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#1 |
Registered User
Join Date: Feb 2012
Location: Mission Viejo, CA
Posts: 1,856
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I need to pull my tranny tomorrow. C20 - 2wd. TH400 attached to 350.
Anything thats going to be a problem or I need to look out for? I've R&R a few trannys from blazers but its been 15 years. |
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#2 |
Registered User
Join Date: Dec 2009
Location: Brooklyn N.Y.
Posts: 819
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Re: Removing th400
Shouldn`t be to bad, just a heavy trans. 400s have the least to disconnect and no kick down cables to adjust. Do yourself a favor, drop the pan first and drain fluid, makes it less messy.
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1967 GMC Suburban, Supercharged 6.2 LS with a 6l80e , my 11 second tow vehicle! *pic in my profile* 1987 GMC CrewCab Dually 6.0 LS/6L90e, new tow pig. http://67-72chevytrucks.com/gallery/...=74049&cat=500 |
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#3 |
Registered User
Join Date: Feb 2012
Location: Mission Viejo, CA
Posts: 1,856
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Re: Removing th400
yep and while its out im putting in a drain plug!!
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#4 |
Account Suspended
Join Date: Oct 2012
Location: Salt Lake City, Utah
Posts: 3,331
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Re: Removing th400
Honestly, I think the lack of drain plug, was GM's way of telling you that if you're draining the fluid, chances are it needs a new gasket and filter too, so you may as well drop the entire pan. I get it though. It'd be less messy to have fluid coming from the plug
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#5 | ||
"I ain't nobody, dork."
Join Date: Sep 2007
Location: Whidbey Island, Washington
Posts: 8,940
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Re: Removing th400
I always use a 1 gallon ziploc bag and a couple rubber bands around it on the tailshaft to keep hold of any fluid coming out of the rear of the tailshaft.
Gary
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'cuz chicks dig scars... My 1972 GMC 1500 Super Custom (Creeping Death) "long term" build thread. The Rebuild of Creeping Death after the wreck Quote:
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#6 |
Registered User
Join Date: Jan 2007
Location: Topeka,KS
Posts: 778
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Re: Removing th400
Don't forget to seat your torque converter when installing it. Put on pump shaft rotate and push until it drops in.
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68' C20. 283CI w/55CC 305HO heads, NP435 Close Ratio, Corp. 14 bolt FF 3.21, 75' front end swap (everything but the X-member). |
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#7 |
Registered User
Join Date: Feb 2012
Location: Mission Viejo, CA
Posts: 1,856
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Re: Removing th400
removed everything from the transmission but ran out of time before I got to the bell housing bolts.
While I was under there I found this. Anything look funny? ![]() steps I took: -Remove vacuum modulator hose and retaining bolt. -drain as much fluid as possible out the modulator hole. -Drop the pan and remove the rest of the fluid. I still hate GM for not putting a drain plug on the pan. 1/2" socket -Remove speedometer cable. Just took a light squeeze with pliars to get it loose enough to hand loosen. -Remove torque convertor cover - 7/16" socket - remove torque convertor to flexplate bolts. 9/16" socket. I used my hands and the crank bolt to spin the motor to get to them. I used a screwdriver and a pair of pliars making sure not to touch the teeth on the flexplate to hold it while breaking the TC bolts free with breaker bar. - remove transmission cooler lines. compression fitting. i used a 1/2" flare nut wrench. - remove transmission power plug thingy on the side. just pulls out. - remove ubolts things from differntial yoke to remove rear drive shaft. - remove carrier bearing and remove front shaft. i wanna say that was a 5/8" nut with a 11/16" bolt head on top. dont spend 10 minutes spinning the nut for no reason... - remove shift linkage. I made sure to put all the bolts back where they came from so I dont lose them. except the TC bolts until i get it dropped. Thats as far as I got today. I also built a tray for the jack. ![]() ![]() its not very steady side to side but it will be fine when there are 2 of us guiding it down. Hopefully get it pulled tomorrow. and to the rebuild shop on monday. then back in next weekend. Hopefully by then my new drilled/slotted rotors from scotts hotrod will be here. But it looks like I need to get to the suspension work sooner rather than later. |
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#8 |
Registered User
Join Date: Jan 2007
Location: Topeka,KS
Posts: 778
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Re: Removing th400
Shock absorber attached to your rear crossmember?
Ha Ha, OK I see the picture enlarged.
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68' C20. 283CI w/55CC 305HO heads, NP435 Close Ratio, Corp. 14 bolt FF 3.21, 75' front end swap (everything but the X-member). Last edited by airdale94; 04-28-2013 at 07:51 PM. Reason: add |
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#9 |
Registered User
Join Date: Feb 2012
Location: Mission Viejo, CA
Posts: 1,856
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Re: Removing th400
lol yea the missing nut is what suprised me
![]() Note to self; there's a reason they say to put the front on jack stands. Its really annoying when you drop the tranny and find it wont come out from under the truck... I found they went ahead and skipped one of the top bellhousing bolts. the passenger side of the crossmember didnt have any of the top bolts and the bottoms werent even tight. I had to unhook the ebrake cable to be able to move the cross member back with a BFH. But shes out and in the back of my buddy's truck to go to the tranny guy tomorrow. |
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