4.10 gear swap question
07-02-2007, 10:47 PM
#32
Registered User
Thread Starter
Join Date: Nov 2002
Location: Western Washington
Posts: 63
Likes: 0
Received 0 Likes
on
0 Posts
nospin4me,
are you positive your reading a true 70 mph, I used a certified radar, plus you have a different trans than the stock one,(dont know if that would affect it,maybe different speedo gear). Your rpms are just way different than mine...
.
anyway thanks yall for the advise and the swap went good.... now on to the next project.... softer suspension
......
are you positive your reading a true 70 mph, I used a certified radar, plus you have a different trans than the stock one,(dont know if that would affect it,maybe different speedo gear). Your rpms are just way different than mine...
.anyway thanks yall for the advise and the swap went good.... now on to the next project.... softer suspension
......
07-03-2007, 06:16 AM
#33
Registered User
nospin4me,
are you positive your reading a true 70 mph, I used a certified radar, plus you have a different trans than the stock one,(dont know if that would affect it,maybe different speedo gear). Your rpms are just way different than mine... .
anyway thanks yall for the advise and the swap went good.... now on to the next project.... softer suspension ......
are you positive your reading a true 70 mph, I used a certified radar, plus you have a different trans than the stock one,(dont know if that would affect it,maybe different speedo gear). Your rpms are just way different than mine...
.anyway thanks yall for the advise and the swap went good.... now on to the next project.... softer suspension
......The speed in my truck has been verified 3 different ways...GPS, radar, and having the wife drive beside me on the highway in our Jeep
. All 3 netted the same speed at the same RPM.
07-03-2007, 01:55 PM
#34
Registered User
Join Date: Apr 2003
Location: Cummins Technical Center, IN
Posts: 6,564
Likes: 0
Received 6 Likes
on
5 Posts
To others who may be reading this thread later:
This swap of going to 4.10s after after installing 35" tires is really only necessary with the auto trans.
If you have the 6-speed, then you can probably get away with the stock gearing.
Figure a 300rpm difference at hwy speeds between 3.54s and 4.10s or between 35" tires and 31s. Consider this a rule of thumb, as it's not exact and will vary with speed.
JH
This swap of going to 4.10s after after installing 35" tires is really only necessary with the auto trans.
If you have the 6-speed, then you can probably get away with the stock gearing.
Figure a 300rpm difference at hwy speeds between 3.54s and 4.10s or between 35" tires and 31s. Consider this a rule of thumb, as it's not exact and will vary with speed.
JH
07-03-2007, 11:29 PM
#35
Registered User
Join Date: Feb 2005
Location: Everett, WA.
Posts: 18
Likes: 0
Received 0 Likes
on
0 Posts
To others who may be reading this thread later:
This swap of going to 4.10s after after installing 35" tires is really only necessary with the auto trans.
If you have the 6-speed, then you can probably get away with the stock gearing.
Figure a 300rpm difference at hwy speeds between 3.54s and 4.10s or between 35" tires and 31s. Consider this a rule of thumb, as it's not exact and will vary with speed.
JH
This swap of going to 4.10s after after installing 35" tires is really only necessary with the auto trans.
If you have the 6-speed, then you can probably get away with the stock gearing.
Figure a 300rpm difference at hwy speeds between 3.54s and 4.10s or between 35" tires and 31s. Consider this a rule of thumb, as it's not exact and will vary with speed.
JH
Clay
Thread
Thread Starter
Forum
Replies
Last Post
BlackBomber
3rd Gen Engine and Drivetrain -> 2003-2007
1
07-22-2009 07:03 PM
bigwheels94
3rd Gen High Performance and Accessories (5.9L Only)
5
07-11-2008 03:10 PM
Treangen
3rd Gen High Performance and Accessories (5.9L Only)
63
07-07-2008 07:42 PM