trans crossmember riveted in? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

Jeffvega · 12-06-2008, 04:03 PM

Hi i'm new to these trucks and I have a 70 gmc lwb and was wanting to change the 3 speed manual colum shift to a th350. I notice the bell housing style crossmember is riveted in. what is the best way to remove it and also where can I find the correct crossmeber for the th350, would it be better just to build a crossmember? Thanks for the input

gringoloco · 12-06-2008, 04:07 PM

Cut/torch the rivets- or I've seen people just cut the crossmember flush with the framerails. You will need to find an auto truck for the crossmember or check out Early Classic for a rectangle tube piece that will bolt in the factory holes.

Welcome and good luck w/ your project.

shaneo2112RUSH · 12-07-2008, 02:47 AM

to me it depends on what tools you have. a drill, hammer, torch, grinderair hammer and such. know many people have done this before but if you have a grinder and room to get to it. you grind an X on the rivet and air hammer the rest off.

12-06-2008, 04:03 PM	#1
Jeffvega Registered User Join Date: Nov 2008 Location: Antioch, ca Posts: 57	trans crossmember riveted in? Hi i'm new to these trucks and I have a 70 gmc lwb and was wanting to change the 3 speed manual colum shift to a th350. I notice the bell housing style crossmember is riveted in. what is the best way to remove it and also where can I find the correct crossmeber for the th350, would it be better just to build a crossmember? Thanks for the input

12-06-2008, 04:07 PM	#2
gringoloco A guy with a truck Join Date: Sep 2005 Location: Germany, for now Posts: 5,920	Re: trans crossmember riveted in? Cut/torch the rivets- or I've seen people just cut the crossmember flush with the framerails. You will need to find an auto truck for the crossmember or check out Early Classic for a rectangle tube piece that will bolt in the factory holes. Welcome and good luck w/ your project. __________________ -Chris Instagram _elgringoloco_ '70 Short-Wide How to: Ruin a perfectly good C10 ‘70 Blazer ConversionHow To: Ruin a Perfectly Good 4wd '72 Highlander How To: Ruin a Perfectly Good K/5 (SOLD) '72 Blazer 2WD How to: Ruin a perfectly good Blazer (SOLD) '05 Yukon Daily Driven (not so stock) Yukon (SOLD) ‘07 Yukon Denali (daily) Members met list: SCOTI, darkhorse970, 67cheby, 67cheby'sGirl, klmore, porterbuilt, n2billet, Fastrucken, classicchev, Col Clank, GSFMECH, HuggerCST, Spray-Bomb, BACKYARD88, 5150, fine69, fatbass, smbrouss70, 65StreetCruiser, GAc10boy

12-07-2008, 02:47 AM	#3
shaneo2112RUSH Junior Member Join Date: Jun 2006 Location: Pueblo,Colo Posts: 424	Re: trans crossmember riveted in? to me it depends on what tools you have. a drill, hammer, torch, grinderair hammer and such. know many people have done this before but if you have a grinder and room to get to it. you grind an X on the rivet and air hammer the rest off. __________________ 1968 LWB C10 "Project LADY EYE SORE" (She is my baby and sent me to the hospital 3 times for eye injuries lol) who said love hurts??

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