Topic: 1966 U-bolts 200 Engine Rear Suspension shock plate

[Maksim27]

I was wondering if the U Bolts were bare metal or darkened from the Factory on 6 cylinder Mustangs.  Also, were there any daubs on these such as pink or purple in color and on which location.   

[J_Speegle]

Don't have a MPC handy to see if the 6 cylinder used the same rearend U joints as the V8 If so then yes paint daubs have been found on some.  Will have to double check before posting a suggestion

[Maksim27]

Here is some differences from the 6 cylinder U-Bolts to other U-Bolts that I have extra that are probably for V8 cars.  The 6 cylinder are the shorter U-Bolts.

[J_Speegle]

Here is some differences from the 6 cylinder U-Bolts to other U-Bolts that I have extra that are probably for V8 cars.  The 6 cylinder are the shorter U-Bolts.

Thanks So si9nce they are different we can assume that the V8 markings I have don't apply. Don't recall seeing others on 6 ylinder 66's that I have pictures of

Sorry. At this point I would not place any so that if you do find the correct markings they can be added and in the mean time not influence others by applying unsupported (multiple original examples) markings

[Maksim27]

I know that the V8 U-Bolts were bare steel, but not sure if the 6 cylinder U-bolts were phosphate coated. 

[J_Speegle]

I know that the V8 U-Bolts were bare steel, but not sure if the 6 cylinder U-bolts were phosphate coated.

Believe you will that both were provided by the same provider and in turn handled and treated the same way

[jwc66k]

I know that the V8 U-Bolts were bare steel, but not sure if the 6 cylinder U-bolts were phosphate coated.

Let me ask you what you would do to "restore" the U-Bolts to at least keep rust under control?
Jim

[Maksim27]

Some restorers use silicon as a rust protectant...But keep silicon away from paint.

[J_Speegle]

Some restorers use silicon as a rust protectant...But keep silicon away from paint.

Would not suggest the use of silicon. MUCH better choices out there IMHO

[Bossbill]

Some restorers use silicon as a rust protectant...But keep silicon away from paint.

DIYers might use silicone. I doubt a pro restorer would.
Silicone has no effect on paint that is dry.
However, if you have this stuff in the shop it is possible to get it on an unpainted surface.
If you try to paint a surface that has even a minuscule amount of silicone on it you will get fisheyes in the paint.

I don't store silicone of any type in the main shop.

[Bob Gaines]

Some restorers will zinc phosphate the parts before tumbling to help fill any microscopic pits . The tumbling removes most of the phosphate but whats left  helps with smoothing out the surfaces and also gives the added benefit of helping retain any oil based rust inhibitor.