speedometer drive and driven gears

[mlm0]

I now have auto 89 vette with 2.59 rear gears I am switching to 3.07. Does anyone know what drive and driven gears I should have. Do I have to switch driven gear or anything else while I'm doing it?

Thanks in advance

Mike

 

[ecss]

http://www.corvetteforum.net/c4/vettenuts/SpeedometerGearshtm.shtml

Appears you only have to change the driven gear Blue to Green.

 

[mlm0]

chart is perfect thanks

the way I read chart is i have to changed driven gear from white to green,, I have 275 tires. It also looks like I have to change vss

Mike

 

[ecss]

chart is perfect thanks

the way I read chart is i have to changed driven gear from white to green,, I have 275 tires. It also looks like I have to change vss

Mike

'
My mistake I was looking at 2.73. :eyerole

700R4 Parts List at PATC Raptor Transmissions

These guys have a tech. support phone number if you have any questions.
They show a VSS housing that will accept 40-45 T gears. (Says aluminum gears
and not plastic)?

Supposedly it's not available from GM anymore. Might want to verify the actually connector plug is the same if you buy their VSS housing.

 

[mlm0]

I called them, but they did not have one that would work.. Having trouble finding one

thanks for your help

 

[ecss]

One option is to use a conversion box. You take the current VSS signal and convert it to the
proper frequency. No need to buy a different driven gear.

http://www.summitracing.com/parts/dak-sgi-5/overview/