i know ive measured these before, but im coming up with conflicting info

what have you found?

Studs
I think the curved stud is for a standard full size spare.

Sorry to muddy the waters, but...

My 1970 Challenger convertible (Hamtramck, SPD 915) has a straight stud of the same style, in between the two lengths Snoopy pictured. About 8.25" to 8.5" (it's bolted in, so I can't get a precise measurement).

Mine (hardtop) is 6 1/4" OAL.

Tav

I remember years ago pre 2005 I had a pic on my old computer that had 3 lenths for challenger{i was just thinking about it the other day}
1 for hard top with regular spare and one for space saver
and 1 for convert but my memery is not what it used to be so waiting to see whats is posted

Off topic (kind of) but I documented at least five different lengths of lug nut/jack handles for E Body cars. The examples I researched during the Challenger project varied as much as an inch and a half in length! The measurements were all taken from ORIGINAL, unmolested 1970 Challengers. I don’t think the items in the trunk were a focal point of “exactness” in the overall scheme of things. From taking to guys who worked on the assembly line, they used whatever was available for certain items as long as it did not fall too far out of the specified dimensions. I would also conclude that when the assembly line ran low on certain variations of trunk items, the line manager would make an executive decision to substitute a different but similar part. You would never know the difference unless these parts were compared in a side by side fashion.

hi
thanks for your input, i know its valid and well researched when you post Dave!

but from what im seeing + hearing it appears there is about a 2" variance in lengths

someone has a 6-1/4" length + i have found 8" length in a few cars i researched (cudas)that just seams extreme for a part that you wouldnt have thought would run out that quickly

and also, its not like 90% of the cars are 1 way + there are a few exceptions to the rule, it almost appears that
there isnt a rule

i wouldnt think there would be a difference between cuda + challenger on this

thanks again for all of your input

tony

The one in my 70 Cuda conv. is about 8 1/4" OAL.

Did they use the straight ones for verts and the bent ones for cars with a roof? What was the rule so to say?

Quote:

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I wouldn't think there would be a difference between cuda + challenger on this

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Both cars where built at the same plants and used the same basic trunk pan, spare and other trunk accessories. Why would there be a difference in the wheel mounting stud?

I don't think the part was that critical. I would bet that if they ran out of the correct one, they would grab any stud that would fit just to keep the line flowing.

It appears that the "If there is a problem, let them sort it out at the dealer" rule applied in these situations.

I don't know about any of you, but in all the years I have owned cars, I don't ever remember having the desire to compare the length of my stud to someone else's. I wouldn't want to find out mine was to short. Who wants rod envy?

Here are the part numbers from an engineering print and the 70-71 parts book showing 3 different studs (rods) for 70-71 E-Bodies.

Would not the space saver be much longer since the tire, jack hook and bottle all go on it?

Here is an old thread on the subject.

71 Cuda convertible

8-1/4"

Bill Rolik

74 Barracuda hardtop: 8 7/8 tip to tip straight,no curve