4.0 clutch in 2.9

[xtremeRanger]

How well does it really work? Does it even improve anything or notice a difference? So whats the greatest year to get the clutch and flywheel from? and i can take any starter from any 4.0L?

 

[BlackBII]

I noticed a sgnificant improvement.

You need one from a 96? or older truck, as they went to a 8 bolt flywheel in the newer years.

You need a starter from a manual 4.0. The Auto 4.0 Starters go too far into the bellhousing and will cause the starter to get rotated by the flywheel when the engine is running.

You can however use a 4.0 Auto Starter with the 2.9's flywheel, if one were so inclined.

 

[xtremeRanger]

what improvements did you notice?

 

[AllanD]

The 2.9flywheel weighs around 18# the 4.0 is more like 23#

The 2.9 clutch is 8-7/8"

The 4.0 Clutch is 10"

How to quantify the difference?

It's like the difference between jerking off and sex with
a skilled and enthusiastic woman


AD

 

[mjonesjr]

It is worth the swap. I love every minute of mine.

BTW, the '97s didn't switch to the 8 bolt flywheel until the end of the production run. My '97 Ranger 4.0 had the 6 bolt flywheel

 

[LittleHorse]

one thing people often forget to mention about this swap is that they changed the slave cylinder hydraulic connection in 93. you'll either have to get a pre 93 slave or a post 93 line

 

[cocoasranger]

Any woman will tell you that 10" is better than 8 7/8".

 

[AllanD]

one thing people often forget to mention about this swap is that they changed the slave cylinder hydraulic connection in 93. you'll either have to get a pre 93 slave or a post 93 line

This is only an issue if you also wish to swap to a later slave cylinder.

The SAME slave cylinder was used on 1990-92 Rangers for both
the 2.9 and the 4.0.

Personally I prefer the plastic slave, because plastic never corrodes
And I believe the release bearing on the plastic one is stronger.

To do so I run the clutch line from a 1993 Explorer.

Of course I am NOW running my 4.0 clutch on a 4.0, so...

AD

 

[LittleHorse]

This is only an issue if you also wish to swap to a later slave cylinder.

The SAME slave cylinder was used on 1990-92 Rangers for both
the 2.9 and the 4.0.

Personally I prefer the plastic slave, because plastic never corrodes
And I believe the release bearing on the plastic one is stronger.

To do so I run the clutch line from a 1993 Explorer.

Of course I am NOW running my 4.0 clutch on a 4.0, so...

AD

that's correct, but in my case I got a clutch kit that included a slave, not knowing that the slave wouldn't work with my line. It saved me almost $50 over buying the clutch kit w/o slave and then buying the slave separately.

I don't like the idea of reusing the current slave in there...though it appears to be working, I don't want to have to pull the transmission when it craps out in 6 months.

I'm in the process of getting a 93+ line from a TRS member.