well i did it i broke all of my gears and my diff housing. to replace everything it is going to cost me over $100.00 is there any upgrades out that will take a beating?

click on gallery to pictures

that sucks dude. i am sure someone will come up with stronger gears yet. i personally think there is a need for somekind of cover for the diff as the rocks get it there and chew up the diff cases.

An alloy diff housing is a must, unfortunately it's not exactly cheap.
A reinforced diff tube would be a good idea, but the housing is more important.

maybe thats why i haven't trashed mine yet, i bought the four way self locking aluminum diff. good call on that one chevy. i will keep my fingers crossed that mine doesn't blow up.

where did you get your self locking aluminum diff? and how much?

prices vary from 100-300 depending on the diff, and if it were a upgrade kit or a complete diff, should be able to get through any FG dealer.

I have made a cover for my Diff out of thin lexan, keeps it protected fairly well!!

ammdrew that's what I'm looking for, what is the warranty on this diff JK . maybe Santa will have one under my tree also what is the part # for the air filter?
Jared i made a cover for my Diff also
thanks guys

Hi RAWPWR
The part # you are looking for is
#8484 diff conversion=$76.18 or
#8483/05 complete diff=$151.45
FG makes a few diffs but the off-road cars can only use the Diffs that have the Flat alum. diff cover.
The off-roads have a lowered rear diff. Does not allow room for adjustable diffs.

Have a Nice Day!
Angel C.

which air cleaner are you after?

ive hear those self-locking diffs affect the handlin is this true cause a REALLY need one as run my marder up in the hills nice ans steep

I have also a problem first i was thinking it was my dif to, but when i drive my car and I do a little jump and when the car hit the ground there is a strange noise like gears over gears I check the dif and the gears but nothing to see anybody have a id?

it it a slight clicking noise and is there more more play on the wheels cus ive had that exactly the same after a small jump seams t work fine though[&:]

yeah but now it's not moving forward anymore cant find what it is

ammdrew looking # for the stock air cleaner for back up. i had a k&n and did not like it.
monster I have also a problem a strange noise like that. i looked at every thing and at that time every thing was fine.

If you want to use the Self Locking difs, or the adjustable difs on a FG Off-Roader you have two options.

1: Get the rear dif Raiser blocks (#4478)
2: Cut a grove in the plate for the ring on the diff, just like there is one for the gear wheel.

I have the Allu diff.(#8483/5) on my FG Leopard. I plan on putting in the 2 way self locking upgrade(#8497), someday, when I get the time.

Or maybe if there is a good one on eBay, I will try to get a 4 way self locking diff.

Happy driving from Greenland
Jesper Rex

sometime what happens is the case breaks near the bearing support, this is due usually to a large rock coming under the case and forcing the case upwards as it passes, also it can happen on extreme hard side landing were you force the dogbones into the side of the case and it cracks the plastic.

what happens next is as you apply force to the dif the case moves allowign the spyder gears some play, as soon as one gets enough play the force is only on one tooth and the gear snaps, one breaks then it multiplys and soon you have four very exspensive broken gears.

best method to avoid.. if you hear a weird click, and you can not find a exterior gear with a chip, stop and take the diff apart( you may only need one gear at this point) .

best prevention, alloy case upgrade, adjustable is nice, and our preferance is to cut the chassis to keep dogbones as level as possible without lowering the ride ht.

The alloy conversion is pretty reasonable, check with a dealer for acurate pricing.

in our onroaders the plastic diff will last forever, as it is the rocks that cause the stress, in the offroaders depending on were you run we have seen easily a years worth of hard running out of a stock diff and case, some of that is just luck as to what the enviroment is you run in.

And remember you may not know when you strees the case the gears will not slip then they will usually fail in a high traction condition after the case is cracked or broken. Also the cover and its dents have no influence on the insides of the diff, the plastic carrier is what controls the gears and there position.

good point ammdrew but can that make so hard noise. the sounds what it make looks like if the to big gears 48/16 going over each other.

the case when broken can actually move enough to let those gears slip without any damage or sign of broken teeth.
if the internal gears are broken, you can usually feel that by rotating the diff and holding the brake and one tire to put some force and you will find the bad spot..

ok thx m8 i go look at it again this weekend let you know what it was

my marder will move fine there is the clicking noise and a lot of slack and the rear brake is working but its not getting throught to the wheels i asume this means theres something slipping
luck i ahve the front disks this weekend or i wouldnt have a front end anymore

thanks

p113