Differential options for the 7.5 axle - Ranger-Forums - The Ultimate Ford Ranger Resource


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  #1  
Old 12-13-2007
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Differential options for the 7.5 axle

So im pretty tired of my open diff when off roading and would like to get some more traction.

Im wondering if anyone has any suggestions for what to put in my 7.5 axle. Id like a selectable locker (like air or electric) but I dont think they make them for the 7.5. So im looking at LSD or a Locker.

Currently the only two options I know of are:
Auburn Limited Slip
Detroit TrueTrac Locker

Also in your guy's opinion is it worth the money to upgrade this? Its going to come in around 800 bucks parts and labor..
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Old 12-13-2007
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eh.. what i did with mine was go to the junk yard.. found a 01 edge with L/S 3.73 gears i wanted. bought the whole axle for $150.. put new fluid in it, new shoe's and springs and wheel cylinders and got the drums cut.. spray bombed it up and installed it.. i was still probably under $200....
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Old 12-13-2007
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I'd try to find a cheap 8.8, that will open up a ton of options with lockers and such and give you a stronger axle.
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Old 12-13-2007
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I will be switching to a 31 spline rear end when I find one. I will sell you my 8.8 28 spline cheap with everything. I think the most it would is the LS rebuilt.
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  #5  
Old 12-13-2007
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Id love to install an 8.8 axle, but I dont have the tools or knowledge to do it. So it would have to be taken to a shop. Anyone know roughly what a shop would charge to swap the axles?
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Old 12-13-2007
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i want to say 7.5 to a spring over axle 8.8 all you would need is probably an impact and some wrenches to do the brakes and drive shaft

but someone may correct me
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Old 12-13-2007
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We could probably do it with basic hand tools.
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Old 12-13-2007
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i love my 8.8 limited slip!
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Old 12-13-2007
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Quote:
Originally Posted by 99ranger4x4
i want to say 7.5 to a spring over axle 8.8 all you would need is probably an impact and some wrenches to do the brakes and drive shaft

but someone may correct me
dont need driveshaft just mounting flange
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Old 12-14-2007
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Quote:
Originally Posted by Redneckstone
dont need driveshaft just mounting flange

well i was saying wrenches to take the drive shaft off the 7.5 and put it on the 8.8

Quote:
Originally Posted by edgeaholic (tm)
i love my 8.8 limited slip!
i hate mine

who wants it? haha
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Old 12-15-2007
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  #12  
Old 12-15-2007
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Quote:
Originally Posted by fddriver02
I will be switching to a 31 spline rear end when I find one. I will sell you my 8.8 28 spline cheap with everything. I think the most it would is the LS rebuilt.
Hmm maybe Ill consider that. Well have to talk more once you get the 31 spline rear end.

So after some thought I think you guys are right, It would be smarter to go to an 8.8. So I might hold off for a bit till i find one.

Any suggestions of where to get an 8.8? I heard junkyards but im a bit nervous about that cause you wont know the condition that they are in...
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  #13  
Old 12-15-2007
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Quote:
Originally Posted by Jester983
Id love to install an 8.8 axle, but I dont have the tools or knowledge to do it. So it would have to be taken to a shop. Anyone know roughly what a shop would charge to swap the axles?
Your kidding?

Theres one line ontop of the differential ( proportioning valve ), one plastic connector with wires on the diff, 4-ubolts on the springs and the end of the drive shaft.

A basic socket set, a flathead screwdriver, open end/line wrench and a case of beer.. You could do this in under 2 hours ( if in a rush ).

You might want to get in touch with a member from your area. A shop will probably charge you a MINIMUM of 4 hrs of labor and ' dream ' up parts you will have to buy.

It would be a WASTE to upgrade any 7.5 rear endless the upgrade part was an 8.8 rear .
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Old 12-15-2007
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Going to a junkyard and finding an 8.8 LS would cost you what...?

I have the open 8.8 and not liking it to much.

Would it be hard to just take the LS out of the junkyard axle and putting it in mine? That would be really nice.
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Old 12-15-2007
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Quote:
Originally Posted by Lord Of War
Going to a junkyard and finding an 8.8 LS would cost you what...?

I have the open 8.8 and not liking it to much.

Would it be hard to just take the LS out of the junkyard axle and putting it in mine? That would be really nice.
the whole axle drum to drum about $150-$200...
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Old 12-15-2007
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That seems very reasonable. Would it even be worth my time to just take the LS out of one axle and put it in mine?
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