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914World.com _ Originality and History _ Crossmember difference 4/6 914
Posted by: Cairo94507 Jan 15 2018, 08:21 AM
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:
This is a correct 6 cylinder crossmember:
I hope that helps in the future. 
Posted by: dr914@autoatlanta.com Jan 16 2018, 08:19 AM
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
Posted by: mskala Jan 16 2018, 09:33 PM
I disagree.
6-cyl photo (sorry for quality but I have another car under it right now).
Posted by: mepstein Jan 17 2018, 06:16 AM
I disagree.
6-cyl photo (sorry for quality but I have another car under it right now).
I thought all the early adjusters used allen heads. It would be interesting to see what the part number is on the crossmember.
Posted by: mskala Jan 17 2018, 07:57 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.
Posted by: mepstein Jan 17 2018, 08:18 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
Posted by: gms Jan 17 2018, 11:04 AM
Should have 911 type support (with flat side) and early allen head adjuster
Posted by: gms Jan 17 2018, 12:20 PM
Also I have found the early steering rack on all my 1970 914/6s (no data on 1971 & 72)
Posted by: mskala Jan 17 2018, 07:10 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. 
Posted by: mepstein Jan 17 2018, 08:17 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.
Someone was in there to modify those bolts. 25 years is a long time.
Posted by: 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.
Posted by: Jonathan Livesay Jan 19 2018, 04:32 PM
I disagree.
6-cyl photo (sorry for quality but I have another car under it right now).
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.
Posted by: gms Jan 19 2018, 06:33 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?
Posted by: mepstein Jan 19 2018, 06:45 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.
Posted by: gms Jan 19 2018, 06:48 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
Posted by: mskala Jan 19 2018, 10:04 PM
I have Boge struts and 911-splined arms.
Posted by: Jonathan Livesay Jan 20 2018, 11:11 AM
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.
Posted by: mepstein Jan 20 2018, 11:15 AM
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.
Posted by: gms Jan 22 2018, 02:43 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
Posted by: dug Feb 11 2018, 08:19 PM
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
Posted by: mskala Feb 24 2018, 11:31 AM
Anybody notice in the recent thread on 9140430355 that it too has the 'wrong'
crossmember? 
Posted by: sixnotfour Feb 24 2018, 05:37 PM
yes but the correct adjuster bolt..need to know spline count on torsion bars/ control arm...
I have 390, 094 , 854 ? , 1853, all have the correct parts
Posted by: larryM Jul 26 2018, 01:18 PM
A part's presence in a 48 year old car does not prove anything.
dug
once upon a time we all "used" these cars
and some of us converted "real sixes" to later 911 crossmembers ! (even alu)
- performance goals sometimes outweigh museum-quality objectives
Posted by: Perry Kiehl Jul 26 2018, 04:20 PM
It also looks like the adjusters were allen socket that had a piece of hex welded in it and cut off to leave a hex stud
Posted by: larryM Jul 28 2018, 10:00 PM
It also looks like the adjusters were allen socket that had a piece of hex welded in it and cut off to leave a hex stud
WHY BOTHER?ya think "they" tho't it makes the car more valuable > or what?
Posted by: rgalla9146 Nov 24 2018, 04:55 PM
It also looks like the adjusters were allen socket that had a piece of hex welded in it and cut off to leave a hex stud
WHY BOTHER?ya think "they" tho't it makes the car more valuable > or what?
Less bother than waiting for the replacement part
Expedient 'repair' of a striped Allen socket adjuster.
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