Trans and TC reinstall - The 1947 - Present Chevrolet & GMC Truck Message Board Network

67gmcstepside · 12-01-2011, 01:46 PM

Thought I would ask those who have done this before. I had to remove the trans due to 3rd gear syncro being shot. I am ready for the re-install and thought it would be easiest to reinstall the trans with the adapter on it and after getting the cross member mounter add the TC. Seems like to much weight if I try to get the trans lined up with the throw out bearing and clutch assembly with the TC on. Does this logic make sense? Doesnt look like to much trouble getting to the adapter/TC bolts once the adaprt is on the cross member. Any thoughts?

**argonaut** · 12-01-2011, 07:19 PM

That plan sounds reasonable to me if you are doing it from underneath. That way you can put the trans on the jack, mount it all up, then put the transfer case on the jack and get it mounted up. otherwise like you said its a lot of weight and it is off balance from side to side due to the transfer case.

When we did a transmission and transfer case swap on my Dad's 69 we unbolted the bed and cab and slid them back on the frame. Then hoisted one whole assembly out and the other in. it went pretty quickly that way.

67gmcstepside · 12-01-2011, 09:34 PM

yes, it was so much easier when the cab was off, just drop them in. Thank you for the reply!
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rcbildr · 12-02-2011, 01:53 AM

Would it be easier to use an engine hoist with the boom in the cab and lift everyting thru the removable center floor piece? I'm thinking about doing that when I convert my 83 to a manual trans.

**Yukon Jack** · 12-02-2011, 09:51 AM

I've done the install both ways and I think using an engine hoist with the boom through the cab made it a bit easier.

Vintage Windmills · 12-02-2011, 09:53 PM

Anyone drill out the rivets in the crossmember braces so that you can bolt the two upper pieces in, then raise the tcase and tranny bolted to the main piece straight up? I think it would be alot easier since you have to angle the crossmember in since the upper pieces need to go in the channel.

67gmcstepside · 12-04-2011, 08:49 PM

Got the trans installed and as always learned a few tricks. The first is to strap the trans to the trans jack. I used a rachet strap. Once it got close I laid on my back held the frame rails and used the balls of my feet to get to sink in. Then I tried to reinstall the clutch fork. Found out that you can't install it once the trans is in so out and back in it went. Doing it solo was tough and I am glad that's over. Now all I have to do is figure out why I can't get the shift back in. The trans was completely rebuild by a local shop.
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12-01-2011, 01:46 PM	#1
67gmcstepside Registered User Join Date: Jan 2010 Location: jackson Posts: 676	Trans and TC reinstall Thought I would ask those who have done this before. I had to remove the trans due to 3rd gear syncro being shot. I am ready for the re-install and thought it would be easiest to reinstall the trans with the adapter on it and after getting the cross member mounter add the TC. Seems like to much weight if I try to get the trans lined up with the throw out bearing and clutch assembly with the TC on. Does this logic make sense? Doesnt look like to much trouble getting to the adapter/TC bolts once the adaprt is on the cross member. Any thoughts? Last edited by 67gmcstepside; 12-01-2011 at 03:37 PM.

12-01-2011, 07:19 PM	#2
argonaut Senior Member Join Date: Aug 2008 Location: Long Beach, CA Posts: 1,813	Re: Trans and TC reinstall That plan sounds reasonable to me if you are doing it from underneath. That way you can put the trans on the jack, mount it all up, then put the transfer case on the jack and get it mounted up. otherwise like you said its a lot of weight and it is off balance from side to side due to the transfer case. When we did a transmission and transfer case swap on my Dad's 69 we unbolted the bed and cab and slid them back on the frame. Then hoisted one whole assembly out and the other in. it went pretty quickly that way. __________________ Jason M. @argonaut62 1972 K5 Blazer CST, Turquoise 1966 K20 Short Fleet Pickup, Big Ugly 1964 C10 Short Fleet, Gertrude 2001 Porsche 911 Carrera 1996 Ford Bronco XLT 1980 Jeep Wagoneer 2008 Honda CBR1000RR 2005 Honda RC51 1981 Honda CB750C No dis-assemble Johnny Five! No dis-assemble!

12-01-2011, 09:34 PM	#3
67gmcstepside Registered User Join Date: Jan 2010 Location: jackson Posts: 676	Re: Trans and TC reinstall yes, it was so much easier when the cab was off, just drop them in. Thank you for the reply! Posted via Mobile Device

12-02-2011, 01:53 AM	#4
rcbildr Registered User Join Date: Sep 2000 Location: Gold Bar, WA Posts: 1,216	Re: Trans and TC reinstall Would it be easier to use an engine hoist with the boom in the cab and lift everyting thru the removable center floor piece? I'm thinking about doing that when I convert my 83 to a manual trans. __________________ My Projects: 1960 GMC 1/2ton with 305 V6 (daily driver) 1963 Chevy 1/2ton 2wd...converting to 4x4 1967 Suburban 1/2ton 2wd My Girlfriends Projects 1985 Chevy Suburban 3/4ton 4x4 with 6.2L diesel, 4" lift, converted to TH-400, Warn Premium manual hubs, & Wildcat 315/75/R16 tires. (daily driver) 1978 Camaro Type LT with a Marine 350 & vortec heads, Rochester Carb, & roller cam 1978 Camaro Z28

12-02-2011, 09:51 AM	#5
Yukon Jack Post Whore Join Date: Feb 2000 Location: Rose Hill, KS, USA Posts: 12,683	Re: Trans and TC reinstall I've done the install both ways and I think using an engine hoist with the boom through the cab made it a bit easier. __________________ 1970 Blazer with a 400 sbc and 4" lift 1980 Pontiac Trans Am, 455 Oldsmobile 2012 Kawasaki Concours 14

12-02-2011, 09:53 PM	#6
Vintage Windmills Vintage 4x4s Join Date: Sep 2010 Location: Prior Lake, MN Posts: 4,305	Re: Trans and TC reinstall Anyone drill out the rivets in the crossmember braces so that you can bolt the two upper pieces in, then raise the tcase and tranny bolted to the main piece straight up? I think it would be alot easier since you have to angle the crossmember in since the upper pieces need to go in the channel. __________________ 67 GMC K1500 Custom- 305V6 SM420, PTO, Ram Assist, yellow (the outcast) (project period correct upgrades) 67 GMC C2500 351V6 TH400, AC, PS, PB (can't decide what to do with. Update, decided to keep and will restore ) 86 CHV K30 502 th400, apple red NEW 71 CHV K20 350 SM465, ochre (saved work truck) 71 CHV K20 292 SM465, white, tach, PTO, (future project) 72 CHV K20 350 350th, medium blue (project stocker) 01 CHV K2500hd crew, indigo blue ^3 dont run and the others don't see winter either '86 K30 Cummins "Fireside" thread: http://67-72chevytrucks.com/vboard/s...d.php?t=649649 '71 K20 "get driveable" thread: http://67-72chevytrucks.com/vboard/s...d.php?t=590642 '72 K20 Build Thread: http://67-72chevytrucks.com/vboard/s...=493477&page=6

12-04-2011, 08:49 PM	#7
67gmcstepside Registered User Join Date: Jan 2010 Location: jackson Posts: 676	Re: Trans and TC reinstall Got the trans installed and as always learned a few tricks. The first is to strap the trans to the trans jack. I used a rachet strap. Once it got close I laid on my back held the frame rails and used the balls of my feet to get to sink in. Then I tried to reinstall the clutch fork. Found out that you can't install it once the trans is in so out and back in it went. Doing it solo was tough and I am glad that's over. Now all I have to do is figure out why I can't get the shift back in. The trans was completely rebuild by a local shop. Posted via Mobile Device



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