Re: mail Digest for 5 May 2005 in hour 15:00

[farna@xxxxxxx]

If first gear isn't low enough mileage in town will suffer with rear axle ratios like 2.35 / 2.37. That's why the OD trans -- you can have a low enough axle for good take-off/towing capacity and still get good highway mileage. To high a gear will hurt mileage more than help. A lock-up torque converter is a must. The best bet is a manual overdrive, of course! 

On May 5, 2005 carmine@xxxxxxxxxxxxx wrote:

> 
> My two cents worth:
> 
> Don't use an overdrive, more parts spinning around will use more fuel.
> Use the Warner Gear aluminum transmission, if you must the 998 allows
> the lockup convertor and a lower first gear.  AMC 7&9/16 axles can be
> had with 2.35:1 and 2.37:1 ratios.  There is no point in using extra
> gears to spin the drive shaft and pinion faster so that it will turn the
> ring gear the proper speed.
> 
> By way af comparison my 1971 Javelin with 304 and 2.87:1 gear ratio got
> 20mpg.  I don't think the large axle is required if you use a ratio with
> a large pinion.
> 
> Peter Marano
> 
> Kenosha WI
> 
> 
> 
> .


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