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8 members (GA Boy, 2-Ton, Gray_Ghost, Nick in Manitou, GMCJammer51, Joe H, Andrew_Julio, Jay R),
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Global Mod,
Mod | | | Forums66 Topics128,169 Posts1,057,033 Members48,458 | | Most Online14,466 Apr 26th, 2026 | | AD Chevy Trucks Over 6,000 pictures Brad Allen has an awesome collection of Chevrolet factory pictures that he has set up from film strips. Check them out!
Lots of work on Brad's part ... pure enjoyment (and references) for you!
| | THANKS!
For helping keep this great
old truck web site
on the Internet for over 30 years! and not clogged down with Ads! Again, thanks! | | | | Joined: Dec 2010 Posts: 21 New Guy | | New Guy Joined: Dec 2010 Posts: 21 | Due to a bad back, I am being forced to remove the standard transmission crossmember on my 67 C30. Looking at a C50 I have, it has a removable standard tranmission crossmember. I realize that the transmission crossmember is the primary securing point on the 55 thru 72 GM trucks vs the engine mount from 73 up. If anyone has pics of a mod they made to make the trans mount removable would you please post some pics. | | | | | Joined: Dec 2010 Posts: 21 New Guy | | New Guy Joined: Dec 2010 Posts: 21 | I may have to go that route, but was hoping to find where someone had modified the existing crossmember. If not, I will and post my pics. I've got the game plan but haven't got to the point of trying it. (By the way, not that I have a need for it, but I have a roadranger ten speed out of a 78 gmc Brigadier. Does this tranny have the overdrive also?(I was under the impression that only the 13 speeds had the OD.)) | | | | | Joined: Jun 2011 Posts: 5,096 Crusing in the Passing Lane | | Crusing in the Passing Lane Joined: Jun 2011 Posts: 5,096 | Most RR have Direct and OD ratios, tag on bottom should say RT- or RTO-, or turn input shaft and count output, direct should be far right, back, if OD, OD far right, foreward.
'37 GMC T-18 w/ DD 4-53T, RTO-610, 6231 aux., '95 GMC running gear, full disc brakes, power steering, 22.5 wheels and tires. '47 GMC 1 ton w/ 302, NP-540, 4wd, full width Blazer front axle. '54 GMC 630 w/ 503 gasser, 5 speed, ex fire truck, shortened WB 4', install 8' bed. '55 GMC 370 w/270, 420 4 speed, grain, dump bed truck from ND. Works OK.
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