transmission crossmember? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

69GMC910 · 09-25-2011, 06:01 PM

Does anybody make an aftermarket one for a 81-87 application?

walkerb · 09-26-2011, 11:19 AM

Yours rotted out?

I have seen some aftermarket crossmembers on websites that sell suspension parts. Cant remember where. I'll look

masterlock · 09-26-2011, 11:47 AM

http://*************/crossmembers/63-...on-crossmember

69GMC910 · 09-26-2011, 02:13 PM

Not rotted out, but a pain in the butt for doing 3" exhaust... The one above looks like it will solve my problem. Thanks for the link!
Posted via Mobile Device

baclay9 · 09-26-2011, 03:28 PM

I have that one and there is plenty of exhaust clearance above it.

By claypool782 at 2011-06-06

By claypool782 at 2011-09-01

SCOTI · 09-26-2011, 04:03 PM

I like the ones built by Early Classic Enterprises & Perf Online because they capture both the top & bottom of the frame rail like a factory unit does to limit frame flex. The universal tubular units will support the trans fine, but they don't help strengthen the frame....

http://www.earlyclassic.com/catalog.aspx
http://www.performanceonline.com/196...MEMBER-TCM6372

J Knight · 09-26-2011, 05:39 PM

Factory 73-76 crossmembers dont dip low on the drivers side, they are semetrical and a mirror image of the right side of your current cross member.

Pyrotechnic · 09-26-2011, 08:12 PM

Quote:

Originally Posted by J Knight

Factory 73-76 crossmembers dont dip low on the drivers side, they are semetrical and a mirror image of the right side of your current cross member.

They still had them beyond that time on anything that didn't have to have a catalytic converter on it, which is heavy duty half tons and up. I'm not sure when or if the emissions laws started to tighten up but I know trucks with higher GVWR's didn't need them.

J Knight · 09-26-2011, 08:19 PM

Quote:

Originally Posted by Pyrotechnic

They still had them beyond that time on anything that didn't have to have a catalytic converter on it, which is heavy duty half tons and up. I'm not sure when or if the emissions laws started to tighten up but I know trucks with higher GVWR's didn't need them.

Thats good to know, I already have a 74 exhaust friendly crossmember soon to go in my 82.

81c10steps · 09-26-2011, 06:02 PM

Does anyone make one for an 81-87 manual trans? I'm having the same problem you are and can not fit the exhaust I have.

C15_Sierra · 09-27-2011, 03:59 PM

I'm on the hunt for a new crossmember for my 5.3/4L60E swap, and I like the Early Classic/Perf. Online setup with the frame bracket setup, but it says they're for 67-72's - will it still fit on 73-87?

I'd re-use my crossmember, but it doesn't have the dual frame support brackets - it only has the brackets on the right and then it slings under the frame and bolts up on the outside of the frame rails - probably because it was an '80 emissions-equipped 1/2 ton

SCOTI · 09-27-2011, 04:51 PM

Quote:

Originally Posted by C15_Sierra

I'm on the hunt for a new crossmember for my 5.3/4L60E swap, and I like the Early Classic/Perf. Online setup with the frame bracket setup, but it says they're for 67-72's - will it still fit on 73-87?

I'd re-use my crossmember, but it doesn't have the dual frame support brackets - it only has the brackets on the right and then it slings under the frame and bolts up on the outside of the frame rails - probably because it was an '80 emissions-equipped 1/2 ton

Yes, they can work on 73-87's (73-91 burbs, blazers, & CC's too). They might need the holes in the flanges enlarged or possibly re-drilled & a spacer for the trans mount depending on the placement & type of drivetrain.

I used one of these for my CC dually w/a 454/th400 combo after slightly modifying it for the taller rails & making a new mounting pad.

Yupiamlo · 09-27-2011, 07:52 PM

The Thorbecke Bro's one is awesome, I have one too

truckzilla · 01-18-2012, 07:44 PM

Thanks Scoti, for the recommendation and link for a crossmember you gave back in September. I just ordered one.

maxxxy · 01-29-2012, 05:00 PM

Why do you think the ECE crossmember costs $20 more than the performance online crossmember?
Posted via Mobile Device

gchemist · 01-29-2012, 08:53 PM

A member on this board made this one for me.

maxxxy · 01-29-2012, 10:28 PM

Does that hang below the frame?
Posted via Mobile Device

gchemist · 01-30-2012, 01:36 AM

Nope.

You can barely see driverside Chevelle header sticking down a bit.

i heart square bodys · 09-14-2014, 01:58 AM

What do you guys think of this unit that i have fab'd up , fully boxed the frame woth some channel i had made at a local welding shop , i did so because i found it will make for easyer removal later on. Hope ot works !

SCOTI · 09-14-2014, 02:52 AM

Looks good to go.

09-25-2011, 06:01 PM	#1
69GMC910 MOTORHEAD! Join Date: May 2000 Location: Devon AB, Canada Posts: 849	transmission crossmember? Does anybody make an aftermarket one for a 81-87 application? __________________ 82 GMC High Sierra VortecPro 496 12 Bolt, 3.42's AFR 265 Holley 850 Performer RPM Air Gap Hooker 2455's TCI Turbo 400 Super Street Fighter TRRC 12 Bolt Eaton Posi Mark Williams Axles Cal-Tracs Hoosier 30x10.5 Radial Slick Full weight long box pickup Current best- 11.33@117mph

09-26-2011, 11:19 AM	#2
walkerb Registered User Join Date: May 2010 Location: Rochester NY Posts: 831	Re: transmission crossmember? Yours rotted out? I have seen some aftermarket crossmembers on websites that sell suspension parts. Cant remember where. I'll look __________________ 1973 k20 Suburban 350 1974 Custom stepside c-10 250 1975 Chevy stepside 454 1986 K30 Crewcab SRW 350 R.I.P- glimmertwin01- board member and good friend, you will be missed

09-26-2011, 11:47 AM	#3
masterlock Registered User Join Date: Jul 2010 Location: San Diego, CA Posts: 281	Re: transmission crossmember? http://*************/crossmembers/63-...on-crossmember Attached Images __________________ 77 Stepside http://67-72chevytrucks.com/vboard/s...d.php?t=422253

09-26-2011, 02:13 PM	#4
69GMC910 MOTORHEAD! Join Date: May 2000 Location: Devon AB, Canada Posts: 849	Re: transmission crossmember? Not rotted out, but a pain in the butt for doing 3" exhaust... The one above looks like it will solve my problem. Thanks for the link! Posted via Mobile Device __________________ 82 GMC High Sierra VortecPro 496 12 Bolt, 3.42's AFR 265 Holley 850 Performer RPM Air Gap Hooker 2455's TCI Turbo 400 Super Street Fighter TRRC 12 Bolt Eaton Posi Mark Williams Axles Cal-Tracs Hoosier 30x10.5 Radial Slick Full weight long box pickup Current best- 11.33@117mph

09-26-2011, 03:28 PM	#5
baclay9 Registered User Join Date: Apr 2010 Location: Newcastle, OK Posts: 1,344	Re: transmission crossmember? I have that one and there is plenty of exhaust clearance above it. By claypool782 at 2011-06-06 By claypool782 at 2011-09-01

09-26-2011, 04:03 PM	#6
SCOTI Registered User Join Date: Apr 2001 Location: DALLAS,TX Posts: 22,025	Re: transmission crossmember? I like the ones built by Early Classic Enterprises & Perf Online because they capture both the top & bottom of the frame rail like a factory unit does to limit frame flex. The universal tubular units will support the trans fine, but they don't help strengthen the frame.... http://www.earlyclassic.com/catalog.aspx http://www.performanceonline.com/196...MEMBER-TCM6372 Attached Images __________________ 67SWB-B.B.RetroRod 64SWB-Recycle 89CCDually-Driver/Tow Truck 99CCSWB Driver All Fleetsides @rattlecankustoms in IG Building a small, high rpm engine with the perfect bore, stroke and rod ratio is very impressive. It's like a highly skilled Morrocan sword fighter with a Damascus Steel Scimitar..... *Cubic inches is like Indiana Jones with a cheap pistol.*

09-26-2011, 05:39 PM	#7
J Knight Registered User Join Date: Jun 2011 Location: Baytown TX Posts: 2,219	Re: transmission crossmember? Factory 73-76 crossmembers dont dip low on the drivers side, they are semetrical and a mirror image of the right side of your current cross member. __________________ John 82 Chevy Silverado 350ci/TH350

09-26-2011, 06:02 PM	#10
81c10steps Registered User Join Date: Aug 2011 Location: Union Beach, NJ Posts: 3	Re: transmission crossmember? Does anyone make one for an 81-87 manual trans? I'm having the same problem you are and can not fit the exhaust I have.

09-27-2011, 03:59 PM	#11
C15_Sierra Registered User Join Date: Apr 2011 Location: Hartford CT Posts: 223	Re: transmission crossmember? I'm on the hunt for a new crossmember for my 5.3/4L60E swap, and I like the Early Classic/Perf. Online setup with the frame bracket setup, but it says they're for 67-72's - will it still fit on 73-87? I'd re-use my crossmember, but it doesn't have the dual frame support brackets - it only has the brackets on the right and then it slings under the frame and bolts up on the outside of the frame rails - probably because it was an '80 emissions-equipped 1/2 ton __________________ -Steve 1980 GMC C15 Sierra LWB Dark Carmine Red/Carmine Int Was: 250/3spd (1980-88), then a 305/TH350 (1988-2011) Now: 5.3/4L60E, 2.73 12-bolt open rear

09-27-2011, 07:52 PM	#13
Yupiamlo Registered User Join Date: Aug 2010 Location: North Wales, PA Posts: 82	Re: transmission crossmember? The Thorbecke Bro's one is awesome, I have one too

01-18-2012, 07:44 PM	#14
truckzilla Registered User Join Date: May 2011 Location: Fort Worth, Texas Posts: 468	Re: transmission crossmember? Thanks Scoti, for the recommendation and link for a crossmember you gave back in September. I just ordered one.

01-29-2012, 05:00 PM	#15
maxxxy Registered User Join Date: Jul 2010 Location: Norman, Oklahoma Posts: 557	Re: transmission crossmember? Why do you think the ECE crossmember costs $20 more than the performance online crossmember? Posted via Mobile Device __________________ Max Max's bagged 81 81 rcsb bagged, 22s, build in progress 09 ext cab, 24" U2's, DD sub/amp

01-29-2012, 08:53 PM	#16
gchemist BAD BOW-Silverado XST Join Date: May 2000 Location: Senior Member from Austin, TX Posts: 6,431	Re: transmission crossmember? A member on this board made this one for me. __________________ Gerardo a.k.a. Mad Chemist Silverado XST videos

01-29-2012, 10:28 PM	#17
maxxxy Registered User Join Date: Jul 2010 Location: Norman, Oklahoma Posts: 557	Re: transmission crossmember? Does that hang below the frame? Posted via Mobile Device __________________ Max Max's bagged 81 81 rcsb bagged, 22s, build in progress 09 ext cab, 24" U2's, DD sub/amp

01-30-2012, 01:36 AM	#18
gchemist BAD BOW-Silverado XST Join Date: May 2000 Location: Senior Member from Austin, TX Posts: 6,431	Re: transmission crossmember? Nope. You can barely see driverside Chevelle header sticking down a bit. __________________ Gerardo a.k.a. Mad Chemist Silverado XST videos



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09-14-2014, 01:58 AM	#19
i heart square bodys Registered User Join Date: Dec 2011 Location: Blyth, Ontario, Canada Posts: 187	Re: transmission crossmember? What do you guys think of this unit that i have fab'd up , fully boxed the frame woth some channel i had made at a local welding shop , i did so because i found it will make for easyer removal later on. Hope ot works ! Attached Images __________________ 1986 LWB c10 w/327 & vortec heads Last edited by i heart square bodys; 09-14-2014 at 01:59 AM. Reason: spelling

09-14-2014, 02:52 AM	#20
SCOTI Registered User Join Date: Apr 2001 Location: DALLAS,TX Posts: 22,025	Re: transmission crossmember? Looks good to go. __________________ 67SWB-B.B.RetroRod 64SWB-Recycle 89CCDually-Driver/Tow Truck 99CCSWB Driver All Fleetsides @rattlecankustoms in IG Building a small, high rpm engine with the perfect bore, stroke and rod ratio is very impressive. It's like a highly skilled Morrocan sword fighter with a Damascus Steel Scimitar..... *Cubic inches is like Indiana Jones with a cheap pistol.*

Register or Log In To remove these advertisements.