Speedo driven gear change

Beau 69 · Addicted!

Speedo driven gear change

Beau 69 · Addicted!

Thanks for that, I saw that on TCI site, will have to do some math.

L

dualquadpete · Canadian Poncho Superstar!

There's also a place in Florida that advertises an adapter for speedo cable, they say just tell them how far it's out, that's all the info they need!!! I'll see if I can find the add!!!!

67custom · Guru

Beau 69 wrote:
Not sure of category
Speedometer is out 50% roughly need driven gear change in housing.
TH 350- 3.55 ratio- 27.4 In tire diameter.
Looks like change to light green 34 tooth driven gear, not sure of drive gear tooth count?????????????
Any help or charts available or anyone who has made change for accuracy.
Would be cheaper than going to aftermarket electronic GPS Speedo.

Thanks

http://www.bgsoflex.com/speedo1.html

Been using this one for years and it works good for me.

Beau 69 · Addicted!

67custom wrote:
Beau 69 wrote:
Not sure of category
Speedometer is out 50% roughly need driven gear change in housing.
TH 350- 3.55 ratio- 27.4 In tire diameter.
Looks like change to light green 34 tooth driven gear, not sure of drive gear tooth count?????????????
Any help or charts available or anyone who has made change for accuracy.
Would be cheaper than going to aftermarket electronic GPS Speedo.

Thanks
http://www.bgsoflex.com/speedo1.html
Been using this one for years and it works good for me.

That table is what I was looking for .... Thanks Helps a lot.

jfkheat · Guru

Just an FYI, as of a few years ago the local Chevrolet dealer parts department could still get the gears. If I remember correctly, they were around $7 US each.
James