Recent Topics
Cannot unscrew oil filter housing cap - BMW E46
by 97tbird - 07/04/20 07:21 PM
Are u a big fireworks person?
by ZZman - 07/04/20 06:53 PM
Honda Accord MAP sensor question
by Kira - 07/04/20 06:28 PM
Hy-Gard Shelf Life (Opened Bottle)
by viscous - 07/04/20 06:10 PM
Want to bet on my luck? (atf to "save" transmission)
by Snoman002 - 07/04/20 06:10 PM
Too Much Zinc = Corrosion?
by viscous - 07/04/20 06:00 PM
New vehicles with a 4 speed transmission?
by MrHorspwer - 07/04/20 04:57 PM
Inability to Choose
by Gene K - 07/04/20 01:53 PM
65 200 6 mustang running kinda hot
by old1 - 07/04/20 01:30 PM
Neo-protec GT em
by dervdave - 07/04/20 01:19 PM
Mannol 9929 Ester additive
by dervdave - 07/04/20 01:14 PM
2015 Corolla with 7k miles has “soft brakes”
by NHBFAN - 07/04/20 12:30 PM
Put Bilsteins on the Silverado
by bdcardinal - 07/04/20 12:19 PM
Hour meter - not moving?
by Serge - 07/04/20 11:52 AM
Was in a Parade today!
by sasilverbullet - 07/04/20 11:40 AM
Amsoil bypass kit ford 6.7 (BMK33)
by willypete - 07/04/20 11:39 AM
Should I buy a "B" Temperature tire for 2016 Pilot?
by oily boyd - 07/04/20 11:15 AM
Newest Members
paolo9fla, SunnyB, Mullady76, Axia2, Johan1
71847 Registered Users
Who's Online Now
84 registered members (4WD, 77GrandPrix, 55hambone, 97tbird, 555, 928, 11 invisible), 1,488 guests, and 27 spiders.
Key: Admin, Global Mod, Mod
Forum Statistics
Forums67
Topics307,432
Posts5,310,893
Members71,847
Most Online4,538
Jan 20th, 2020
Donate to BITOG
Print Thread
Hop To
Page 1 of 2 1 2
Toyota Transmission pan bolts #5456455 06/17/20 10:32 PM
Joined: Jun 2013
Posts: 687
F
ford46guy Offline OP
OP Offline
F
Joined: Jun 2013
Posts: 687
I read that Toyota Trans bolts (6 Speed A750F Tundra/Lexus Sedans/etc) can break the pan bolts by just removing them. They are M6 bolts. Some of the bolts seem exposed to the elements, and some break in blind holes.

I bought a filter and now worried to install it. Lexus said it is very rare, but not impossible.

I wonder how common this is or it is just a few isolated cases.


95 Tbird V8 240K PP SYNTH ULTRA 5W30
98 MGM 160K M1 HM 5W20
96 Explorer EB V6 159K PP SYNTH HM 5W30
95 Conti 155K MC 5W20
11 GS350 90K PP HM 5W30
Re: Toyota Transmission pan bolts [Re: ford46guy] #5456466 06/17/20 10:49 PM
Joined: Jun 2012
Posts: 2,604
O
oldhp Offline
Offline
O
Joined: Jun 2012
Posts: 2,604
I don't know of any trans pan bolts that are not exposed to the elements. Clean the bolt heads good, squirt some penetrating oil on them and remember.......Lefty Loosey-------Righty Tighty. Just snug them back up and check them after a week or so. You should be good to go.


"None of us are getting out here alive...drink that beer...eat that pizza...drive that Hot Rod"
"When others cut you down, remember where they came from."
"I don't run...........I just quietly wait"
Re: Toyota Transmission pan bolts [Re: ford46guy] #5456471 06/17/20 11:06 PM
Joined: Jun 2003
Posts: 21,053
C
Chris142 Offline
Offline
C
Joined: Jun 2003
Posts: 21,053
I have never had a problem.


02 Wrangler Napa high milage 10w40
87 F250 Valvoline 15w40
07 fjcruiser Car lube plus 10w30
Z400 castrol T 10w40
Can am Maveric edge 5w40
57 case tractor Chevron sae30
Re: Toyota Transmission pan bolts [Re: ford46guy] #5456490 06/18/20 12:09 AM
Joined: Jul 2012
Posts: 3,111
J
john_pifer Offline
Offline
J
Joined: Jul 2012
Posts: 3,111
No problem with the A750E on my Tacoma.

Had to replace pan when I stripped the drain bolt hole, even when using a torque wrench.


07 Tacoma V6 - M1 EP 5W-30, Fram Ultra, 10K OCIs, 228K
18 Civic HB 1.5T 6MT (Wife's) - PPPP 10W-30, OEM filter
07 Yamaha R1 - Rotella T6 5W-40, Bosch 3300
07 Yamaha YZ-250, Klotz, Rotella

Re: Toyota Transmission pan bolts [Re: ford46guy] #5456519 06/18/20 02:24 AM
Joined: Dec 2017
Posts: 6,644
S
Snagglefoot Offline
Offline
S
Joined: Dec 2017
Posts: 6,644
Albany New York vs Apple Valley, California. Hmmm, slight difference in corrosion conditions. I would spray the bolts with liquid wrench or your favourite penetrating oil the day before. Make sure the heads are clean. I use a 3/8 “ ratchet, not a 1/4 inch ratchet. Not sure about a Toyota but on a Ford it makes a sudden snap noise as it releases. Totally remove the first one to make sure it didn’t break. Carry on. For make up torque make sure you know the specified torque. It will be in inch-lbs or n-m, not foot lbs. Make sure you have a small torque wrench in inch-lbs. If the bolts have crud on them, run them through a die. As mentioned, lefty loosey. It’s not the end of the world if a few break. Pick up an easy-out kit. Good luck. smile

Last edited by Snagglefoot; 06/18/20 02:27 AM.

If you want the job done right......do it yourself.
Re: Toyota Transmission pan bolts [Re: ford46guy] #5456526 06/18/20 03:47 AM
Joined: Jan 2011
Posts: 4,123
L
Lubener Offline
Offline
L
Joined: Jan 2011
Posts: 4,123
Originally Posted by ford46guy
I read that Toyota Trans bolts (6 Speed A750F Tundra/Lexus Sedans/etc) can break the pan bolts by just removing them. They are M6 bolts. Some of the bolts seem exposed to the elements, and some break in blind holes.

I bought a filter and now worried to install it. Lexus said it is very rare, but not impossible.

I wonder how common this is or it is just a few isolated cases.

Bolt breakage occurs with any brand automobile, especially the bolts which have holes open in the case opposite the bolt heads. For stuck bolts, I place the socket on the bolt head and strike the socket with a hammer. If the bolt threads are open on the other end as I mentioned, squirt some PB Blaster in the case hole and allow to soak.


The "thinking" man's friend.
Re: Toyota Transmission pan bolts [Re: ford46guy] #5456535 06/18/20 04:05 AM
Joined: Aug 2009
Posts: 857
N
Nayov Offline
Offline
N
Joined: Aug 2009
Posts: 857
They were on super duper tight on my Lexus and amazingly they they didn't break. The proper way is to heat them first to soften the Loctite.

Re: Toyota Transmission pan bolts [Re: ford46guy] #5456539 06/18/20 04:38 AM
Joined: Sep 2017
Posts: 391
B
BlakeB Offline
Offline
B
Joined: Sep 2017
Posts: 391
[Linked Image]

Re: Toyota Transmission pan bolts [Re: ford46guy] #5456570 06/18/20 06:12 AM
Joined: May 2005
Posts: 12,772
C
Char Baby Offline
Offline
C
Joined: May 2005
Posts: 12,772
I haven't had any issues even with 15 year old Toyota/Lexus ATF pan bolts here in the salt belt of Western New York State along the 2 Great Lakes(Erie/Ontario).


Retired 6 yrs now & lovin' it
-----------------------------------

'80 Firebird FORMULA V8/4bbl-purchased "NEW"
'15 Nissan Altima 2.5 SV
'15 Honda Civic 1.8 LX
Re: Toyota Transmission pan bolts [Re: ford46guy] #5456575 06/18/20 06:17 AM
Joined: Sep 2007
Posts: 920
Driz Offline
Offline
Joined: Sep 2007
Posts: 920
I never in all the years here in the salt mine had one snap . I wouldn’t worry about it. Just start with a couple of the easy to get at straight Comfortably first. If they are fighting or coming off with a big pop they might have locktite on them. Heat with a propane torch for +- 10 seconds and they should come out easily. The hardest part is keeping the mess to a minimum😉
As got the bolts themselves rotting away.🙄. By that time your truck will already be Forks and spoons long ago. They all use a pretty crappy grade of bolt in all but a few critical places, ( all manufacturers) I call them. “Candy cane”. They are still good enough though. I’ve never seen a pan bolt round the head off But plenty of other under the car Bolts sure do. The best solution I’ve found Is using only 6 point sockets to break things loose.
I’m a big drill driver fan myself using a M12 Milwaukee for most bolts if I can get at them. Use carefully if at all, better yet don’t for things like tranny pan and plastic shield bolts. Their snappiness can wreck things or overtighten and snap those candy cane bolts off before you even notice.
That old tranny oil mixed with Acetone 50/50 makes the best penetrating oil I’ve ever used And it’s almost free I’ve never needed it on tranny pan bolts though........

Last edited by Driz; 06/18/20 06:34 AM.
Re: Toyota Transmission pan bolts [Re: ford46guy] #5456718 06/18/20 09:15 AM
Joined: Jul 2016
Posts: 2,016
F
FlyNavyP3 Offline
Offline
F
Joined: Jul 2016
Posts: 2,016
I think the Tundra 6 SP is the one with the real issues, not the A750. The tundra pan has spacers with metal sleeves that corrode to the bolt and break off. I've never had one apart, but I've heard from friends in salt climates that it's an all day affair to get a tundra pan off.


Last edited by FlyNavyP3; 06/18/20 09:16 AM.

Luke
P-3C and P-8A Maritime Weapons and Tactics Instructor, Instructor Tactical Coordinator and Mission Commander
Re: Toyota Transmission pan bolts [Re: FlyNavyP3] #5456946 06/18/20 12:47 PM
Joined: Jun 2013
Posts: 687
F
ford46guy Offline OP
OP Offline
F
Joined: Jun 2013
Posts: 687
[quote=FlyNavyP3]I think the Tundra 6 SP is the one with the real issues, not the A750. The tundra pan has spacers with metal sleeves that corrode to the bolt and break off. I've never had one apart, but I've heard from friends in salt climates that it's an all day affair to get a tundra pan off.

Yeah, the replacement gasket I got is all cork rubber.
Seems the parts interchange with the Tundra.

Newer models have a wire mesh screen filter, older have felt.


95 Tbird V8 240K PP SYNTH ULTRA 5W30
98 MGM 160K M1 HM 5W20
96 Explorer EB V6 159K PP SYNTH HM 5W30
95 Conti 155K MC 5W20
11 GS350 90K PP HM 5W30
Re: Toyota Transmission pan bolts [Re: ford46guy] #5457472 06/19/20 07:08 AM
Joined: Jun 2013
Posts: 687
F
ford46guy Offline OP
OP Offline
F
Joined: Jun 2013
Posts: 687
Also these are A760H transmissions. This family was used in the Tundra after 2010, so they don't have that gasket with the washers.
There is an E/F/H E is RWD and is used in Toyota Trucks AND RWD Lexus Sedans. F is 4x4 with a transfercase (for trucks), H is Toyota i-Four AWD (30/70 -50/50 planetary T/C with auto lockup) for Lexus Cars (maybe some Toyota SUVS)

My filter and gasket interchanges with newer Toyota Trucks.

I did it last night. The bolt ends are exposed to the elements on the sides of the trans. Problem was they were rusted to the pan flange. I was scared to twist too much with a ratchet so I let the Bosch impact run at 1/4 power for a 30 sec. Sprayed with atf/acetone and they broke free. Some bolts were a bit over finger tight, which is the torque spec and came right out. Probably a good idea to replace the screws, they may be coated, maybe the next oil change. The drain plug and overfilll were quite corroded, but the powercoated pan looked new. I had new washers for the drain.

In the worst case I figured you could use a nut to hold a broken bolt or two, until you can helicoil.

I did read horror stories on the web but it seems some of those trans (like others said) have a gasket with metal spacers. That would certainly break bolts with blind holes. I guess they moved away from that. I guess the idea with that gasket is not to overtighten which creates another problem.
I paid $62 wholesale price for the gasket and filter. I don't even want to think what the dealer would charge :lol:. I know they quoted me 600 out the door with tax to do both diffs when I had a recall. They said its due for service.

Last edited by ford46guy; 06/19/20 07:17 AM.

95 Tbird V8 240K PP SYNTH ULTRA 5W30
98 MGM 160K M1 HM 5W20
96 Explorer EB V6 159K PP SYNTH HM 5W30
95 Conti 155K MC 5W20
11 GS350 90K PP HM 5W30
Re: Toyota Transmission pan bolts [Re: ford46guy] #5457984 06/19/20 07:12 PM
Joined: Feb 2007
Posts: 4,251
M
meep Offline
Offline
M
Joined: Feb 2007
Posts: 4,251
How’d the insides look? Any debris? We have a new to us GS 350 with 72k miles on it. Considering how solid our 5spd AT tundra was, I was just going to drain/fill with amsoil a couple of times and call it done. With the tundra I installed a an external spin-on and the fluid remained cherry red, with tow duty for the rest of its time with us. We’ve got good luck with our Aisin transmissions.

M


2018 F150
2015 crv (wifey!)
Re: Toyota Transmission pan bolts [Re: meep] #5457989 06/19/20 07:16 PM
Joined: Jul 2012
Posts: 3,111
J
john_pifer Offline
Offline
J
Joined: Jul 2012
Posts: 3,111
Originally Posted by meep
How’d the insides look? Any debris? We have a new to us GS 350 with 72k miles on it. Considering how solid our 5spd AT tundra was, I was just going to drain/fill with amsoil a couple of times and call it done. With the tundra I installed a an external spin-on and the fluid remained cherry red, with tow duty for the rest of its time with us. We’ve got good luck with our Aisin transmissions.

M


229K now on the A750E in my 07 Tacoma. Still rock-solid also. Fluid swap @ 100K & 200K. Will do it again @ 300K.


07 Tacoma V6 - M1 EP 5W-30, Fram Ultra, 10K OCIs, 228K
18 Civic HB 1.5T 6MT (Wife's) - PPPP 10W-30, OEM filter
07 Yamaha R1 - Rotella T6 5W-40, Bosch 3300
07 Yamaha YZ-250, Klotz, Rotella

Page 1 of 2 1 2
Previous Thread
Index
Next Thread

BOB IS THE OIL GUY® Powered by UBB.threads™