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914/4: 70 71 72 73 74 75 76 914/6: 70 71 72

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> Crossmember difference 4/6 914, Yes, they are different
Cairo94507
post Jan 15 2018, 08:21 AM
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Recently brought to my attention when I collected my parts from the shop back east, I mistakenly got a 4 cylinder crossmember back, not my correct 6 cylinder crossmember. That led me to learn, (thanks Jim, aka Banananose) how to differentiate the two. Here you go:

This is a 4 cylinder crossmember:
Attached Image

This is a correct 6 cylinder crossmember:
Attached Image

I hope that helps in the future. (IMG:style_emoticons/default/beerchug.gif)
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dr914@autoatlanta.com
post Jan 16 2018, 08:19 AM
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one learns something every day, never noticed the difference. Thanks for sharing. Just went out and looked at a six and a four. Sure enough
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mskala
post Jan 16 2018, 09:33 PM
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I disagree.

6-cyl photo (sorry for quality but I have another car under it right now).
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mepstein
post Jan 17 2018, 06:16 AM
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QUOTE(mskala @ Jan 16 2018, 10:33 PM) *

I disagree.

6-cyl photo (sorry for quality but I have another car under it right now).
Attached Image

I thought all the early adjusters used allen heads. It would be interesting to see what the part number is on the crossmember.
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mskala
post Jan 17 2018, 07:57 AM
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Do they have a part number stamped on the crossmember?

Another thing, I'll get a better pic, but the adjuster screws just have an 8mm hex section welded onto the threaded section.
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mepstein
post Jan 17 2018, 08:18 AM
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QUOTE(mskala @ Jan 17 2018, 08:57 AM) *

Do they have a part number stamped on the crossmember?

Another thing, I'll get a better pic, but the adjuster screws just have an 8mm hex section welded onto the threaded section.

Might have been a regular bolt at one time
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gms
post Jan 17 2018, 11:04 AM
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Should have 911 type support (with flat side) and early allen head adjuster
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gms
post Jan 17 2018, 12:20 PM
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Also I have found the early steering rack on all my 1970 914/6s (no data on 1971 & 72)
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mskala
post Jan 17 2018, 07:10 PM
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All I know is I bought this car in '99 from a guy who had it since '74, and lots of
records and kept old parts. Highly doubtful that it was changed.
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mepstein
post Jan 17 2018, 08:17 PM
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QUOTE(mskala @ Jan 17 2018, 08:10 PM) *

All I know is I bought this car in '99 from a guy who had it since '74, and lots of
records and kept old parts. Highly doubtful that it was changed.
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Someone was in there to modify those bolts. 25 years is a long time.
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914Sixer
post Jan 17 2018, 10:46 PM
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I have seen them all the ways shown. I maintain it was what they had on the shelf that week. The square end cross member looks to be 901 341 013.02. According to the PET 69-73 911 and all 914 share the same cross member 901 341 013 03. Version 01 was for the 64-68 cars.
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Jonathan Livesay
post Jan 19 2018, 04:32 PM
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QUOTE(mskala @ Jan 16 2018, 07:33 PM) *

I disagree.

6-cyl photo (sorry for quality but I have another car under it right now).
Attached Image

Mine has the same as yours. My car is vin #9140430275, I see from the vin# list that your vin is 33 down from mine, I wonder if that has anything to do with which type was used? Of course over over 48 years who knows what might have been changed and why.
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gms
post Jan 19 2018, 06:33 PM
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I would be interested to know if you have 914/4 a-arms as well?
Do you both have 914/6 Boge strut towers?
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mepstein
post Jan 19 2018, 06:45 PM
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QUOTE(gms @ Jan 19 2018, 07:33 PM) *

I would be interested to know if you have 914/4 a-arms as well?
Do you both have 914/6 Boge strut towers?

I was wondering that too. 914-4 torsion bars? or not.
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gms
post Jan 19 2018, 06:48 PM
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QUOTE(914Sixer @ Jan 17 2018, 10:46 PM) *

I have seen them all the ways shown. I maintain it was what they had on the shelf that week. The square end cross member looks to be 901 341 013.02. According to the PET 69-73 911 and all 914 share the same cross member 901 341 013 03. Version 01 was for the 64-68 cars.

My parts catalog shows:
914-4 = 914 341 013 03
914-6 = 901 341 013 03
911 with shock absorber struts is 901 341 013 03 (1970-71)
911 with shock absorber struts is 911 341 013 05 (1972-73)
911 with spring struts is 901 341 013 03

as I recall the pre 1969 911 suspension was a totally different animal

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mskala
post Jan 19 2018, 10:04 PM
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I have Boge struts and 911-splined arms.
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Jonathan Livesay
post Jan 20 2018, 11:11 AM
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QUOTE(mskala @ Jan 19 2018, 08:04 PM) *

I have Boge struts and 911-splined arms.

I know the torsion bars are different splines than on my 4 cylinder cars. If it has 6 front brakes then it has 6 struts, no? My car is completely disassembled, I will check next time I am over at my garage.
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mepstein
post Jan 20 2018, 11:15 AM
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QUOTE(Jonathan Livesay @ Jan 20 2018, 12:11 PM) *

QUOTE(mskala @ Jan 19 2018, 08:04 PM) *

I have Boge struts and 911-splined arms.

I know the torsion bars are different splines than on my 4 cylinder cars. If it has 6 front brakes then it has 6 struts, no? My car is completely disassembled, I will check next time I am over at my garage.

If it has 6 front brakes then it has 6 struts - correct. Original color would be grey.
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gms
post Jan 22 2018, 02:43 PM
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QUOTE(Jonathan Livesay @ Jan 20 2018, 11:11 AM) *

QUOTE(mskala @ Jan 19 2018, 08:04 PM) *

I have Boge struts and 911-splined arms.

I know the torsion bars are different splines than on my 4 cylinder cars. If it has 6 front brakes then it has 6 struts, no? My car is completely disassembled, I will check next time I am over at my garage.

-6 struts
914.431.092.00
914.431.093.00
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dug
post Feb 11 2018, 08:19 PM
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The 914-6 cross member with flat ends, and the front and rear torsion bar carriers all have a P in the Triangle stamp indicating a Porsche part.

The 914-4 cross member and torsion bar carriers all have VW stamps.

A part's presence in a 48 year old car does not prove anything.

Porsche would not have had the 914-4 parts on their shelf. A lot can happen in the first 3 years of ownership. It would not surprise me if someone hit a curb hard and bend the control arm and screwed up the crossmember. The VW part is totally compatible, so sourcing one from a junk yard would have been the obvious move in 1970-1973.

cheers,
dug
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