do i need a transmission crossmember? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

GreenMystChevy · 05-31-2002, 01:47 PM

Okay, I feel like a moron on this one but it happens. I was driving ht etruck the other day and when I gave it some gas at a stop light, something "broke" and it pops and shudders and whatnot. It's not drivable and I think it is the tranny. There is this knocking noise coming from the inspection plate area of my 3 speed. I wanna say that the throwout bearing went bad, I broke a piece off of the clutch, something. I really have no idea.

Now the question that I posted about, I bought my truck fairly recently and I look under there and there is nothing holding up the back of the tranny? It is just a little guy and it looks like there hasn't been a crossmember for a long time by looking at all of the crap that has built up. Do you think this is what caused whatever happened?

I'll be taking the tranny out this weekend to see what happened. No I just need to find a trailer in the Seattle area. Thanks guys.

speeddemon · 05-31-2002, 01:54 PM

Straight drive trucks did not come with a rear trans crossmember just the one on the back of the motor at the bellhousing. When I first got my truck I thought that was pretty strange myself. If you have to take the bell housing off make sure you have the engine suported or it will tilt backwards on you. good luck

bigjimzlll · 05-31-2002, 01:54 PM

i believe your ok...my truck didnt have one..there is one on the bell housing that is used as the tranny xmember...mine was a four speed though...im sure someone will chime in with the gospel on this

71Chev · 05-31-2002, 02:22 PM

Only 2 wheel drive, Auto trans trucks have the rear trans crossmembers.

GreenMystChevy · 05-31-2002, 03:27 PM

ok, now that we got the crossmember part squared away. What do you guys think I might find when I get this thing off of here? Does any of this sound familiar because it does not to me? Thanks for all your help.

slam33 · 05-31-2002, 08:36 PM

If all the linkage is still hooked up, ya look it over carfully. Mine broke at the Z bar and the TO bearing dropped just enough to sound like I broke something. Then it could be the bearing or the bearing arm.

05-31-2002, 01:47 PM	#1
GreenMystChevy Registered User Join Date: Jan 2002 Location: Woodinville, WA Posts: 513	do i need a transmission crossmember? Okay, I feel like a moron on this one but it happens. I was driving ht etruck the other day and when I gave it some gas at a stop light, something "broke" and it pops and shudders and whatnot. It's not drivable and I think it is the tranny. There is this knocking noise coming from the inspection plate area of my 3 speed. I wanna say that the throwout bearing went bad, I broke a piece off of the clutch, something. I really have no idea. Now the question that I posted about, I bought my truck fairly recently and I look under there and there is nothing holding up the back of the tranny? It is just a little guy and it looks like there hasn't been a crossmember for a long time by looking at all of the crap that has built up. Do you think this is what caused whatever happened? I'll be taking the tranny out this weekend to see what happened. No I just need to find a trailer in the Seattle area. Thanks guys. __________________ Jeremy '71 C-10 '72 GMC K2500 '72 Nova (Dad's) '70 Chevelle SS '55 Sedan Delivery Attempting to build up this here 4x4...make her real tall and purty...well, maybe just tall

05-31-2002, 01:54 PM	#2
speeddemon Registered User Join Date: May 2002 Location: lexington,South Carolina Posts: 158	Straight drive trucks did not come with a rear trans crossmember just the one on the back of the motor at the bellhousing. When I first got my truck I thought that was pretty strange myself. If you have to take the bell housing off make sure you have the engine suported or it will tilt backwards on you. good luck __________________ 69-C10 LWB 71- fleetside shortbed It's a shame stupidity isn't painful Never play leapfrog with a unicorn

05-31-2002, 01:54 PM	#3
bigjimzlll Senior Member Join Date: Dec 2001 Location: Redding,CA...USA Posts: 4,736	i believe your ok...my truck didnt have one..there is one on the bell housing that is used as the tranny xmember...mine was a four speed though...im sure someone will chime in with the gospel on this __________________ It's called "drag racing" if they called it "tic..tic..WHAM!..BANG! F*&K!!!", they'd have to keep the magazines under the counter with the other men's publications click the clicky to join the site.... http://67-72chevytrucks.com/vboard/payments.php 67 lwb..first hotrod in 25 years..540 best ET is 9.45 @ 141.44 Anderson,CA

05-31-2002, 02:22 PM	#4
71Chev Senior Member Join Date: Dec 2000 Location: Indiana Posts: 3,074	Only 2 wheel drive, Auto trans trucks have the rear trans crossmembers. __________________ 71 Chevy CST Long Fleet 350/350/3.07 leaf rear.

05-31-2002, 03:27 PM	#5
GreenMystChevy Registered User Join Date: Jan 2002 Location: Woodinville, WA Posts: 513	ok, now that we got the crossmember part squared away. What do you guys think I might find when I get this thing off of here? Does any of this sound familiar because it does not to me? Thanks for all your help. __________________ Jeremy '71 C-10 '72 GMC K2500 '72 Nova (Dad's) '70 Chevelle SS '55 Sedan Delivery Attempting to build up this here 4x4...make her real tall and purty...well, maybe just tall

05-31-2002, 08:36 PM	#6
slam33 Registered User Join Date: Aug 2001 Location: Long Beach, Ca Posts: 1,432	If all the linkage is still hooked up, ya look it over carfully. Mine broke at the Z bar and the TO bearing dropped just enough to sound like I broke something. Then it could be the bearing or the bearing arm. __________________ 71 LWB 350/350still working on it but it's going tp be sweet. www.geocities.com/stevemau/slam33page.html " TARGET=_blank>http://www.geocities.com/stevemau/slam33page.html?1004806705410 </A>



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