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#1 |
Senior Member
Join Date: May 2004
Location: johnstown, NY
Posts: 2,393
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how many bolts are in your tranny x-member
My truck last had an auto tranny in it but originally had a manual. I noticed the tranny crossmember only has two bolts holding it in ( in opposite corners) I also noticed that only two line up. There are two holes in each side of the frame and two holes in each side of the crossmember, but like I said, only two line up. So is this normal?
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#2 |
Used Register
Join Date: May 2005
Location: Live Oak, TX
Posts: 379
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Re: how many bolts are in your tranny x-member
Mine may be too far off to be relevant, but my Blazer (72 4x4, auto) had only two, opposed bolts and both were loose. The X-member has 4 bolts (2 inline on each side) plus two inline on each side on the diagonal 'outriggers' that bolt to the top of the framerail. That put it at 8 total. I had a hole for each of the eight and replaced the missing bolts - took care of a driveline vibration I was chasing.
Herb |
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#3 |
Dave's not here, man
Join Date: Jun 2004
Location: Winder, Georgia
Posts: 2,000
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Re: how many bolts are in your tranny x-member
Mine had 8 originally. Two upper and two lower each side. I modified it though, so now it only has the lower bolts for each side.
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- 2014 VW Jetta - 2015 VW Jetta - 1966 Ford F-250 |
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#4 |
Senior Member
Join Date: May 2004
Location: johnstown, NY
Posts: 2,393
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Re: how many bolts are in your tranny x-member
are we talking about the same crossmember here? The one that the tranny tailshaft bolts to??
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#5 | |
Used Register
Join Date: May 2005
Location: Live Oak, TX
Posts: 379
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Re: how many bolts are in your tranny x-member
Quote:
Herb here's a link from somewhere online of an aftermarket equivalent. http://www.performanceonline.com/sto...roductid=17818 and here's a stock one (lower right foreground) from some random for-sale ad. http://seattle.craigslist.org/kit/pts/434922988.html |
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#6 |
Senior Member
Join Date: May 2004
Location: johnstown, NY
Posts: 2,393
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Re: how many bolts are in your tranny x-member
ok, mine only mounts to the lower frame rail. What do I have? Is this factory? I'm seeing crossmembers that bolt to the upper and lower rail. confused...
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#7 |
Used Register
Join Date: May 2005
Location: Live Oak, TX
Posts: 379
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Re: how many bolts are in your tranny x-member
On the stock one, the 'wings' that come off and bolt to the top of the rail are removable. Could be that someone was lazy after a trans swap and only bothered with the lower section. Most every car I've had (from GM at least) only had 2 bolts per side and no diagonal brace. All of my GM trucks have had the diagonals.
Herb |
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#8 |
Senior Member
Join Date: May 2004
Location: johnstown, NY
Posts: 2,393
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Re: how many bolts are in your tranny x-member
ok, that makes sense. the thing I don't get though is why the two holes on each side of the frame do not line up with the holes in the crossmember??
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#9 |
Used Register
Join Date: May 2005
Location: Live Oak, TX
Posts: 379
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Re: how many bolts are in your tranny x-member
How far from original is your truck? Motor swaps (6 to 8) tranny swaps (stick to auto or vice-versa) may account for the alignment issues. Do you have two holes on each side that DO line up with the cross-member (if you ignore the trans mount location)? The motor mounts can also be set in 2 different locations, which will push or pull the rest of the drivetrain along...
Herb |
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#11 |
Born Psycho
![]() Join Date: Feb 2001
Location: brentwood,cal,usa
Posts: 4,884
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Re: how many bolts are in your tranny x-member
should have 8 total, 4 per side. 2 on top and 2 on the bottom of each frame rail.
__________________
jerry moss 72 cheyenne super K20- tilt,tach,vacuum,speedwarning,buckets,shoulder belts,am/fm,tow hooks,bumper guards,toolbox,aux. fuel tank,posi front and rear,plus other goodies!!! SOLD 69 suburban K20-tilt,tach,vacuum,speedwarning,buckets,shoulder belts,am/fm,4 inch all spring lift,4 speed, 14 bolt full floater, dana 44 HD,warn winch,posi front and rear,tow hooks,plus other goodies. 73/80 chevy/gmc K20 SB400,turbo 400,205,tilt,a-c,gas hog. 77 K/5 cheyenne blazer-daily driver/beater. SON HAS IT NOW BRENTWOOD,CALIFORNIA |
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#12 |
I am a Referee of life.
Join Date: Jun 2000
Location: Greensboro N.C.
Posts: 13,993
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Re: how many bolts are in your tranny x-member
To further complicate matters the length of the tailshaft on the tranny changes stuff also.Long or short 350 is 6 or 9 in. making a 3 in difference.
__________________
The 47-present Chevrolet and GMC Truck Message Board Network,it's owners,moderators,members,and associates of any type should not be held responsible for my opinion. You can't fix stupid,not even with duct tape. "My appearance is due to the fact that "GOD" does punish you for having too much fun!" Barrett-Jackson has perfected alchemy,they make rust into gold! "You can lead a horse to water but you can't saddle a duck" "Cleverly disguised as a 'Responsible Adult' "Sometimes your Knight in shining armor is just a retard in tinfoil" |
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#13 |
Senior Member
Join Date: May 2004
Location: johnstown, NY
Posts: 2,393
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Re: how many bolts are in your tranny x-member
ok, thanks for the replies. Tomorrow (today i guess) I'm gonna take a pic of it so maybe you guys can tell me exactly what i've got.
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#14 |
Senior Member
Join Date: May 2004
Location: johnstown, NY
Posts: 2,393
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Re: how many bolts are in your tranny x-member
Here are some pics. To summarize only one bolt hole on each side of the crossmember lines up, so I'm trying to figure out if this is not a stock crossmember. I've tried all hole locations and no two holes will line up.
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#15 |
Just like to part out trucks!!
Join Date: Nov 2001
Location: Meriden, Ks-North of Topeka 10 miles
Posts: 27,396
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Re: how many bolts are in your tranny x-member
I got a stocK AT crossmember out, I'll try to get a pic for you today.
__________________
67 Chev swb stepside 4x4 283 4 speed SOLD 72 blazer 4x4 4 speed Cheyenne 72 GMC swb 4x4 fleet 4 speed, original paint 1958 Cameo (one of 1405 built, it was my dads) 2020 chevy Apex 4x4 crew cab 1969 Z28 with the 302 1980 chevy swb 4x4 1964 chevell Malibu SS 1976 K20, sold new originally out of my dads chevy dealership Members that I've met, over 200 probably closer to 300 in the 12 years I've been on this site, everyone I met "It was a pleasure" |
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#16 |
Just like to part out trucks!!
Join Date: Nov 2001
Location: Meriden, Ks-North of Topeka 10 miles
Posts: 27,396
|
Re: how many bolts are in your tranny x-member
Here ya go
__________________
67 Chev swb stepside 4x4 283 4 speed SOLD 72 blazer 4x4 4 speed Cheyenne 72 GMC swb 4x4 fleet 4 speed, original paint 1958 Cameo (one of 1405 built, it was my dads) 2020 chevy Apex 4x4 crew cab 1969 Z28 with the 302 1980 chevy swb 4x4 1964 chevell Malibu SS 1976 K20, sold new originally out of my dads chevy dealership Members that I've met, over 200 probably closer to 300 in the 12 years I've been on this site, everyone I met "It was a pleasure" |
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#17 |
Born Psycho
![]() Join Date: Feb 2001
Location: brentwood,cal,usa
Posts: 4,884
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Re: how many bolts are in your tranny x-member
looks like you have the lower portion only. it should look like the one in the pic Randy posted.
__________________
jerry moss 72 cheyenne super K20- tilt,tach,vacuum,speedwarning,buckets,shoulder belts,am/fm,tow hooks,bumper guards,toolbox,aux. fuel tank,posi front and rear,plus other goodies!!! SOLD 69 suburban K20-tilt,tach,vacuum,speedwarning,buckets,shoulder belts,am/fm,4 inch all spring lift,4 speed, 14 bolt full floater, dana 44 HD,warn winch,posi front and rear,tow hooks,plus other goodies. 73/80 chevy/gmc K20 SB400,turbo 400,205,tilt,a-c,gas hog. 77 K/5 cheyenne blazer-daily driver/beater. SON HAS IT NOW BRENTWOOD,CALIFORNIA |
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