Differences between 83 and 93 rack and pinon???

leefantozi · 03-09-2003, 09:18 PM

I am noticing that my 83 mustang's rack and pinion has a different part # than a 93?

Can anyone help me with the differences before I buy one?

Steve

84LX89GT · 03-09-2003, 10:19 PM

For power steering:
according to my 5.0L specifications book '79-'83.5 models had a variable ratio rack whereas later models had a constant ratio.
Also earlier models (pre- '83.5) offered a "high-effort"' 20:1 ratio rack, whereas later models had the 15:1 ratio rack.
All through production there was also two models for the same P/S racks, one made by Ford the other by TRW....i don't and can't find any stated differences between the different manufacturer's designs so i believe it's of the same design.

Shaggy · 03-09-2003, 10:41 PM

As stated before the ratios are different other then that they are the same and are interchangable. The high performance rack for 79-84's that svo sells/sold don't know if they still market it or not is really just the later model rack.

leefantozi · 03-09-2003, 11:29 PM

Thats good info!

Now which rack is better the TRW or Ford ?

And which ratio do I want 2.5 or 2.25?

BTW, The mounting bushings are different. Anyone know which bushings I need for my 83? Urethane ones only plz

Steve

03-09-2003, 09:18 PM	#1
leefantozi Registered Member Join Date: Dec 2002 Posts: 4	Differences between 83 and 93 rack and pinon??? I am noticing that my 83 mustang's rack and pinion has a different part # than a 93? Can anyone help me with the differences before I buy one? Steve

03-09-2003, 10:19 PM	#2
84LX89GT Mustangs Join Date: Jul 2000 Posts: 1,938	For power steering: according to my 5.0L specifications book '79-'83.5 models had a variable ratio rack whereas later models had a constant ratio. Also earlier models (pre- '83.5) offered a "high-effort"' 20:1 ratio rack, whereas later models had the 15:1 ratio rack. All through production there was also two models for the same P/S racks, one made by Ford the other by TRW....i don't and can't find any stated differences between the different manufacturer's designs so i believe it's of the same design. __________________ 2005 Suzuki Hayabusa GSX1300-R 1980 Ford Thunderbird - 255 V8 ported heads, 5.0L ported stock headers, O.R. H-pipe and Flowmaster 2-chambers, dual roller timing chain hi-po Mack Truck hood emblem 1985 Mustang GT 5.0L T5, F-303, GT40p, headers, off-road h, flowmasters, MSD stuff, etc. Sold 02/06/04 1989 Mustang GT ET: 13.304@102.29 mph (5-24-03) Sold - 1998 Mustang Cobra coupe, 1/4 mile - street tires: 13.843@103.41 (bone stock)

03-09-2003, 10:41 PM	#3
Shaggy Registered Member Join Date: Feb 1999 Location: Houston,TX Posts: 466	As stated before the ratios are different other then that they are the same and are interchangable. The high performance rack for 79-84's that svo sells/sold don't know if they still market it or not is really just the later model rack. __________________ A good plan, violently executed now, is better than a perfect plan next week. George S. Patton, General (1885-1945)

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03-09-2003, 11:29 PM	#4
leefantozi Registered Member Join Date: Dec 2002 Posts: 4	Thats good info! Now which rack is better the TRW or Ford ? And which ratio do I want 2.5 or 2.25? BTW, The mounting bushings are different. Anyone know which bushings I need for my 83? Urethane ones only plz Steve