Re: IML: Sure-grip rear end, Gear Ratios & Towing

[FltSgt@xxxxxxx]

And a Happy New Year To All

A side subject that is related to this is "Towing with our Imperials".

I have a '63 Le Baron with the Sure-Grip and the ratio is 3:23 to one ( 
un-altered OEM ).  I have found out that pulling a '66 Le Baron east-bound with the 
'63 on I - 80 up the grade from Calif to Reno can be done.  The same trip 
encludes E-B I - 80 out of Salt Lake City with its grade heading back to Colo.

The 1967 Chrysler Towing Brochure states, " Remember a Chrysler, any 
Chrysler, will tow loads up to 2500 pounds without the addition of a single extra-cost 
item-except the hitch and proper turn signal flasher, of course. "  

Later in the brochure it states, " For towing heavier loads get this special 
trailer-towing package. (It cost just $53.55.)  And you get a package of 
heavy-duty components for towing loads up to 5500 pounds. "

The center portion of the brochure shows an Air Stream being towed up a grade 
with a family of four in the car.  Two of the items they speak of for the tow 
vehicle is A/C and Auto-Pilot.  The rear axle ratio for the $53.55 package is 
3:23 to one.   Looking at what is included for the $53.55 towing pkg and how 
Imperials are equipped over the STD Chrysler, it seems that it is the ratio of 
the rear axle that will make your 1967 and newer Imperial from a 2500 pound 
rated tow vehicle ( 2:93 to one ) to the 5500 pound rated tow vehicle ( 3:23 to 
one ).  The STD ratio for the New Yorkers was 2:76 to one.

And while on the related subject, the 1955 Air Stream Company advertisement 
of the twin axle Overlander shows a '55 Chrysler two door pulling it.  In 1965 
they did a performance test using a 383 powered Dodge Polara ( 2:76 to one ) 
pulling a twin axle AS Overlander at speeds of over 90 mph and the back cover 
of the 1978 Dodge Truck brochure shows a D150 pulling the Overlander.

I hope I covered enough of the Imperial content to keep the " OT " police 
away from me.

                                       Rodger & Gabby
                                       Colo Spgs

'47 De Soto Custom w/Fluid Drive & passenger door mounted swamp cooler
'63 Le Baron w/F-Sweep trunk lid & std A/C
'66 Le Baron w/dual A/C & reverbed AM/FM
'70 Overlander - InterNational
'77 D150 w/360 & dual intake, NP 4 Spd, 12 Bolt Axle, OEM Buckets & etc


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