Bugz
The early Fox body Mustang had an overdrive 4 speed toploader. I'm
not sure of the torque level these gears can take. I believe the Fox body
toploader had an aluminum body but the overdrive gear set can be install
into the cast iron case.
Hot Rod Magazine Sept 1982 has an article about this; Top Loaded For Bear.
Aluminum 20% OD, Granada EODR-7003-AA
Aluminum 30% OD, V8 E2ZR-7003-AA
OD toploaders were made by Tremac in Mexico and the article refers to Stick
Only of Sun Valley California.
Ron Fraser
-----Original Message-----
From: tigers-bounces@autox.team.net [mailto:tigers-bounces@autox.team.net]
On Behalf Of Rense, Mark (GE, Appl & Light)
Sent: Wednesday, August 25, 2010 11:49 AM
To: tigers@autox.team.net
Subject: [Tigers] Alternate Rear End Gears
Speaking of gear ratios, has anyone ever found a Dana 44/Salisbury rear end
ratio LOWER than the 2.88:1 ratio in our stock differentials? I searched the
web and found ratios as high as 5.89:1 (imagine, a top speed of 74 MPH at
6000 RPM, but would you get there fast!). Assuming you convert your
Toploader to the wide ratio (2.78 1st) gear set, dropping to a 2.66:1 rear
gear set would still give you a better launch off the line yet drop your 4th
gear cruising RPM about 300 rpm, so for a 205/50R15 tire, you would be doing
2700 RPM instead of the 3000 RPM with the stock 2.88:1 ratio.
Why ask this, you say? Well, my stroker motors push out over 400 ft-lbs, and
the five speed T5s that fit inside the Tiger tunnel are not capable of
handling that level of torque unlike our faithful Toploader. Plus with that
amount of low end grunt the car will launch off the line hard in pretty much
any gear you choose.
Any thoughts?
Bugz
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