Engine pull to install tranny - The 1947 - Present Chevrolet & GMC Truck Message Board Network

apstguy · 03-02-2004, 03:05 AM

I'm ordering my Bowtie overdrives TH700 tomorrow. I'm planning on installing it spring break. I'll plan to have it out of comission for a week at my grandpa's shop - it will sit next to a 37 Buick Special & a 58 Chevy Pickup. I take it the easist way to swap the tranny is to take the hood and core support off and pull the engine & tranny through the front of the truck. We have an engine cherry picker. What do I rest the thing on while hooking up the tranny? Should I drain the tranny & the oil before lifting the engine out? Do I install the torque converter on the tranny, then the flexplate, then the engine? Tip on installing the torque converter? I don't want to go in this overwhelmed & clueless.

All of what I'll be installing: TH700 tranny - new tranny lines - new bolts all around - new torque converter - new flexplate - new tranny cooler & lines - new u-joints - rebuilt electronic carb - new starter. Enough to do in a week?

MylilBowTie · 03-02-2004, 05:10 AM

I dont see a need to pull the engine and transmission, unless you wanted to detail the engine bay or clean up the engine.

Nvbowtie · 03-02-2004, 05:25 AM

Yeah unless your detailing the bay, just leave it.

If your set on removing something;

An easier route would be pull entire front clip as a whole,
then you have excellent room to work.

8 or 10 (+/-) bolts to pull the front clip. easier than just the radiator support.

The first time I had front clip off,
the second time with clip on.

Mike76251 · 03-02-2004, 09:35 AM

I put a new tranny in mine without touching the engine (all by myself).
Just make shure you have two good jackstands to hold the front end stable and a floor jack to lift the tranny up.

Slonaker · 03-02-2004, 11:26 AM

No need to pull the engine. One of these makes is pretty easy to do, and they occasionally put them on sale for about $40.

http://www.harborfreight.com/cpi/cta...emnumber=39178

Slonaker

TIMSPEED · 03-02-2004, 02:46 PM

Tyler, all you need is a tranny jack. Although, if you wanna pull the engine, all you gotta do is take off your hood, you can leave the core support on.

Stepsides 4Ever · 03-02-2004, 05:38 PM

Nvbowtie, I want to pull my front clip as an assembly. You mention the 8 or 10 bolts (+/-)...where are they and how do you go about doing this?

Thanks! This is something I have wondered about for awhile now...

Stepsides 4Ever · 03-02-2004, 05:58 PM

The torque converter goes on the tranny input shaft. Slide it on as far as you can (you can bolt a strap to one of the transmission bellhousing bolt holes to keep it from sliding off while you are manuevering the tranny about).

The flexplate bolts to the crankshaft flange, using the grade 8 bolts and lockwashers. Use a torque wrench and maybe some loctite...you don't want this coming loose! Then, when you go to join the tranny to the engine, bolt up the bellhousing first, then align the flexplate/torque converter bolt holes. Slide the nub on the torque converter into the recess at the back of the crank flange and use the grade 8 bolts and lockwashers to bolt the flexplate to the tranny...again, use the torque wrench and loctite.

Much of the oil in the tranny is in the torque converter...there's an unbelievable amount of oil in there! Of course you should drain the oil in the old tranny to keep from making a mess, but unless you have a drain plug in the torque converter you won't be able to drain it completely. Be careful...it's heavy and will slide off the input shaft when you separate the the engine/tranny.

Your best resource is Bowtie Overdrives...ask them any questions you have before the sale.

Nvbowtie · 03-05-2004, 07:51 AM

Quote:

Originally posted by Stepsides 4Ever
Nvbowtie, I want to pull my front clip as an assembly. You mention the 8 or 10 bolts (+/-)...where are they and how do you go about doing this?

Thanks! This is something I have wondered about for awhile now...

2 large bolts under radiator
6 or 8 attaching back and bottom of fenders to cab

the +/- will be misc bolts such as;
battery cable / ground strap / wire harnesses

lift up over tires and forward, it's off.

77bowtie · 03-06-2004, 07:51 PM

Why pull the engine? I pulled the manual tranny out and installed a TH-400 auto, alone without pulling the engine.

*1FaastC10* · 03-06-2004, 08:05 PM

if you pull the engine or not, here's an excellent tip for installing the trans to it. take a pair of bolts(same thread as the belhousing bolts, 3/8-16 if i remember correctly) about 5" long, and cut the heads off of them, leaving you with a 5" stud. now bevel the edges of the stud a little on the end you just cut the head off of. you can cut a slot in it, for a screwdriver if you like. now thread them into the belhousing bolt holes before attempting to install the trans.once you get it lined up, put the other 4 bolts in, then remove your studs, and install the remaining 2 bolts. makes lining the engine and trans up 100x easier.

77bowtie · 03-07-2004, 11:40 AM

1faastc10 speaks the truth about those bolts.

Newt408 · 03-08-2004, 10:18 PM

I've got a 2004r from BTO. Their instructions are very complete. Follow them to tht T and it'll work out very well. Kind of a pain in the butt doing all their checks but you cannot blame them for not being thorough.

03-02-2004, 03:05 AM	#1
apstguy LED King Join Date: Jan 2003 Location: Sacramento, CA Posts: 2,088	Engine pull to install tranny I'm ordering my Bowtie overdrives TH700 tomorrow. I'm planning on installing it spring break. I'll plan to have it out of comission for a week at my grandpa's shop - it will sit next to a 37 Buick Special & a 58 Chevy Pickup. I take it the easist way to swap the tranny is to take the hood and core support off and pull the engine & tranny through the front of the truck. We have an engine cherry picker. What do I rest the thing on while hooking up the tranny? Should I drain the tranny & the oil before lifting the engine out? Do I install the torque converter on the tranny, then the flexplate, then the engine? Tip on installing the torque converter? I don't want to go in this overwhelmed & clueless. All of what I'll be installing: TH700 tranny - new tranny lines - new bolts all around - new torque converter - new flexplate - new tranny cooler & lines - new u-joints - rebuilt electronic carb - new starter. Enough to do in a week? __________________ Tyler 1985 C10 305 w/ Bowtie OD TH700R4 3.42 LSD 202,000 miles 2006 Ford Focus ZX3 5-speed Stick 2016 Chevy Spark EV Gone: 2002.5 VW GTI 24v VR6 Gone: 2008 VW R32

03-02-2004, 05:10 AM	#2
MylilBowTie Right turn Clyde Join Date: Nov 2002 Location: Cincinnati, Ohio Posts: 2,911	I dont see a need to pull the engine and transmission, unless you wanted to detail the engine bay or clean up the engine. __________________ 1974 C25 LWB: 454 4bbl Carb / TH400 / 3.73 1992 Camaro RS 305 TBI

03-02-2004, 05:25 AM	#3
Nvbowtie Registered User Join Date: Jul 2001 Location: Laughlin, Nv. USA Posts: 700	Yeah unless your detailing the bay, just leave it. If your set on removing something; An easier route would be pull entire front clip as a whole, then you have excellent room to work. 8 or 10 (+/-) bolts to pull the front clip. easier than just the radiator support. The first time I had front clip off, the second time with clip on. __________________ www.unlimited2u.com/chevy Bill 1980 Chevy C-10 Silverado 1988 Chevy Blazer Tahoe Last edited by Nvbowtie; 03-02-2004 at 05:28 AM.

03-02-2004, 11:26 AM	#5
Slonaker Insert Witty Text Here Join Date: Oct 2002 Location: San Antonio, TX Posts: 3,415	No need to pull the engine. One of these makes is pretty easy to do, and they occasionally put them on sale for about $40. http://www.harborfreight.com/cpi/cta...emnumber=39178 Slonaker __________________ '86 Chevy C10 (Sold 04/19/13 ) Stock '01 Silverado

03-02-2004, 02:46 PM	#6
TIMSPEED Join Date: Jan 2003 Location: Modesto, CA Posts: 1,321	Tyler, all you need is a tranny jack. Although, if you wanna pull the engine, all you gotta do is take off your hood, you can leave the core support on. __________________ I have a few cars... See Them Here

03-02-2004, 09:35 AM	#4
Mike76251 Senior Member Join Date: Mar 2003 Posts: 2,500	I put a new tranny in mine without touching the engine (all by myself). Just make shure you have two good jackstands to hold the front end stable and a floor jack to lift the tranny up.

03-02-2004, 05:38 PM	#7
Stepsides 4Ever Stepsides Are Bedder Join Date: Feb 2004 Location: Norco, CA Posts: 238	Front Clip Removal Nvbowtie, I want to pull my front clip as an assembly. You mention the 8 or 10 bolts (+/-)...where are they and how do you go about doing this? Thanks! This is something I have wondered about for awhile now...

03-02-2004, 05:58 PM	#8
Stepsides 4Ever Stepsides Are Bedder Join Date: Feb 2004 Location: Norco, CA Posts: 238	apstguy... The torque converter goes on the tranny input shaft. Slide it on as far as you can (you can bolt a strap to one of the transmission bellhousing bolt holes to keep it from sliding off while you are manuevering the tranny about). The flexplate bolts to the crankshaft flange, using the grade 8 bolts and lockwashers. Use a torque wrench and maybe some loctite...you don't want this coming loose! Then, when you go to join the tranny to the engine, bolt up the bellhousing first, then align the flexplate/torque converter bolt holes. Slide the nub on the torque converter into the recess at the back of the crank flange and use the grade 8 bolts and lockwashers to bolt the flexplate to the tranny...again, use the torque wrench and loctite. Much of the oil in the tranny is in the torque converter...there's an unbelievable amount of oil in there! Of course you should drain the oil in the old tranny to keep from making a mess, but unless you have a drain plug in the torque converter you won't be able to drain it completely. Be careful...it's heavy and will slide off the input shaft when you separate the the engine/tranny. Your best resource is Bowtie Overdrives...ask them any questions you have before the sale.

03-06-2004, 07:51 PM	#10
77bowtie Registered User Join Date: Apr 2003 Location: New Mexico. Of all places for an Island boy. Posts: 180	Why pull the engine? I pulled the manual tranny out and installed a TH-400 auto, alone without pulling the engine.

03-06-2004, 08:05 PM	#11
1FaastC10 Account Suspended Join Date: Oct 2002 Location: Elkhart, IN Posts: 6,400	if you pull the engine or not, here's an excellent tip for installing the trans to it. take a pair of bolts(same thread as the belhousing bolts, 3/8-16 if i remember correctly) about 5" long, and cut the heads off of them, leaving you with a 5" stud. now bevel the edges of the stud a little on the end you just cut the head off of. you can cut a slot in it, for a screwdriver if you like. now thread them into the belhousing bolt holes before attempting to install the trans.once you get it lined up, put the other 4 bolts in, then remove your studs, and install the remaining 2 bolts. makes lining the engine and trans up 100x easier.

03-07-2004, 11:40 AM	#12
77bowtie Registered User Join Date: Apr 2003 Location: New Mexico. Of all places for an Island boy. Posts: 180	1faastc10 speaks the truth about those bolts.

03-08-2004, 10:18 PM	#13
Newt408 Registered User Join Date: Feb 2004 Location: west texas Posts: 71	I've got a 2004r from BTO. Their instructions are very complete. Follow them to tht T and it'll work out very well. Kind of a pain in the butt doing all their checks but you cannot blame them for not being thorough. __________________ The way of a fool is right in his own eyes:but he that hearkeneth unto council is wise. Proverbs 12:15



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