Hey guys,

purchased a vlsd diff with 3.692 gears and will be swapping out my open diff with 3.357. Will there be any problems with the speedo readings or do our cars read from the wheels? I have an 09 sedan with 7 spd auto.

thx

DOMO

 

I don't know. But I'll follow this to learn. You tell US.

Jim

 

you will not have issue with the speedo reading being off

 

Subscribed. Keep us updated

 

will let the community know of what happens when the install is done. Looking for time to do this. I am excited about the performance gains... I did this with my 72 chevelle... it turned a fast car into a beast... planted you in the seat every time you put your foot into it...

 

With the 3.692 FD you should be experiencing quite a bit more lovely twisting torque and get better city mpg. Please hurry and let us know!!!

 

I went from a 3.3 to 4.08 and my speedometer seems fine

 

thanks guys. still looking for the time to get this done... been busy with the job... and life... I'll post my findings when it's done!

 

You find time to get this done already? I'm wondering if you bought a whole 6mt driveshaft or ??? I've already secured a 2011 6MT VSLD diff and I'm holding out now on the driveshaft because I'm trying to figure whether I need the whole shaft or just the joint. BTW 499.00 for the diff on ebay.

 

Any updates?

 

Good price. What gearing are you going from and going to?

Coop

 

Having read your stuff I decided to straight swap the 3.69. I'm currently 3.36 stock 7AT gearing.

 

So.... this said, wouldn't the 3.69:1 diff have the OEM 3-flange w/pinion? Isn't the 3.69 out of an AUTO? Does the 7AT have the three bolt flange?

Why do you need to swap the driveshaft?

I'm confused.

Coop

 

7AT has the three bolt flange with 3.36 gears. The 6mt pumpkin has 3.69 andthe round 4 bolt. Your car was a 5AT that came with 3.69. That's what I took from you when you said somewhere that the 3.69 swap for the 7AT was almost equivalent to a manual going 4.08.

 

hey people, still on the forums but haven't done the swap yet. been told that I can change the flange on the pumpkin with the one that's on my car and everything should work. just been too busy to get anything done. I did have an issue with one of the bolt holes not being true and couldn't screw a bolt into the axle flange. Had to have a machine shop drill it out and install a heli coil... trying to work my schedule and get this done...