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speedo gear ? #2697909
09/15/19 09:43 PM
09/15/19 09:43 PM
Joined: Jan 2003
Posts: 1,642
s. e. pa.
C
calrobb2000 Offline OP
top fuel
calrobb2000  Offline OP
top fuel
C

Joined: Jan 2003
Posts: 1,642
s. e. pa.
hi

what tooth count gear do i need for 3.55 gears with 235 x 60 x 15" tire.

thank you !

Re: speedo gear ? [Re: calrobb2000] #2697913
09/15/19 10:06 PM
09/15/19 10:06 PM
Joined: Jan 2003
Posts: 30,756
Grand Prairie,Texas
stumpy Offline
I Win
stumpy  Offline
I Win

Joined: Jan 2003
Posts: 30,756
Grand Prairie,Texas
from the tech archives. http://www.moparts.org/Tech/tech/pages/speedo.html. you can find the tire diameter at tirerack.com

Re: speedo gear ? [Re: calrobb2000] #2697949
09/16/19 05:39 AM
09/16/19 05:39 AM
Joined: May 2019
Posts: 978
nowhere
S
Sniper Offline
super stock
Sniper  Offline
super stock
S

Joined: May 2019
Posts: 978
nowhere
There are at least three different style speedometer gears that do not interchange.

What are you driving? Because that chart in the archives only covers one of them

Re: speedo gear ? [Re: calrobb2000] #2698065
09/16/19 11:57 AM
09/16/19 11:57 AM
Joined: Jan 2003
Posts: 20,539
Rio Linda, CA
John_Kunkel Offline
Too Many Posts
John_Kunkel  Offline
Too Many Posts

Joined: Jan 2003
Posts: 20,539
Rio Linda, CA
That tire size usually takes a speedo pinion of the same number as the axle ratio. IOW, 3.55 could use either a 35 or 36-tooth pinion.


I'm supposed to respect my elders, but its getting harder and harder for me to find one now.

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