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GQ manual box

Tech Talk for Nissan owners.

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Posts: 902
Joined: Wed Jul 21, 2004 5:29 pm
Location: Sydney

GQ manual box

Post by stool »

GQ manual box
GQ with big nuts
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Posts: 902
Joined: Wed Jul 21, 2004 5:29 pm
Location: Sydney

Post by stool »

im new at this i just wanted know if 4.2 box will fit 2.8
GQ with big nuts
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Posts: 2820
Joined: Sun May 25, 2003 10:04 am
Location: Redbank Plains, QLD

Post by Daisy »

stool wrote:im new at this i just wanted know if 4.2 box will fit 2.8


Definitely not.

Takin a pic now of the two and the differences.

The 4.2 is HUGE in comparision to the 2.8

2.8 box is made of alloy. and its simliar to a 300zx gearbox with a transfer case.

the 4.2 is a fat turkey compared to it.

Pics in 5 mins.

TOM
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Post by stool »

Thanks Tom my 2.8 has done 205000kms and cluch and box are orignal with a bit of rattle from cluch and hard to get in 1` 2 when cold
GQ with big nuts
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Post by bogged »

stool wrote:Thanks Tom my 2.8 has done 205000kms and cluch and box are orignal with a bit of rattle from cluch and hard to get in 1` 2 when cold


that could have somethign to do with running 35's and a 2.8... What diff ratios u runnin?
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Joined: Sun May 25, 2003 10:04 am
Location: Redbank Plains, QLD

Post by Daisy »

Image

Image


As you can see above.. the bellhousings are different sizes.

The smaller of the 2 being the 2.8 gerabox.

Speak to Mr Clutch (www.whitepages.com.au) about your cluch system It may be about to fail, and get a solid flywheel and clutch setup 30 percent stronger i believe. approx 900 to 1000 dollars.

In regards to your gearbox problem. i am not too sure as mine went to 260,000 kays without dramas until i removed it due to burnt clutch and replaced with a 4.2 engine and gearbox. Try sythetic oil perhaps with some gear additive. 300zx gearboxes i believe are identical and some research in there if you can to see if its a direct replacement with your parts (transfercase, bellhousing etc bolted on)???

Hope this helps mate..

TOM
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Joined: Wed Jul 21, 2004 5:29 pm
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Post by stool »

standard ones i think thay are 4.6 `s 35,s have been on car for a week mtr`s
GQ with big nuts
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Posts: 2820
Joined: Sun May 25, 2003 10:04 am
Location: Redbank Plains, QLD

Post by Daisy »

bogged wrote:
stool wrote:Thanks Tom my 2.8 has done 205000kms and cluch and box are orignal with a bit of rattle from cluch and hard to get in 1` 2 when cold


that could have somethign to do with running 35's and a 2.8... What diff ratios u runnin?


Probalby the factory 4.6's. If you're runnin 35's the recommended gears would be 5.1s :roll: To date the most avilable aftermarket gearings would be the 4.8s...

Thus the reason for my changeover of the 2.8 into the 4.2.. gearing issues. as i want to go bigger :roll:
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Post by J Top »

Hard to shift cold is known as Cold Baulk.
Quite often a change of oil will rectify this problem.
Some vehicles used to use auto fluid in their manuals to fix this.
A good quaility 5speed g/box oil ie Castrol Syntrans should do it.
J Top
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