3spd trans to TH350 trans swap?? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

68shortfleet · 11-24-2006, 02:50 AM

Ok, i could not find this in the archives, but i am sure it has been answered before.
I have a 68 swb v8/3spd truck that i want to install the th350 into. I have the entire cab(steering column/linkage), all linkage brackets, and a crossmember for this conversion removed from a 71 c-20 lwb. This project truck did not have any motor or trans installed at purchase, so i have no idea how it came apart. It looks like there is a crossmember(riveted to frame) that must be removed and the new crossmember installed. Is it really that simple or is there another crossmember that goes in where the old one comes out as the auto one is much further back.
Hope this didnt confuse anybody.

Thanks
Jason

krue · 11-24-2006, 03:09 AM

You're right on on the crossmember. You also need to get a radiator with a tranny cooler in it.

68shortfleet · 11-24-2006, 03:31 AM

Thanks KRUE

11-24-2006, 02:50 AM	#1
68shortfleet Registered User Join Date: Oct 2006 Location: Dundee, Oregon Posts: 311	3spd trans to TH350 trans swap?? Ok, i could not find this in the archives, but i am sure it has been answered before. I have a 68 swb v8/3spd truck that i want to install the th350 into. I have the entire cab(steering column/linkage), all linkage brackets, and a crossmember for this conversion removed from a 71 c-20 lwb. This project truck did not have any motor or trans installed at purchase, so i have no idea how it came apart. It looks like there is a crossmember(riveted to frame) that must be removed and the new crossmember installed. Is it really that simple or is there another crossmember that goes in where the old one comes out as the auto one is much further back. Hope this didnt confuse anybody. Thanks Jason

11-24-2006, 03:09 AM	#2
krue Designated A-hole! Join Date: Mar 2003 Location: South Mississippi Posts: 36,448	Re: 3spd trans to TH350 trans swap?? You're right on on the crossmember. You also need to get a radiator with a tranny cooler in it. __________________ "If it ain't broke, fix it 'til it is!" Being stupid ain't illegal. We're Still Debt Free Except for the House!!! www.daveramsey.com 70 GMC SWB Stepside project "Green Booger" soon to be 6.0l/4l80e 93 S-10 "Poppaw's Truck"

11-24-2006, 03:31 AM	#3
68shortfleet Registered User Join Date: Oct 2006 Location: Dundee, Oregon Posts: 311	Re: 3spd trans to TH350 trans swap?? Thanks KRUE

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