1st Generation Specific (1979-1985) 1979-1985 Discussion including performance modifications and technical support sections

differential gears

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Old 04-09-03, 12:20 AM
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differential gears

rear end is howling quite nicely
and the 3rd member needs replaceing

I know you can get a 4.7 from a kia sportage, as much fun as those would be they are a little short.

what can I scavenge some 4.2-4.44 3rd members from?
Old 04-09-03, 12:38 AM
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heh... 4.7 would be juuuuuust fiiiiine.


you would just have to block off 1st gear and pretend you had a 4 speed!
Old 04-09-03, 12:48 AM
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if i had the money I would go with those gears on a LSD rear with a miata tranny, but $$$ is not abundant here
Old 04-09-03, 01:05 AM
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4.7 gears out of a kia sportage, would that be a direct bolt on?
Old 04-09-03, 01:06 AM
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If you're talking about the whole rear end assembly that is.
Old 04-09-03, 01:21 AM
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goto mazspeed
i think it is
there is a discusstion there
Old 04-09-03, 01:40 AM
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ROTOR THAT PUSSY BITCH

 
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I need to know how you remove the damn axles.... damn GSL-SE axles... I've removed the 3 nuts holding the dust cover... the 2 nuts holding the brake calipers... the brake line is off.... the emergency brake line is also off... It still feels like something is holding it... I've 10 time check what could be holding it... I've even remove the 2 screw that's on the disk itself.... I can't remove it.... help...
Old 04-09-03, 01:47 AM
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i dont know about the rx7 axles but the chevy one i have worked on had axle retainer clips inside the pumpkin they look sorta like the peice you bolt on to the bottom of the 'o' shape on a piston rod
Old 04-09-03, 01:57 AM
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The pumkin on the RX-7's don't open up like the chevy's... its either you remove the 3rd member or it's in there... the axles are not retained by any clips.... cuz I've done it before but on a GSL but it had a disk brake too... Now I'm just confused because I've leterally checked what could be snagging... but nothing... check if theirs more bolts and nuts to remove... nothing...
Old 04-09-03, 01:59 AM
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??? i have no idea then
Old 04-09-03, 03:54 AM
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When I had to take out my third member, I had to pop the shafts out with a bfh,(big ****** hammer).
Old 04-09-03, 03:57 AM
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Originally posted by Rotor13B
When I had to take out my third member, I had to pop the shafts out with a bfh,(big ****** hammer).

yup!!!! he has done it!!!! big fucken hammer!!!


sportage gears??? never heard of that!why not rebuild yours? or get a used posi unit?
Old 04-09-03, 04:31 AM
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ill look into a miata pumpkin, will it just bolt up to a '82 gs?

BTW how do you rebuild a diff. i thought the whining was from the gears wearing together
Old 04-09-03, 04:44 AM
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could be the gears or the bearings, ypu can rebuild it! just get a ring and pinion , crush sleeve, bearings, and pinion seal! parts are very pricy though!
Old 04-09-03, 12:41 PM
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to get the axels out after you've taken all the brakes off, just keep hitting the axel flange with a rubber mallet.

4.444 gears are in the *front* diff of a 87-88 mazda 4x4 pickup if you can find one. cheap alternative.

the kia 4.778 r&p are supposed to be a direct swap in

-bp-
Old 04-09-03, 12:59 PM
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Originally posted by DriveFast7
to get the axels out after you've taken all the brakes off, just keep hitting the axel flange with a rubber mallet.

4.444 gears are in the *front* diff of a 87-88 mazda 4x4 pickup if you can find one. cheap alternative.

the kia 4.778 r&p are supposed to be a direct swap in

-bp-
You ssure the ring and pionon from a Kia sportage wil fit and what year and 2wd? I used to work at a Kia dealership..

Maybe ill ask some old friends if they have any spare parts laying around..
Old 04-09-03, 01:24 PM
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chuck clark over at mazspeed did the research and said the ring and pinion fits our diff.

99 and 2000 sportage 4wd auto and manual. and it looks like the 98 works too

http://mazspeed.bcrx7.com/forum/thre...4f98296036b35f
Old 04-09-03, 02:10 PM
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He said it works by theory it fits in a Miata and Miata fits in the RX7,Is he swaping the ring and pinion gear or the whole LSD?

I hope it fits,cause bitch it will be on, 4.777 muwhaha
Old 04-09-03, 03:37 PM
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I am the guy who got them and i am they will be installed today. In order for me to retain the stock LSD i am simple removing the GSL carrier swap the ring gears and putting that into the kia third member. should all bolt up once im that far. And I shouldnt have to set up the gears again.

if you do the kia swap it is the front diff off of a kia sportage 4x4. It is a 4.778 43ring-9pinion

Ill let everyone here and at mazspee know how it goes after and how diffiult the swap is.
Old 04-10-03, 01:26 PM
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howd the install go hans?
Old 04-10-03, 02:39 PM
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Hey...so you put the who differentual? gears and locker?

Or just the gears in the Mazda differentual?

97+ 4X4?

I hoep this ****** works
Old 04-10-03, 02:39 PM
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Ohh and what year rear end housing is it?
Old 04-10-03, 05:23 PM
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Originally posted by DriveFast7
howd the install go hans?
no so bueno, need a bigger hammer, driver side axel is refusing to come out
Old 04-10-03, 05:28 PM
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Originally posted by SoRRoW
Hey...so you put the who differentual? gears and locker?
I'd go for the complete modification, shorten the rear end, and put the whole thing in, locker and all

That'd be fun
Old 04-10-03, 06:09 PM
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no all i am doing is this:

remove third member from Kia diff.
remove third member from my 83 GSL diff
remove carrier from Kia third member
remove carrier from GSL third member
remove GSL ring gear from GSL carrier
remove Kia ring gear from Kia carrier and swap onto the GSL carrier retaining the LSD
bolt GSL carrier(with kia 4.77) into the Kia third member
bolt Kia third member into the GSL diff.

Looks to be easiest way(shouldnt have to set up gears) and measurements show the third members should be the same and bolt in swappable.

If i can ever get that ******* axle out ill let yall know.
the damn car is starting to **** me off.


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