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  #1 (permalink)  
Old August 25th, 2008, 11:55 AM
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Speedo Gears 200-4r
While I have my trans out I'd like to swap in somespeedo gears that get me at least close to my combo. I've looked at a couple of the calculators but I'm unsure as to what tooth count gears are readily available. I'm running a 27.8" tall rear tire and 3.73 gears. What would be the closest available speedo gear combo for this setup? Where can they be had?
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67 Camaro SS-350 Convert.
406SBC/200-4r/12Bolt 3.73 Truetrac
Len's 67 Camaro PT Garage
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Old August 25th, 2008, 02:24 PM
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This is the one I use.

TCI - TECHNICAL INFORMATION: Speedometer Gears
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77Monte 385 SBC 200-4r
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Old August 25th, 2008, 03:29 PM
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Imo
A 28 in. tire and 3.73 gears puts you right at where the factory speedo gear are closest. Factory is 26 in. tire and 3.42 gears. Don't believe any other gear combo will be any better than the stock GN orange drive gear and the blue 30 tooth driven gear.
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Old August 25th, 2008, 04:54 PM
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Is there a source for the Blue 30 tooth driven and orange 11 tooth drive gears? Looks like the 27 tooth driven and 10 to drive could work as well.
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67 Camaro SS-350 Convert.
406SBC/200-4r/12Bolt 3.73 Truetrac
Len's 67 Camaro PT Garage
Last edited by LCAC_Man : August 25th, 2008 at 05:08 PM.
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Old August 25th, 2008, 09:25 PM
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I dont think there is a 27 driven available
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Old August 25th, 2008, 10:46 PM
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Looks like TCI & Summit have the 27th driven gear. MonteSS's came with 3.73 Diff. gears with 10th green drive gear not sure what factory driven gear or tire dia. was.

TCI - COMPONENTS: Speedometer Gears

summitracing.com
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Old August 25th, 2008, 11:50 PM
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Quote:
Originally Posted by SSedan64 View Post
Looks like TCI & Summit have the 27th driven gear. MonteSS's came with 3.73 Diff. gears with 10th green drive gear not sure what factory driven gear or tire dia. was.

TCI - COMPONENTS: Speedometer Gears

Summit Racing - High Performance Car and Truck Parts | 800-230-3030
That looks like the combo I'll go with, it appears that the 11 tooth gear is hard to get.
Nice chart on available gears and combos:
200-4R Tip Sheet from PATC, 200-4R
They seem to have about the best price ($55 for the drive gear, $14 for the driven) that I've found.
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67 Camaro SS-350 Convert.
406SBC/200-4r/12Bolt 3.73 Truetrac
Len's 67 Camaro PT Garage
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Old August 26th, 2008, 12:22 AM
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Check Chris's site ckperformance.com looks like his prices are lower for either combo of gears.
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Old August 26th, 2008, 01:21 AM
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CK's are cheaper than TransCenter Or try Bulkpart. Email for prices on gears.
Automatic Transmission Parts & Transmission Coolers, Makco Distributing
Last edited by SSedan64 : August 26th, 2008 at 01:29 AM.
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Old August 26th, 2008, 09:57 AM
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Thanks Guys, I'll check both of them out.
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67 Camaro SS-350 Convert.
406SBC/200-4r/12Bolt 3.73 Truetrac
Len's 67 Camaro PT Garage
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Old August 27th, 2008, 03:05 AM
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Speedo Chart
Another Speedo Chart I ran across>
Speedometer Gear Chart 200-4R
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Old August 27th, 2008, 11:38 AM
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Quote:
Originally Posted by SSedan64 View Post
CK's are cheaper than TransCenter Or try Bulkpart. Email for prices on gears.
Automatic Transmission Parts & Transmission Coolers, Makco Distributing
Bulkpart replied back that they don't carry them. Looks like CK is the place.
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67 Camaro SS-350 Convert.
406SBC/200-4r/12Bolt 3.73 Truetrac
Len's 67 Camaro PT Garage
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