I read the article on the retrofit limited slip and was wondering if someone has tried one and how much one was. Is there a website?

I have one and a few other members do also. They work very nicely, you can feel a different from the day you install it. Exile racing sells them. If i recall they are around 450.00 + your diff.

Your Diff is machined to accept the retrofit and shimmed to create the amount of resistance the built differential has. If that makes sense.

Terry

My apologies for bringing up an old(er) thread.

I'm curious about this. Can you help me understand what they do to give the LSD effect?

Also, I looked on their website and didn't find anything under Mitsu or Dodge. Is it something that you have to contact them for?

Thanks,
Brian

friction type.

Do you remeber the sure grip posi units of the early 60's mopar days? Or eve seen the rear end of a 93+ CAMARO?

What the object is to do is try to keep the spydergears from spinning. So you add some type of clutch friction material between the spydergear and carrier then add a type of spring asy to force the gear to the friction material. this way the gear can turn if forced to but will resist movement under operation. This is how the suregrip was assembled. Do a search on "sure-grip" or "mopar posi" to get a diagram.


Now since our carrier doesnt have room to place clutch type plates between the spydergears and carrier, what is done in the retrofit is to take the spring assy between the spydergears and add friction material to that. Now the gears must turn when the friction material is pushing against them. the reason the spring assy doesnt spin is because the diff pin goes right through it and forces it to move with the carrier.

Terry

I have one and I wouldn't trade it for the world. I don't care how fast your car is. A retrofit is the total difference off the line. It did take a while for Exile to get the whole thing turned around, so unless you have a spare transmission prepare for some downtime. I would highly recommend that you get a retrofit. If your going to make any kind of power out of your motor you need to keep the tires stuck to the ground or it ends up being worthless.

i should have went with the retrofit as well looking back because I spent quite a lot on a quaife thats still sitting in a garage waiting to be installed.

On the other hand if someone needs a differential to send off to Exile so they dont have any down time pm me.

Thanks a lot for all the responses. This seems like a very viable alternative to a whole new diff. I was interested in the OBX, but baxom's experience is a little unnerving. I understand many guys with Neons are running fine with them, and many honda's as well. I dunno, I guess it's nice to keep the options open with positive opinions from members who have actually had this done to their diff.

Couple questions (I apologize as they're probably elementary)

1. Is there a projected "life" to the friction material? I would assume, as with all friction material--ie. clutches and brakes-- there is a life expectancy. With those who have had this retrofit done, have you ever been concerned that the friction material will wear, and thus necessitate another retrofit?

2. Again, I don't see any options for this on Exile's website. Is it a service that is still offered?

3. I'm assuming this helps preserve the diff pin, as the wheels rotate together as opposed to one at a time. Correct?

4. Once this is done to your diff, do you get your diff back or another's? If you get your diff back, do you have to go about setting preload on the diff when reinstalling if it's the same thing?

Thanks,
Brian

Originally posted by ForceFed420a
Thanks a lot for all the responses. This seems like a very viable alternative to a whole new diff. I was interested in the OBX, but baxom's experience is a little unnerving. I understand many guys with Neons are running fine with them, and many honda's as well. I dunno, I guess it's nice to keep the options open with positive opinions from members who have actually had this done to their diff. Couple questions (I apologize as they're probably elementary)

1. Is there a projected "life" to the friction material? I would assume, as with all friction material--ie. clutches and brakes-- there is a life expectancy. With those who have had this retrofit done, have you ever been concerned that the friction material will wear, and thus necessitate another retrofit? Not sure on the life expectancy but many members have had them for a couple years at least now.


2. Again, I don't see any options for this on Exile's website. Is it a service that is still offered?

Yes i just got mine about a month back, send steve an email inquiring

3. I'm assuming this helps preserve the diff pin, as the wheels rotate together as opposed to one at a time. Correct?

The diff pin doesnt get presearved, the diff pi doesnt actually wear. the reason some people have issues with the Diff pin in that the retaining pin that holds the diff pin in place comes out allowing the diff pin to slide out of the carrier.

4. Once this is done to your diff, do you get your diff back or another's? If you get your diff back, do you have to go about setting preload on the diff when reinstalling if it's the same thing?

When this is done you send exile a diff and they build it and send it back to you. You do not have to set the preload. The preload is actually set in the trans cases. Now the preload in the actual retrofit is set by exile but the bearing preload of the diff doesnt change.

Terry

Thank you very much Terry.



Brian

Not sure on the life expectancy thing either ... my car is not a daily driver, and I pull it off insurance during the winter where it sits garaged and covered. So, my car is lucky to see 3000 miles a year. So, I have never thought about the life of it. Mine has maybe 1500-2000 miles on it and I've had it 2 years now.

Interesting question about getting yours back. I was told that you would, so I put a small indescrete mark on my diff when I pulled it, and I indeed get my actual diff. back.

For more information, go to the Group Buy thread and do a search on Retrofit. You should be able to find the group buy thread from about 2 years ago when a whole bunch of us on the board bought them.