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-   -   Gear ratio change 1996-1997 (http://www.infamousnissan.com/forum/showthread.php?t=44417)

btn 07-02-2020 12:48 AM

Factory Gear ratio change: 1996-1997
 
Anyone know why Nissan switched from 4.37 diff ratios to 4.63 on the 4x4 2.4L but only for the 1996 and 1997 model years?

Deerhurst 07-02-2020 01:24 AM

4.6 was always used in 4x4 trucks with auto tranny's.



I couldn't find anything that I could read that confirmed or not the 4.6 only.

btn 07-02-2020 10:16 AM

Quote:

Originally Posted by Deerhurst (Post 537236)
4.6 was always used in 4x4 trucks with auto tranny's.



I couldn't find anything that I could read that confirmed or not the 4.6 only.

Sorry, should have specified: this is the manuals only.

VOTS95 07-02-2020 02:33 PM

It might have had something to do with speed/acceleration or even emissions since the trucks only came with a 4 cylinder for 96 & 97.

VOTS

Foul_Mouth 07-02-2020 05:39 PM

Quote:

Originally Posted by Deerhurst (Post 537236)
4.6 was always used in 4x4 trucks with auto tranny's.



I couldn't find anything that I could read that confirmed or not the 4.6 only.

I have a 4x4 pathy auto that has 4.375 gears.

Deerhurst 07-02-2020 10:32 PM

Quote:

Originally Posted by Foul_Mouth (Post 537277)
I have a 4x4 pathy auto that has 4.375 gears.




All the docs I have show the 4.6 in the 4wd D21 as the only option with an auto tranny. Could have been something oddball. Happens all the time.

btn 07-02-2020 11:17 PM

Quote:

Originally Posted by VOTS95 (Post 537270)
It might have had something to do with speed/acceleration or even emissions since the trucks only came with a 4 cylinder for 96 & 97.

VOTS

I suspected that as well. Since Nissan had no V6 option those years, they lowered the gearing to make up for that with the I4.

dvdswan 07-03-2020 03:06 AM

Manuals had 4.6 as well.

Deerhurst 07-03-2020 02:02 PM

Quote:

Originally Posted by dvdswan (Post 537292)
Manuals had 4.6 as well.

Yes. Everything I've seen points towards 4.6 being the optional gears for the manual with the 4.3 as standard.

Foul_Mouth 07-04-2020 06:21 PM

Quote:

Originally Posted by Deerhurst (Post 537283)
All the docs I have show the 4.6 in the 4wd D21 as the only option with an auto tranny. Could have been something oddball. Happens all the time.


Maybe because 96 97 trucks were only avaialble 4cyl. I have had 3 4wd pathy trucks with 4.375. 2 were stick and one was auto.


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