rear end

General discussion forum for J30 and M30 owners!
kbflip02
Posts: 837
Joined: Mon Nov 12, 2007 8:58 am
Car: 1994 Infiniti J30
2006 Infiniti G35x
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what gears are in the stock rear end of the J?


brandonjustice93J30
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Joined: Thu Mar 02, 2006 6:42 am
Car: 1993 Infiniti J30

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3.917- j30

zerothread/22769

kbflip02
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Joined: Mon Nov 12, 2007 8:58 am
Car: 1994 Infiniti J30
2006 Infiniti G35x
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is the transmission the same as a 300zx NA???

Q45tech
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Car: 1990 Q45 342,400 miles 22 years ownership with original engine
1995 G20t 5 speed 334,000 miles 16" 2002 wheels - 205/50/16 Sr20ve vvl

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Yes same RE4R01A in both, however 300zxTT has the Q45 RE4R03A.

kbflip02
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Car: 1994 Infiniti J30
2006 Infiniti G35x
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Q45tech wrote:Yes same RE4R01A in both, however 300zxTT has the Q45 RE4R03A.
so what should be done in order to service the rear end???i heard someting about changing the diff fluid...but is that all?

gr8scott72
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Joined: Thu Feb 16, 2006 1:37 pm
Car: 1994 Infiniti J30t

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kbflip02 wrote:so what should be done in order to service the rear end???i heard someting about changing the diff fluid...but is that all?
Drain and fill. That's it.

Plug at bottom to drain. Plug at top (Driver's side IIRC) to fill.

Hint: take the fill plug off first so you don't find out AFTER you drained it that you can't get the fill plug off. It's kind of hard to turn the car upside down to refill the diff.


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