62 vette spedometer
Thread Starter
Racer
Joined: Aug 2013
Posts: 445
Likes: 37
62 vette spedometer
my speed registers 20% faster then actual when driving at any speed. I understand there is 5 different gears one can buy.They are color coded blue red green yellow and natural. I have 327 engine and believe 411 rear,I think, not positive) not sure which gear is in the car. Any ideas which color gear would correct the situation.
Pro
Joined: Dec 2009
Posts: 508
Likes: 13
From: Godfrey Illinois
my speed registers 20% faster then actual when driving at any speed. I understand there is 5 different gears one can buy.They are color coded blue red green yellow and natural. I have 327 engine and believe 411 rear,I think, not positive) not sure which gear is in the car. Any ideas which color gear would correct the situation.
Melting Slicks
Joined: Jul 2004
Posts: 2,869
Likes: 196
From: Maryland
Before you order the plastic drive gear ascertain the the driven gear located in the tailshaft will match the plastic gear you are ordering. There were 2 sizes of driven gears. If the gears are incompatible you will either have to remove the transmission and install the correct driven gear or you could purchase a speedometer ratio adapter.
http://www.bobsspeedometer.com/1/120/ratio_adapter.asp
http://www.bobsspeedometer.com/1/120/ratio_adapter.asp
Team Owner
Joined: Oct 2000
Posts: 38,897
Likes: 1,926
From: Washington Michigan
my speed registers 20% faster then actual when driving at any speed. I understand there is 5 different gears one can buy.They are color coded blue red green yellow and natural. I have 327 engine and believe 411 rear,I think, not positive) not sure which gear is in the car. Any ideas which color gear would correct the situation.
Pro
Joined: Dec 2009
Posts: 508
Likes: 13
From: Godfrey Illinois
[QUOTE=JohnZ;1589289420]You can't select the proper DRIVEN gear unless you know what rear axle ratio you have. [/QUOTE/]
For sure. He should first remove any doubt what his RE gear ratio is before proceeding further.
[/QUOTE/]For sure. He should first remove any doubt what his RE gear ratio is before proceeding further.
