Just a comment. This chart might not affect our Daks. The pinion gears for
the Dak speedos are as follows (at least according to the parts guy and his
puter). Two gears are offered for the nvg3500 in each of the three factory
ratios - one for each of the two standard factory tire heights - 6 different
gears total. I think the two tire heights are 28" and 26". My parts guy
said the gear for a 3.92 with the shorter tires was a 38 tooth. I had to
call and ask because AFTER I installed the gear (fluid pours out - a mess),
I noticed that the manual said that the gear housing was to be positioned
differently before tightening according to the number of teeth on the gear -
parts guy said it was a 38 tooth gear. For all I know there might be a
hundred speedo drive gears that will work to get the speedo exact. Just
passing along my experience.
Tate
-----Original Message-----
From: Bob Tom [SMTP:tigers@bserv.com]
Sent: Friday, January 15, 1999 4:04 AM
To: dakota-truck@buffnet.net
Subject: DML: Mopar Speedometer Pinion List
From time to time, there have been questions about which
pinion should be used whenever a tire/rim size change has
been made. I came across this on the web.
Mopar Speedometer Pinion Numbers
Tire Overall Diameter
AXLE RATIO 24" 26" 28" 30"
2.76 2538938 2538928 2538926 2538924
2.94 2538932 2538930 2538928 2538926
3.21 2538935 2538933 2838931 2838929
3.55 2538939 2538936 2538933 2538931
3.91 2538943 2538940 2538937 2538935
4.10 2538945 2538942 2538939 2538936
4.30 2538944 2538941 2538938
4.56 2538945 2538943 2538940
Please note:
These numbers are for the standard style pinion gear.
The last two numbers are the number of teeth, 2538945 = 45 teeth.
Bob
Burlington, Ont.
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