Finally took the time to swap pumpkins. 4.083 FD gear came from a '07 HR Z. The process was actually much simpler than I had initially expected. Couple bolts off the axles (10), drive-shaft (4), and one vac line later, the new pumpkin was in. I unfortunately didn't get a chance to open her up much, but will in the morning on the way down to campus . By the way, the pumpkin's pretty freaking heavy! Caught me a little off guard .

So now, we all KNOW that the rear pumpkin off a 2007 HR Z will indeed bolt DIRECTLY up onto our 37's. The only problem we had were the sensors. Fortunately for us, we were able to retain the individual harnesses per each car (Z's merges, while ours splits off into 2 individual lines). The ABS sensors came right off each pumpkin.

4.083 Rack and Pinion OE (Nissan Pathfinder - forged thicker for towing). Shimmed, upgraded seals and bearing. Chatter free!!!

 

LOL, just PM'd you about this topic right before I saw this post. Crazy timing

 

I'm interested too. What's your rpm at 65 and 80?

 

Just PM'd you back lol

 

65 was ~ 3,000 versus the originally 2,600/2,700 RPM. Not a huge difference. The jump in RPM bothered me a little bit. I'm over it now. lol

The one WOT chance I got was from 3rd onto an on ramp. Didn't check to see what the RPM was @, at 80. Will check for you in the morning Doggy!

 

Thanks! I was planning on doing this but I don't wana be hearing too much engine when cruising at 80 to work everyday.

 

For sure man. Will get back to you in the morning...but it really isn't too bad. I didn't notice the engine note so much (even with the drone from my tp's). Turn your music up? lol

 

a little off topic, but how do you like your stillen pulleys? did you do the accessory pullies as well?

 

How's the acceleration?

 

Sux the X's cant do this

 

get some videos if you can

 

Doggy, I lied. Looks like 70 MPH's at ~3100 revolutions. 80 MPH was at a whopping ~3500 revolutions. eek!

Honestly...I can't tell at this point. Will have to track to see a difference in trap speed. I totally hyped the concept up in my head. Someone claimed the FD gear swap as being equivalent to a ~50 whp gain! How naive of me to let it get to my head. lol

That'd be awesome if you could! I guess...nothing's impossible. I wonder what you would have to do to actually do a FD rack and pinion swap on an AWD? There's only 1 differential right?

Will do! Once I let my car settle down some. Let my buddy take the driver's seat yesterday before we did the swap. My poor, brand new all-season tires (who ever knew the car could whip the tail out so easily? lol)

He's a darn good driver. Wish I could double clutch like him. Freaked out when he double clutched into first initially...but, meh... lol

 

Yea there is only one diff, But I'm sure the T case would start freaking out if the rears where slipping all the time. But would be fun..

 

^^ why wouldnt it work? the awd kicks in if it dectects slip. all that will happen is that it will engage more because its easier to kick out the rear tires. Other than that i think it will be fine

 

can you pm exactly what i need to do this swap? and maybe some tips while i do it? thanks.