it would take a 225/40-17 to achieve a 24.1" diameter vs the OE 25.9" dia.

 

Just did a quick search and didn't turn up anything so....

Is there any way to recalibrate the speedometer for use with a different final drive?

 

I dont think the speedo should be off, I believe the 8's VSS is in the tranny, not the diff.

Someone correct me if im wrong.

 

i thought the speed sensors were in the wheel hubs (for abs)....

 

I know there are boxes that you put in line with your speedometer that let you recalibrate it. I read threads about them here quite a while ago. Don't remember what they are called.

 

its the yellowbox from ricks2k.com. But from the looks of it, we dont need that, its calibrated correctly already. :D

 

no what is in ur wheels is the wheel speed sensors which are for abs as well as for traction control............the vss which is the vehicle speed sensor is calibrated through a sensor usually on imports n domestics is on the back of the transmission not on the rear end.............just thought id put my $ 0.02 in............but how much did it cost for rear end gear swap n lsd conversion........thats my next mod in mind.........i have rb intake rb exhaust B&B midpipe upgraded plug wires, flywheel clutch rims rb raceflash n a hooked up system......i want somethin with a little more of a gain in the accleration which i can give up 10-20 mph top speed to break in 13's...... so can u give me an idea how much it ran u for parts, i got a guy at my work whos our shop mechanic that can do the install.......i just gotta get a price n location where to go

 

I ordered the gear from JonDemand for around 700, maybe a little less. Paul at Mazmart is having the new diff built for 300 plus a 500 core swap deposit. Not sure if these prices are still good or not since I ordered mine back in January. Hopefully will have it installed by mid May.

 

so did you need anything else other than the gear set itself in order to get the gears installed?

 

You'll need a new bearing for the pinion (it's pressed on).
I think you can reuse most everything else if its all in good shape.

 

well im gonna basically need an OTD list of whats needed for this gear swap..............???? then comes the scrimpin n savin with bills n extra cash.......

 

I'm in the same boat. this is the next mod i want to do and i want to make sure i know exactly what i'm going to need to order so there won't be any surprises when i take the 'ol 8 to the shop

 

jeez that would eat up the fuel!

how much mileage are you getting?

 

we don't need no stinkin' mileage.

 

well before i crashed, about 200 almost on a full tank.........consider i have every bolt on short of pullies and this......including rb race flash.... wanna break into the 13's all motor......

 

MPG info on first post

 

Any chance of some vids?

Thanks for the MPG update

 

how many miles were u getting before the install? every 8 has diff gas mileage.

 

Short feedback on gears on first post. 2nd MPG updated.

I have specified my "before" MPG to be in the 16-19 range

 

correct . Changing the final drive will not alter speedo readings .
Only way you can stuff up your speedo is with different sized wheels.

 

my Kaaz LSD is kicking @ss ...

 

Hmm, you are getting similar MPG for before and after, thanks for the updates! Additionaly, your after MPG is better than my current MPG (~ 17) with stock. If this is case, that MPG isn't significantly affected, then I too may consider this.

Thanks again, and please do continue to update your MPG at your leisure.

Goodbye!
Edgardo

 

New MPG update. See at first post.

"3. 214 miles (50% highway, 50% city) / 13/6 gallons, 15.7MPG!! (Lowest I've seen for my car. But I did kind of pushed the car quite a bit on some roads...)"

 

can you elaborate a bit? i think our lsd is good for a stock car but its still not good enough the track.

 

Any 0-60 or quarter mile times?