Driveline/Differential Decisions

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#1 (permalink)

06-27-2007, 10:24 AM

Dangerous Doug Dangerous Doug is offline

CC Member

Join Date: Apr 2004

Location: Scotts Valley, CA

Cobra Make, Engine: ERA 289 FIA #2108

Posts: 1,882

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Driveline/Differential Decisions

Time to procure that ERA rear suspension for my 289 FIA!

Bob, I have some questions:

I'm leaning toward a Tremec 5-speed. Summit lists three different gear ratios. With my objective being streetable drivability plus some "spirited back country windy road driving" can you recommend which ratio I should choose?

Also, with the transmission choice picked out, what differential gear ratio should I run?

I'll be calling Peter for a quote for the rear suspension plus some other goodies.

Anyone else have recommendations for the Tremec 5-speed? Which gear ratios did you select and why. What differential gear ratio are you running?

By the way, the power plant will likely be a 347 @ 425 bhp.

Dangerous Doug

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