Traction Device - Detroit Tru-Trac Diff - Ranger-Forums - The Ultimate Ford Ranger Resource


Drivetrain Tech General discussion of drivetrain for the Ford Ranger.

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Old 01-31-2010
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Traction Device - Detroit Tru-Trac Diff

OK so here is the scoop.

From an old project, I happen to have a brand new 9" "Detroit Tru-Trac No-Spin Diff” (taken from the box) for a 9”er.
I can get a 9” Housing but it will need some brackets welded on and I know an 8.8 is close and would more than do for my application but what are the thoughts of two things:

1) Opinions on the Detroit Tru-Trac Limited Slip Differential ?

2) A 9” in the rear of a Ranger vs the 8.8, even an OEM small bearing 8.8 like I have in the EDGE now ?

The Tru-Trac would cost around the 450 - 500 $$$ range so I wouldn’t have to paid for it, the housing is cheap, cut down $200 ouch, the axles are the only thing that will cost the extra $$$, 31 spline axles needed, ??$$$.

I have been looking for an FX4 Rear Axle (cheap) but nothing worth the money and then I found the Tru-Trac, which I had forgotten about, in the upstairs of the barn, just thinking on it.

Please let me know what you think ?

Last edited by Scrambler82; 02-01-2010 at 06:46 AM.
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Old 02-01-2010
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No one has an opinion ?

How about 9” vs 8.8 ?
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Old 02-01-2010
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The 9" is much stronger and doesn't have c-clips iirc.

I say leave it full width and go sas!
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Old 02-01-2010
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Nice thought man but I don’t want to go that deep with this one, my DD.
SL Lift, Skyjacker leaf, 285x75x16s, nice, simple and should last a while.

thanks for the info.
i am looking for a fab house in the MA area to do the cut down and axle ordering, maybe moser axles.
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Old 02-01-2010
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If you're going to go through all that trouble I would sell the 9" stuff and just get an 8.8.
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Old 02-01-2010
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Quote:
Originally Posted by seed60 View Post
If you're going to go through all that trouble I would sell the 9" stuff and just get an 8.8.
I thought of that maybe I can sell the Tru-Trac, it is brand new, installed but never run on, how much do you think it is worth to the general populous.

I think I saw a price on the web for $500, $400 would be nice but I need to talk to one person first about his 8.8 out of a Lvl II.
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