5" (165mm)
Height: 5.1" (130mm)
54 tooth pinion gear, 16 tooth spur gear.
I think they have the pinion/spur backwards there... LOL.
The ratios of the gearbox are the same as listed at tamiya.com http://www.tamiya.co..._f350/index.htm
Hope this is of some help
Mark
#3
Drjack
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Posted 20 May 2007 - 10:35 PM
I think you're right, mate! 54 tooth pinion?????? That's one tough RS540!!!!
That's great, exactly what I needed. Don't know why I didn't think to go to the site myself! Tired I guess...
We just worked it out the old fashioned way; tire revolutions to pinion revolutions. With the WW2 wheels, I roughly worked it out to be around 88:1 overall ratio in low gear. GASP!!!!!!!!!!!!!!! Lower than a pregnant snake! At 3am though, my calculations are probably completely wrong!
Thanks a lot Mark, you've been a great help! Cheers,
Chris.
That's great, exactly what I needed. Don't know why I didn't think to go to the site myself! Tired I guess...
We just worked it out the old fashioned way; tire revolutions to pinion revolutions. With the WW2 wheels, I roughly worked it out to be around 88:1 overall ratio in low gear. GASP!!!!!!!!!!!!!!! Lower than a pregnant snake! At 3am though, my calculations are probably completely wrong!
Thanks a lot Mark, you've been a great help! Cheers,
Chris.
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