Manual trans to Auto Swap-Need some advice - The 1947 - Present Chevrolet & GMC Truck Message Board Network

MyakkaJeff · 07-23-2007, 08:33 PM

Hey Guys, Got my 16 year old son a 68 chevy lwb fleet this summer for his first vehicle. It's a 283 with 3 on the tree. We've been working on it and driving it for practice with the 3-speed. I really think he will get the hang of it but he did take out our gate backing out of the driveway the other day. My question is if we switch to an Automatic trans which would you guys suggest? We have a 68 parts truck with original automatic powerglide. Would it be best to use this steering column and tranny or a TH350 or what? Would it be better to get a tranny from Summit or Jegs and which tranny do you guys suggest. Thanks Guys, Jeff.

PanelDeland · 07-23-2007, 09:04 PM

I wouldn't use the PG because of it being only a 2 speed tranny.I suggest you look at a TH350 or even a 700R4.You will also need to look at rear end gearing.If you have 3:73-1 then the 700R4 may be a good choice.The rear gear for a factory auto would be a 3:07 to 1.I would encourage you to look thru the FAQ's section and learn more about power brake conversion and disc brake conversions.

dan42 · 07-23-2007, 09:06 PM

Excellent advice.

07-23-2007, 08:33 PM	#1
MyakkaJeff Junior Member Join Date: Dec 2006 Location: Florida, Myakka River Posts: 143	Manual trans to Auto Swap-Need some advice Hey Guys, Got my 16 year old son a 68 chevy lwb fleet this summer for his first vehicle. It's a 283 with 3 on the tree. We've been working on it and driving it for practice with the 3-speed. I really think he will get the hang of it but he did take out our gate backing out of the driveway the other day. My question is if we switch to an Automatic trans which would you guys suggest? We have a 68 parts truck with original automatic powerglide. Would it be best to use this steering column and tranny or a TH350 or what? Would it be better to get a tranny from Summit or Jegs and which tranny do you guys suggest. Thanks Guys, Jeff. __________________ '63 C10 lwb flatbed '66 C10 lwb stepside '68 C10 lwb stepside (parts) '68 C10 lwb fleetside (17 yr old son's ongoing project) '03 HUMMER H2 (wife's) '06 3500 flatbed liftgate (My work truck)

07-23-2007, 09:04 PM	#2
PanelDeland I am a Referee of life. Join Date: Jun 2000 Location: Greensboro N.C. Posts: 13,992	Re: Manual trans to Auto Swap-Need some advice I wouldn't use the PG because of it being only a 2 speed tranny.I suggest you look at a TH350 or even a 700R4.You will also need to look at rear end gearing.If you have 3:73-1 then the 700R4 may be a good choice.The rear gear for a factory auto would be a 3:07 to 1.I would encourage you to look thru the FAQ's section and learn more about power brake conversion and disc brake conversions. __________________ The 47-present Chevrolet and GMC Truck Message Board Network,it's owners,moderators,members,and associates of any type should not be held responsible for my opinion. You can't fix stupid,not even with duct tape. "My appearance is due to the fact that "GOD" does punish you for having too much fun!" Barrett-Jackson has perfected alchemy,they make rust into gold! "You can lead a horse to water but you can't saddle a duck" "Cleverly disguised as a 'Responsible Adult' "Sometimes your Knight in shining armor is just a retard in tinfoil"

07-23-2007, 09:06 PM	#3
dan42 Registered User Join Date: Feb 2007 Location: Cali Central Coast Posts: 5,191	Re: Manual trans to Auto Swap-Need some advice Excellent advice. __________________ '67 SWB Fleetside ZZ4/350/Tremec 5-speed/4link/Scott's IFS - and fun as heck! SOLD Click here to support the board Philippians 4: 6-7



Register or Log In To remove these advertisements.

Register or Log In To remove these advertisements.