should i assume i have gears?

ocbaud

Member

May 7, 2005

239

1

18

Midwest City, Oklahoma

Oct 21, 2005

#1

• Oct 21, 2005

• #1

alright, ever since i got my '01 gt it seems to be reading higher than i'm actually going. there is no way that traffic is normally doing 85-90mph

My old '02 V6 seemed to be correct. The diff. cover on the v6 had a metal tag on one of the bolts with numbers on it.

my '01 gt doesnt have that tag on the cover. There is also hardened silicone around the bolt heads like someone took the cover off and sealed it back up with a lot of silicone.

i also jacked the rearend up and rotated the drive shaft. It took 3 3/4 turns of the drive shaft to turn the tire around 1 time, so from what i've read that means it has 3.73 gears???

here is how my speedo is reading

70mph = 3000 rpms in 4th gear
70mph = 2000 rpms in 5th gear
80mph = 2400 rpms in 5th gear

when i'm doing those speeds it seems as though i'm going much slower than that, as traffic is always passing me

 

40th GT

New Member

Apr 7, 2004

916

0

0

Lawrenceville, GA

Oct 21, 2005

#2

• Oct 21, 2005

• #2

ocbaud said:

i also jacked the rearend up and rotated the drive shaft. It took 3 3/4 turns of the drive shaft to turn the tire around 1 time, so from what i've read that means it has 3.73 gears???

Click to expand...

Yes.

Now it's time to pick up a speedcal or a tuner. I'd do it ASAP b/c this also makes the odometer read high.

 

jasonh_86

I

May 20, 2005

1,156

2

48

Arkansas

Oct 21, 2005

#3

• Oct 21, 2005

• #3

Yup.. 3.73's

Get that speedo calibrated tho

 

ocbaud

Member

May 7, 2005

239

1

18

Midwest City, Oklahoma

Oct 21, 2005

#4

• Oct 21, 2005

• #4

hmmm.....

here is something odd though.

i'm going down the highway and my odo reads correct if i'm going by the mile markers. as in, the mile markers show 1 mile between them, the odo registers that i've traveled 1 mile

 

ponysarepretty

New Member

Jul 25, 2005

578

0

0

Oct 21, 2005

#5

• Oct 21, 2005

• #5

Strange... maybe your speedo is off, like someone put new gauges on and put the needle back wrong?

 

ocbaud

Member

May 7, 2005

239

1

18

Midwest City, Oklahoma

Oct 21, 2005

#6

• Oct 21, 2005

• #6

ponysarepretty said:

Strange... maybe your speedo is off, like someone put new gauges on and put the needle back wrong?

Click to expand...

it does have el white face gauges on there. but i checked with the digital readout from the odo that the needle matches. i'm gonna recheck the driveshaft and how many times it spins after work tonight but i'm almost positive the rearend has been opened up. I washed it a little today and saw that the silicone is blue and there was a lot of it around the heads of the bolts, unlike the black silicone and none around the heads on the bolts on my old '02 v6

 

ponysarepretty

New Member

Jul 25, 2005

578

0

0

Oct 21, 2005

#7

• Oct 21, 2005

• #7

It being opened doesn't imply a changing of gears. Get someone to drive along with you in another car, and coordinate speeds.

 

ocbaud

Member

May 7, 2005

239

1

18

Midwest City, Oklahoma

Oct 21, 2005

#8

• Oct 21, 2005

• #8

ok, i double checked it out. the driveshaft does rotate exactly 3 3/4 turns for each turn of the wheel.
and the odometer is about .3 miles off from what i could tell by the mile markers

 

mpe331lx

New Member

Jul 3, 2005

20

0

0

FL

Oct 23, 2005

#9

• Oct 23, 2005

• #9

You have 3.73, no doubt about it!