Author Topic: Jack mast proper finish  (Read 1218 times)

Offline usraptr

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Jack mast proper finish
« on: December 05, 2012 - 09:26:35 PM »
A recent post showed how a member restored his tire jack mast and had it plated with zinc dichromate plating.   However, in reviewing old pics and looking at jacks in restored cars I don't see any others that have the zinc dichromate plating.  Were the OEM jack masts in fact plated with zinc dichromate plating or was that just a nice touch our member added to his car?
1970 Plymouth 'Cuda.  Matching numbers 440 U Code, 4 speed pistol grip, Rallye dash, AM 8 Track, Shaker hood, 15 inch rallye wheels, Dana 60 4.10, Super Track Pak.  One of 134 - 440 "U" coupes codes built in 1970 and one of 100 - 440 Super Track Paks built in 1970.

Restoration pictures at:  http://spanks4thememory.smugmug.com/Cars/70-Cuda/7240639_M24oi#465274575_2MBqW
(Edited 8-1-17)

"usraptr" = United States raptor - bird of prey = United States Bald Eagle.  FYI, somebody else thought of it first so I had to drop the "O" in raptor.




Offline burdar

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Re: Jack mast proper finish
« Reply #1 on: December 06, 2012 - 09:18:18 AM »
I think you are refering to me.  The original mast was zinc dichromate.  I think it's hard to see in the before picture because the flash bleaches it out.  If you subject zinc to muriadic acid, it will bubble and fiz until the zinc is gone.

Hollow tube masts were zinc dichromate.  T-style masts were NOT zinc dichromate.

Tube style
http://board.moparts.org/ubbthreads/upload2/5826621-01%2817%29.JPG

T-style mast
http://www.moparaction.com/Article/PoP/S.jpg

Offline usraptr

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Re: Jack mast proper finish
« Reply #2 on: December 06, 2012 - 12:45:00 PM »
Which style mast was correct for a '70 Cuda, hollow or T style?
1970 Plymouth 'Cuda.  Matching numbers 440 U Code, 4 speed pistol grip, Rallye dash, AM 8 Track, Shaker hood, 15 inch rallye wheels, Dana 60 4.10, Super Track Pak.  One of 134 - 440 "U" coupes codes built in 1970 and one of 100 - 440 Super Track Paks built in 1970.

Restoration pictures at:  http://spanks4thememory.smugmug.com/Cars/70-Cuda/7240639_M24oi#465274575_2MBqW
(Edited 8-1-17)

"usraptr" = United States raptor - bird of prey = United States Bald Eagle.  FYI, somebody else thought of it first so I had to drop the "O" in raptor.

Offline burdar

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Re: Jack mast proper finish
« Reply #3 on: December 06, 2012 - 01:55:48 PM »
The picture of the T-style jack is from Dave Walden's 70 Challenger.  I assume the Cuda jack would be the same style.  The T-style jack mast is just painted silver I believe.

Offline usraptr

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Re: Jack mast proper finish
« Reply #4 on: December 06, 2012 - 11:28:47 PM »
Thanks Burdar.   :2thumbs:
1970 Plymouth 'Cuda.  Matching numbers 440 U Code, 4 speed pistol grip, Rallye dash, AM 8 Track, Shaker hood, 15 inch rallye wheels, Dana 60 4.10, Super Track Pak.  One of 134 - 440 "U" coupes codes built in 1970 and one of 100 - 440 Super Track Paks built in 1970.

Restoration pictures at:  http://spanks4thememory.smugmug.com/Cars/70-Cuda/7240639_M24oi#465274575_2MBqW
(Edited 8-1-17)

"usraptr" = United States raptor - bird of prey = United States Bald Eagle.  FYI, somebody else thought of it first so I had to drop the "O" in raptor.