Moving rear axle back - Ford Bronco Forum
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post #1 of 5 (permalink) Old 03-11-2017, 04:19 PM Thread Starter
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Moving rear axle back

When I put the Dana 60's in my 78 I had to shorten the driveshafts a little bit. Maybe an inch or so, I can't remember.

When I built my 203/205 case the output of the 205 moved back about 7-1/4" if I remember correctly. I checked the two shafts and it turns out they were 7-1/2" different in length. Amazing, as if I had planned it that way. Anyways, I was able to take the front and put it in the back, and take the back shaft and put it in the front. I have been driving this way for a few years now with the small diameter front shaft powering the rear diff. Haven't had a problem at all, although I did make a little more clearance in the trans mount cross-member for the larger rear driveshaft.

Anyways I am now thinking about linking the rear (can't stand leaf-springs anymore) and while I'm at it moving the axle back so that my driveshafts would be the same length, so somewhere around 7". I have to replace my quarters anyways so I thought I could do the bodywork at the same time.

Any thoughts? Any pics of lengthened Broncos out there?

Thanks!

Steve Johansen
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post #2 of 5 (permalink) Old 03-11-2017, 09:51 PM
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One thought: Lengthening the wheelbase will give up clearance on breakover.

Tradeoffs everywhere.

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post #3 of 5 (permalink) Old 03-13-2017, 02:47 PM
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What about the gas tank?
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post #4 of 5 (permalink) Old 03-14-2017, 07:40 PM Thread Starter
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Not concerned about loss of breakover clearance. Departure angle will be greatly increased so one loss is another gain.

Gas tank can/will be relocated above the axle, through the floor. Prob going propane so mods have to be done anyways...

Steve Johansen
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post #5 of 5 (permalink) Old 03-15-2017, 10:39 PM
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depending on how much stretch you want, swapping the frame for a f150 shortbox frame may be easier than hacking up the bronco frame
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