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| KJ SFA Speedometer? http://www.lostjeeps.com/forum/phpBB3/viewtopic.php?f=73&t=84043 |
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| Author: | Johndeere87 [ Wed Feb 17, 2016 3:37 am ] |
| Post subject: | KJ SFA Speedometer? |
Considering an SFA swap on my KJ, I have been hearing there will be problems with the speedometer? Has anyone found a way around it? |
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| Author: | PALiftedKK [ Wed Feb 17, 2016 5:20 am ] |
| Post subject: | Re: KJ SFA Speedometer? |
That should be the absolute least of your concern.......... |
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| Author: | Johndeere87 [ Thu Feb 18, 2016 12:33 am ] |
| Post subject: | Re: KJ SFA Speedometer? |
You might say that, but I've done 4 Rockwell straight axle swaps, and a 1 ton swap. It's kinda what I do. Just not sure of the electronic ins and outs of the KJs |
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| Author: | tjkj2002 [ Thu Feb 18, 2016 11:06 am ] |
| Post subject: | Re: KJ SFA Speedometer? |
Johndeere87 wrote: You might say that, but I've done 4 Rockwell straight axle swaps, and a 1 ton swap. It's kinda what I do. Just not sure of the electronic ins and outs of the KJs For '06 you must retain the ABS on all 4 corners(4 channel ABS) since the speedo piggy backs of the ABS speed sensors. If you had a '05 or older KJ the speedo issue is very easy to overcome,I have a post in this section how to do it but will not work for '06/'07 KJ's. |
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| Author: | Johndeere87 [ Thu Feb 18, 2016 1:40 pm ] |
| Post subject: | Re: KJ SFA Speedometer? |
Well that is going to be a problem. I suppose I could just use a GPS unit, But I like to see what kind of wheel speed I am making when I am slipping. I have a "Cyberdyne" brand speedometer on my dune buggy, that can adapt to almost any rotating source, and can be easily calibrated to pick up vehicle speed off of it. I was hoping to use the factory speedometer however. Thanks for the reply |
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| Author: | Johndeere87 [ Thu Feb 18, 2016 1:50 pm ] |
| Post subject: | Re: KJ SFA Speedometer? |
I was reading the some of the posts about having issues with the Jeep stalling due to having no speedometer. That sounds a bit scary. I once had that problem while climbing a large hill with my rockwell swapped F150, engine stalled and I barely had enough brakes to keep me from backing over sever people on ATVs that would not give me space 
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| Author: | tjkj2002 [ Thu Feb 18, 2016 2:44 pm ] |
| Post subject: | Re: KJ SFA Speedometer? |
Johndeere87 wrote: I was reading the some of the posts about having issues with the Jeep stalling due to having no speedometer. That sounds a bit scary. I once had that problem while climbing a large hill with my rockwell swapped F150, engine stalled and I barely had enough brakes to keep me from backing over sever people on ATVs that would not give me space Yes sudden braking can cause the engine to stall without a working OE speedo since the trans has no idea what's going on. |
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| Author: | Johndeere87 [ Thu Feb 18, 2016 3:56 pm ] |
| Post subject: | Re: KJ SFA Speedometer? |
Is there anything I can do with a tone ring on my pinion and some creative wiring and programming? |
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