Motive Gear
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Motive Gear
Just got my Motive R&P for my truck. I ordered this from a store in Canada, because I bought the truck there and shipped it from there to Iceland.
I didnt specify any particular brand (should have done so) bot did specify this was for a 2004 F250 4x4. Sterling 10.50 and Dana 60 front.
Well, now that I got the R&P it turns out that for the rear axle its 10.25. (Motive F10.25-489L) gear ratio 4.89 but gear ratio for Dana 60 front is 4.88. (Motive D60-488XF)
So question to you gurus. Is it ok to use those together, i.e. 4.88/4.89.
How much weeker is 10.25 compared to 10.50.
I didnt specify any particular brand (should have done so) bot did specify this was for a 2004 F250 4x4. Sterling 10.50 and Dana 60 front.
Well, now that I got the R&P it turns out that for the rear axle its 10.25. (Motive F10.25-489L) gear ratio 4.89 but gear ratio for Dana 60 front is 4.88. (Motive D60-488XF)
So question to you gurus. Is it ok to use those together, i.e. 4.88/4.89.
How much weeker is 10.25 compared to 10.50.
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Freshman User
Joined: Feb 2004
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Gear ratio roundoff
Yes I belive youre right, but always better to be sure. A car mechanic is going to install this for me, so the installation should be ok. He also has a truck him self and is use to install those.
Thanks
Thanks
Elder User
Joined: Oct 2002
Posts: 873
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From: Roswell USA
Re: Motive Gear
Originally posted by icyford
Just got my Motive R&P for my truck. I ordered this from a store in Canada, because I bought the truck there and shipped it from there to Iceland.
I didnt specify any particular brand (should have done so) bot did specify this was for a 2004 F250 4x4. Sterling 10.50 and Dana 60 front.
Well, now that I got the R&P it turns out that for the rear axle its 10.25. (Motive F10.25-489L) gear ratio 4.89 but gear ratio for Dana 60 front is 4.88. (Motive D60-488XF)
So question to you gurus. Is it ok to use those together, i.e. 4.88/4.89.
How much weeker is 10.25 compared to 10.50.
Just got my Motive R&P for my truck. I ordered this from a store in Canada, because I bought the truck there and shipped it from there to Iceland.
I didnt specify any particular brand (should have done so) bot did specify this was for a 2004 F250 4x4. Sterling 10.50 and Dana 60 front.
Well, now that I got the R&P it turns out that for the rear axle its 10.25. (Motive F10.25-489L) gear ratio 4.89 but gear ratio for Dana 60 front is 4.88. (Motive D60-488XF)
So question to you gurus. Is it ok to use those together, i.e. 4.88/4.89.
How much weeker is 10.25 compared to 10.50.
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Joined: Feb 2004
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If I search by axle then this one from Motive Gears is listed:
RING & PINION 4.89 RATIO - 10.25 inch gearset with adapter bearings included to fit 10.5 inch
I did not see any bearings though, but Im also installing ARB locks and it came with bearings. Mabe they just put it in that box before shipping.
RING & PINION 4.89 RATIO - 10.25 inch gearset with adapter bearings included to fit 10.5 inch
I did not see any bearings though, but Im also installing ARB locks and it came with bearings. Mabe they just put it in that box before shipping.
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Lead Driver
Joined: May 2003
Posts: 9,303
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From: Lyndonville, Vermont
Originally posted by icyford
No its 44/9
No its 44/9
What bearings? pinion? I'm missing something..
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[QUOTE]Originally posted by 99f350sd
Oh yea missed that one...as long as the gears have the same teeth its the same ratio.
Well, actually the front ring has fewer teeths (its of corse smaller) but so does the pinion. The front is 39/8=4.875 as the rear is 44/9=4.889.
So there is a 1% difference between rear and front. Its that difference Im worried about. Should this be ok.
Oh yea missed that one...as long as the gears have the same teeth its the same ratio.
Well, actually the front ring has fewer teeths (its of corse smaller) but so does the pinion. The front is 39/8=4.875 as the rear is 44/9=4.889.
So there is a 1% difference between rear and front. Its that difference Im worried about. Should this be ok.
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