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View Full Version : 740/940 cross-member


professor245
03-01-2011, 07:25 PM
Ok,
we know that 7/9 cross-member has quite flex to it, and I saw at least 5 cracked ones, in the same place, and as I found out it's quite common, especially when D24T pressing down:nod:
I know about 960 parts added to 940 cross member, but what I want to know has anyone straightened it with some plates, welds...
So pics are a must:oogle:

WindowsBreakerG4
03-01-2011, 07:31 PM
Thee pre88 ones crack aftr that they shlould be fine. Volvo redesigned the crossmember

professor245
03-01-2011, 07:36 PM
Ohhh really, that's good to know...but I saw some 940 with cracked cross members...
How are the redesigned ones considering the flex?

WindowsBreakerG4
03-01-2011, 09:06 PM
Interesting about the 940 ones, we never got D24s after 86 I think it was and I could count the number of 700 series diesels i've seen on 1 hand. I've never heard of the later ones cracking though

GSWAGON
03-01-2011, 09:50 PM
where do they normally crack at? I've never noticed or really checked honestly

HonestJhon
03-01-2011, 09:53 PM
My 85s cross memer was cracked, both sides, where the front control arm's inner mount bolts through...roughly around there. Swapped with one from the junkyard.

professor245
03-01-2011, 10:04 PM
where do they normally crack at? I've never noticed or really checked honestly

I'll take pics maybe tomorrow and post them.;-)

Dan
03-01-2011, 11:23 PM
There are threads with pics in here. Mine (86 740 Diesel with a SBC) cracked on each side where the cross member curves in front of the control arm mount. I cut some steel laying around, welded it in the curve and welded the cracks up. Has worked fine so far. Check it every other month or so when I'm under the car.
found a pic https://shell7.tdl.com/~jags/Pages/images/cracks.jpg
good thread
http://forums.turbobricks.com/showthread.php?t=103221&highlight=740+crossmember

HonestJhon
03-01-2011, 11:38 PM
Yeah...I was thinking wrong...that's where mine was cracked on the 85.

WindowsBreakerG4
03-02-2011, 01:38 PM
http://hphotos-sjc1.fbcdn.net/hs311.snc3/28188_730644994475_6415550_41575948_5422593_n.jpg

My 85's was cracked like this on both sides, I put a 93 cross member in

745 TurboGreasel
03-02-2011, 02:48 PM
Mine was about as bad as it can get and still drive;
http://www.brickboard.com/RWD/index.htm?id=957777