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Anon Deleted Posts : Location : Status : Offline |
2.5 di transit cf Ok. I'll write this again seeing it disappeared last night lolHello every one. I have a cf 340 motor home called SID. Previous owner had trouble with original engine so decided to give it a heart transplant. It now has a 2.5 do transit and box in itit runs very well but has one problem. I know SID isn't the fastest of the bunch I know as I have a standard utopia. But SID IS REALLY SLOW. Thinking the transit power plant and cf diff don't go very well together. I was wondering it a transit diff or axle out of a 190 would be a better option bringing SID back up to a nice criuse speed of 55 60 Any info would be greatly appreciated ---------------------- |
 Tue 07 Jan 2014 @ 22:44
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Anon Deleted Posts : Location : Status : Offline |
Hi. Does anyone have any info to help me. Is the cf diff same ratio as transit or am I better putting transit diff in ---------------------- |
Wed 08 Jan 2014 @ 22:33
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Gethin Card Holder Posts : 462 Location : east lancs Status : Offline 
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all depends on what rear axle that fitted to yours. |
Thu 09 Jan 2014 @ 08:06
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Anon Deleted Posts : Location : Status : Offline |
Available transit axle ratios for the 2.5di 4.88 rear wheel drive single rear wheel 4.55 rear wheel drive single rear wheel 4.90 rear wheel drive single rear wheel 4.08 rear wheel drive single rear wheel 5.88 rear wheel drive single rear wheel 5.88 rear wheel drive twin rear wheel 4.63 rear wheel drive single rear wheel 3.77 rear wheel drive single rear wheel 4.27 rear wheel drive single rear wheel 3.77 rear wheel drive twin rear wheel 3.77 rear wheel drive single rear wheel 4.56 rear wheel drive single rear wheel 5.13 rear wheel drive single rear wheel 4.27 rear wheel drive twin rear wheel 4.63 rear wheel drive twin rear wheel 5.13 rear wheel drive twin rear wheel Becareful when changing axle ratios because while longer gears will give you a better top speed, you will intern loose out on acceeration and pulling power. ---------------------- |
Thu 09 Jan 2014 @ 12:02
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Anon Deleted Posts : Location : Status : Offline |
So the diff that is in mine is wrong then. And do I have to change whole axle or just diff ---------------------- |
Fri 10 Jan 2014 @ 08:44
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Anon Deleted Posts : Location : Status : Offline |
Gethin wrote: all depends on what rear axle that fitted to yours.
It's a standard cf 340 axle ---------------------- |
Fri 10 Jan 2014 @ 08:45
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Anon Deleted Posts : Location : Status : Offline |
How do I fi d out diff ratio that is in my cf standard 340 axke ---------------------- |
Fri 10 Jan 2014 @ 08:47
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bluebedouin Global Moderator Posts : 2444 Location : Northampton,England. Status : Offline 
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Apparently,there were two types of axle fitted to cf's. 
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Fri 10 Jan 2014 @ 11:28
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Gethin Card Holder Posts : 462 Location : east lancs Status : Offline
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since you have a 340 cf then it will be a twin-wheeled rear axle. there are up to 6 different ratios on this type of axle and by the look of it you have an extra low ratio 1 fitted. I do believe that the ambulance has a high ratio axle fitted but it wont be that high.............. you could try retro fitting a twin wheeled transit axle in place of the Beddy 1 but getting hold of a high ratio axle is hard as they are very rare . down side of this is caring 2 spare wheels though 
other option is to see if the set up can be switched to a single wheeled set up. the 280cf has a good high ratio axle and can carry the extra weight. if your going down this root then you can also swap the front set up to a 5 stud as well......... |
Fri 10 Jan 2014 @ 20:09
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Colin Birch Admin Posts : 4273 Location : Pontypridd, South Wales Status : Offline 
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karmasupra wrote: How do I fi d out diff ratio that is in my cf standard 340 axke The VIN checked should(!) give you the original ratio fitted to your van. Take a look HERE ---------------------- |
Fri 10 Jan 2014 @ 21:09
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Anon Deleted Posts : Location : Status : Offline |
Ok. Thank you everyone for your comments. I've looked on the link that Colin very kindly sent me. My diff ratio is 9/47 ---------------------- |
Sat 11 Jan 2014 @ 22:36
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Anon Deleted Posts : Location : Status : Offline |
Hi karmasupra How did you get on with axle My van is very much the same,very slow With same axle ratio , I would love to swap the engine , |
Tue 14 Jan 2014 @ 18:29
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Anon Deleted Posts : Location : Status : Offline |
I know a guy who has a few breaking transits but need to go up to see what axles he has. As he states he has few twin wheeled ones going to see what ratios he has all I know he has a few 190 axles ---------------------- |
Fri 17 Jan 2014 @ 18:47
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