[TR] TR7 or TR8 NOS factorty close ratio gear set for 5 speed gear box

[Ted Schumacher]

Hello list. We have a NOS factory competition department close ratio 
gear set for a 5 speed LT77 gearbox.  In 1979/80 time period, ARG 
(Austin Rover Group) put together a factory rally program with Tom 
Walkinshaw (yes the same Tom Walkinshaw who ran the GTP Jaguar program a 
few years later) based on the Rover SD1 platform.  They had to 
homologate many parts to make the car perform. Included among these 
parts were limited slip differentials and close ratio gear sets. They 
made 200 of each to make the homologation requirements. We wound up with 
50 each of limited slips and close ratios.  All were sold long ago. 
Recently one of my old time customers contacted me. He still had a new 
close ratio gear set he purchased from us that had never been installed. 
We now have it back in our stock.  Below are ratios of both stock and 
close ratio gear sets. The CR gear set in a TR8 running OE tires & 
wheels and stock 3.08 diff would reach almost 60 mph in 1st gear. Using 
5500 rpm as a base, here are the numbers.  Gear set consists of new lay 
gear and new 1st, 2nd and 3rd gears.  Price is $!000 and includes new 
oil pump, gaskets and seals.  Please feel free to ask questions. Thanks 
for your time. Ted

Stock               Driveshaft RPM @ 5500 engine RPM     Close ratio    
         Driveshaft RPM @ 5500 engine RPM

1st - 3.32        1656.63                               1st - 2.32    
         2370.69

2nd - 2.08       2644.23                               2nd - 1.62        
    3395.07

3rd - 1.6 1      3416.15                               3rd - 
1.31            4198.48

4th - 1:1                                           4th - 1:1

5th - .83                                           5th - .83

-- 
Ted Schumacher
tedtsimx at bright.net
http://www.tsimportedautomotive.com
108 S. Jefferson St.
Pandora, Ohio, USA 45877
Fax: 419.384.3272 (24 Hrs.)
Phone: 800.543.6648 (US & Canada)
Tech/ Gen. Information/ Worldwide: 419.384.3022