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Drivetrain Tech General discussion of drivetrain for the Ford Ranger.

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Old 05-22-2009
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8.8 Questions/Need Help

I got a couple questions about the 8.8 rear end. Instead of having it in my old thread I thought it would be easier to see in a new one

1. What weight oil and fricition modifier do I put it? Whats the ratio?

2. Will an explorer 8.8 cover fit the ranger one? How about the bolts for the cover?

3. Does anyone have any pics of the brake/spring configuration of the 8.8 with drums? Mine doesnt have the pads or spring on it but I have a box full of the spring and other stuff.

4. Anything special I should do since the rear end was rebuilt? I believe that the springs or whatever they are in the L/S are new.

5. What paint should I use when repainting the drums and the diff cover? Normal spray paint or some kind of heat resistant one?

Thanks yall
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Old 05-22-2009
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1. What weight oil and fricition modifier do I put it? Whats the ratio?

You can use something like Royal Purple. Its full synthetic, and it already has the friction modifier in it.

2. Will an explorer 8.8 cover fit the ranger one? How about the bolts for the cover?
Any 8.8 cover will work

3. Does anyone have any pics of the brake/spring configuration of the 8.8 with drums? Mine doesnt have the pads or spring on it but I have a box full of the spring and other stuff.

Try here
https://www.ranger-forums.com/forum2...um-brakes.html

4. Anything special I should do since the rear end was rebuilt? I believe that the springs or whatever they are in the L/S are new.

Don't know this one lol

5. What paint should I use when repainting the drums and the diff cover? Normal spray paint or some kind of heat resistant one?

Paint, I would wire brush it down to bare metal, then repaint it with a durable paint. Just keep in mind that it is going to be under your truck, rocks and other **** are going to be consistently hitting it. The better prep and paint you do now, the less of a headache it is going to be later
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Old 05-22-2009
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Awesome, thanks bro
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Old 05-22-2009
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Think I need any kind of primer for the diff cover? Or will it be fine with just some like black rustoleum?
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Old 05-22-2009
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Eh might as well, whats the harm? If you have it kicking around then I would. If not, then I wouldn't worry about it
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Old 05-22-2009
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Anyone else have any input?
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Old 05-24-2009
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Ok well I still need some more help.

Whats better, the normal gasket you buy at the auto parts store or should I put like that rtv gasket maker stuff?

Are these worth anything to anyone? They were on the bottom side of the axle since the guy had the axle changed to the top of the leaf spring.

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I also got the brackets for the u-bolts that have an offset hole for the bolt that goes thew the leaf spring.

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Old 05-24-2009
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Also got some up to date pics of my rebuild. Everythings painted and gonna finish putting it together tomorrow. Wheel cylinders they gave me were the wrong size so I got to get some new ones tomorrow.

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Old 05-24-2009
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Come on guys. I really need help here. I want to install this thing tomorrow.

What oil weight or just normal gear oil?
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Old 05-24-2009
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Quote:
Originally Posted by robert99ranger View Post
Come on guys. I really need help here. I want to install this thing tomorrow.

What oil weight or just normal gear oil?

I want to say stock oil weight was 80W-90 gear oil, plus 4 ounces of limited slip additive. But some gear oil already has the additive in it anyways. I don't remember how much oil it takes total, but there is that number somewhere...
Did they guy tell you how many miles he had driven it since the rebuild? I know there is a break in procedure for things like the gears and limited slip carrier.

And those 'u' shaped things that go under the spring perch are part of a flip kit. Us lowered guys l-o-v-e them, haha. You can send them my way for all the help i'm giving you


Oh, and since your brakes are almost all off, do what i just did, and put 12inch cobra vented discs on:
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Last edited by Dangerranger01; 05-24-2009 at 11:55 PM.
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Old 05-24-2009
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i bought a 7.5 out of a junk yard with 4.10's in them.
the owner had the flip kit on it...i bought the whole axle springs driveshaft (only simple hand tools no penetrating oil) and sold the flip kit and springs to a member on here

i used lucas heavy duty 80/90 cause it stays hot down here and doesnt get or stay cold so i dont have to worry about it gummin up on me
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Old 05-25-2009
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Awesome, thanks guys.

Whats your personal preference: gasket or that liquid gasket maker?

I dont know really a whole lot about the rear end since the guy that did it all died. I was told that it was rebuilt they think but thats all they know. But, the thing that gets me is that the axle seals were in terrible shape and you would have thought that if you go through the trouble of rebuilding it you would replace them.

Last edited by robert99ranger; 05-25-2009 at 08:55 AM.
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Old 05-25-2009
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I see alot of guys use the sealant in a tube instead of a gasket only for the cover. RTV is used. I'd replace those axle seals while you have the rear end out, might as well do it when its easy to replace it slash don't need to worry about leaks.
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Old 05-25-2009
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Ya, I went ahead and replaced them. They looked like poo
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Old 05-25-2009
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Hahaha good you did it meow. You have a 7.5 under your truck right now right? Because the drive shaft isn't going to bolt up to the pinon. By brother told me to you can get the part that bolts to the pinon with the u joint on it from another truck with an 8.8, and use a conversion u joint that goes from the 1310 on the drive shaft, to the 1330 on the pinon.
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Old 05-25-2009
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My drive shaft bolted up just fine. I got-r-done today and test drove it not to long ago. It road good.

Pics from today:

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Out with the old -

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In with the New -

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Old 05-25-2009
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Dam, looking good. I love steppies.
I can't wait to swap my 8.8 in....summer is too far away.
Interesting about the drive shaft, i'll have to yell at my brother about that one...

You test out the limited slip yet?
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Old 05-25-2009
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Thanks. It feels like it has a little power back now especailly like going up hills and cruising on the highway at 70.
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Old 05-25-2009
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haha yes! This is the benefit to lower gears. What rpm are you running now going 70mph?
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Old 05-25-2009
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I did not really pay attention to what it was. Next time that I am leaving the house to go any real distance is Wednesday when I go to my moms so I will look then. I might also get to test out the limited slip to and its capabilities.
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Old 05-26-2009
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I got another question. I think my shocks keep the rear end from dropping down all the way. I had to jack the rear end up a little to attach the shocks. What do I do about that?
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Old 05-26-2009
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Get longer shocks. I'd bet you're fine unless to flex it a lot and stuff. A lot of guys run Bilstein shocks...at least the 4inch lifts do. You could probably get something to work.
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Old 05-26-2009
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You'll love the LS, its night and day comparing my open ranger and the 150 with the ls.
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Old 05-26-2009
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Yeah, the drive shaft bolted right up to my Expo rear as well. I think Shanes been working with front drive shafts too long. I gave away my flip kit when I did the Expo mod, but yeah, you can find someone looking for it. I used Amsoil 75-90 extreme duty gear lube, it's full synthetic and has the L/S additive in it. And yeah, I know, Im a bit late, but I didn't see this thread until now.
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Old 05-26-2009
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I think I should be ok with the my stock shocks then. I dont do alot of extreme flexing. If one breaks, I have two more in the garage that came with the rear end that are brand new.

Ya, I still have not been able to really test the l/s out yet. Probably get a chance tomorrow and going to a state park for the weekend.

Thanks for the help guys.
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