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Indexing QT Bellhousing #3224644 04/03/24 07:36 AM 04/03/24 07:36 AM
Joined: Feb 2005 Posts: 1,320 Lees Summit, MO BrianT OP pro stock
BrianT OP pro stock Joined: Feb 2005 Posts: 1,320 Lees Summit, MO	I'm installing a used QT bellhousing on my 70 Duster with a 318. Transmission is an 18 spline A body four speed. The engine is in the car. The instructions I found online recommend indexing the bellhousing to correct any misalignment between the engine and transmission. I understand that this is critical when using a TKX or TKO due to the tapered input shaft bearing. Is this process necessary when using a NP transmission with it's roller bearings? I'm working by myself and it is impossible to rotate the front of the engine and watch the bell from the back. Thanks for any help or guidance! 1970 Duster 340 clone

Re: Indexing QT Bellhousing [Re: BrianT] #3224654 04/03/24 07:48 AM 04/03/24 07:48 AM
Joined: Oct 2005 Posts: 8,869 Ontario, Canada S Stanton Don't question me!
Stanton Don't question me! S Joined: Oct 2005 Posts: 8,869 Ontario, Canada	Yes, it's 100% necessary - with ANY trans. Install the bell and dial indicator setup and start at a specific point - set the indicator at zero then rotate the crank 45* and take a reading. do this for every 45. Do the math and make your adjustments to the bell then do it all over again. You won't be the first person to do this alone !! If you want to cheat, you could get away wiith only checking it every 90.

Re: Indexing QT Bellhousing [Re: BrianT] #3224685 04/03/24 10:11 AM 04/03/24 10:11 AM
Joined: Jan 2003 Posts: 74,992 U.S.S.A. JohnRR I Win
JohnRR I Win Joined: Jan 2003 Posts: 74,992 U.S.S.A.	Yes you have to do it and buy these BEFORE you start . RobbMc dowels . Buy these from Robb Mc , summit sells lakewood branded ones like these and just a pair of those cost a little more than buying all 3 offsets from Robb. The old lakewoods that are marked Mopar/Ford and NOT Mopar , they are .500 which is Ford , Mopars are .496. running up my post count some more .

Re: Indexing QT Bellhousing [Re: BrianT] #3224690 04/03/24 11:01 AM 04/03/24 11:01 AM
Joined: Jan 2003 Posts: 31,018 Oregon A AndyF I Win
AndyF I Win A Joined: Jan 2003 Posts: 31,018 Oregon	Use your phone to take a video of the dial indicator while you turn the engine over. That is what I do.

Re: Indexing QT Bellhousing [Re: JohnRR] #3224895 04/03/24 10:45 PM 04/03/24 10:45 PM
Joined: Jan 2003 Posts: 15,343 Omaha Ne T TJP I Live Here
TJP I Live Here T Joined: Jan 2003 Posts: 15,343 Omaha Ne	Originally Posted by JohnRR Yes you have to do it and buy these BEFORE you start . RobbMc dowels . Buy these from Robb Mc , summit sells lakewood branded ones like these and just a pair of those cost a little more than buying all 3 offsets from Robb. The old lakewoods that are marked Mopar/Ford and NOT Mopar , they are .500 which is Ford , Mopars are .496. I agree with ALL said. if you remove the plugs you might be able to rotate the motor using the pressure plate bolts following the ARC of the FW with a box end wrench. One can also install the starter and use a remote switch www.tandmautomotive-omaha.com

Re: Indexing QT Bellhousing [Re: TJP] #3224931 04/04/24 07:24 AM 04/04/24 07:24 AM
Joined: Feb 2005 Posts: 1,320 Lees Summit, MO BrianT OP pro stock
BrianT OP pro stock Joined: Feb 2005 Posts: 1,320 Lees Summit, MO	Thanks for the replies and advice everyone. I guess I was looking for someone to tell me that it wasn't necessary when I knew in my heart that it was? So far, the plugs are out, the block plate is on as is the flywheel. I will bolt the bellhousing on and get the dial indicator set up. I have a buddy who says he can come by this weekend to help spin the engine while I write down the readings. It seems pretty straight forward from there. I have watched numerous YouTube videos on the subject. Thanks for the heads up about the size of the dowels. I was looking on Summit's page and they list Ford/Mopar as .500", but if you look at the reviews there are comments from the Mopar guys saying that are too tight and needed to be modified. This saved me a HUGE amount of frustration in the near future. I will order the correct dowels from the link provided above. Hopefully, I'll update this thread later in the week with good news. Thanks again! 1970 Duster 340 clone

Re: Indexing QT Bellhousing [Re: BrianT] #3225024 04/04/24 02:04 PM 04/04/24 02:04 PM
Joined: Feb 2011 Posts: 958 MN D Droop69 super stock
Droop69 super stock D Joined: Feb 2011 Posts: 958 MN	Why do you have an 18 spline trans behind a 318? Just curious seems like way overkill appplication.

Re: Indexing QT Bellhousing [Re: Droop69] #3225040 04/04/24 02:46 PM 04/04/24 02:46 PM
Joined: Oct 2005 Posts: 8,869 Ontario, Canada S Stanton Don't question me!
Stanton Don't question me! S Joined: Oct 2005 Posts: 8,869 Ontario, Canada	Quote Why do you have an 18 spline trans behind a 318? Hell, why not ?!?! It's not like they're any heavier or anything !

Re: Indexing QT Bellhousing [Re: Droop69] #3225045 04/04/24 03:19 PM 04/04/24 03:19 PM
Joined: Feb 2005 Posts: 1,320 Lees Summit, MO BrianT OP pro stock
BrianT OP pro stock Joined: Feb 2005 Posts: 1,320 Lees Summit, MO	Originally Posted by Droop69 Why do you have an 18 spline trans behind a 318? Just curious seems like way overkill appplication. I'm having Brian Hafliger at IMM build me a 340 based W2 stroker motor. It should be ready later this summer. 1970 Duster 340 clone

Re: Indexing QT Bellhousing [Re: BrianT] #3225052 04/04/24 03:50 PM 04/04/24 03:50 PM
Joined: Jan 2003 Posts: 18,414 UPPER MICHIGAN, MARQUETTE COUN... N NITROUSN I Live Here
NITROUSN I Live Here N Joined: Jan 2003 Posts: 18,414 UPPER MICHIGAN, MARQUETTE COUN...	Originally Posted by BrianT Thanks for the replies and advice everyone. I guess I was looking for someone to tell me that it wasn't necessary when I knew in my heart that it was? So far, the plugs are out, the block plate is on as is the flywheel. I will bolt the bellhousing on and get the dial indicator set up. I have a buddy who says he can come by this weekend to help spin the engine while I write down the readings. It seems pretty straight forward from there. I have watched numerous YouTube videos on the subject. Thanks for the heads up about the size of the dowels. I was looking on Summit's page and they list Ford/Mopar as .500", but if you look at the reviews there are comments from the Mopar guys saying that are too tight and needed to be modified. This saved me a HUGE amount of frustration in the near future. I will order the correct dowels from the link provided above. Hopefully, I'll update this thread later in the week with good news. Thanks again! Read above JohnRR told you where to get the dowels And they fit.

Re: Indexing QT Bellhousing [Re: NITROUSN] #3225077 04/04/24 05:41 PM 04/04/24 05:41 PM
Joined: Feb 2005 Posts: 1,320 Lees Summit, MO BrianT OP pro stock
BrianT OP pro stock Joined: Feb 2005 Posts: 1,320 Lees Summit, MO	Originally Posted by NITROUSN Read above JohnRR told you where to get the dowels And they fit. I did. That's why I thanked him for the info? 1970 Duster 340 clone

Re: Indexing QT Bellhousing [Re: BrianT] #3225124 04/04/24 10:14 PM 04/04/24 10:14 PM
Joined: Jan 2003 Posts: 15,343 Omaha Ne T TJP I Live Here
TJP I Live Here T Joined: Jan 2003 Posts: 15,343 Omaha Ne	Originally Posted by BrianT Thanks for the replies and advice everyone. I guess I was looking for someone to tell me that it wasn't necessary when I knew in my heart that it was? So far, the plugs are out, the block plate is on as is the flywheel. I will bolt the bellhousing on and get the dial indicator set up. I have a buddy who says he can come by this weekend to help spin the engine while I write down the readings. It seems pretty straight forward from there. I have watched numerous YouTube videos on the subject. Thanks for the heads up about the size of the dowels. I was looking on Summit's page and they list Ford/Mopar as .500", but if you look at the reviews there are comments from the Mopar guys saying that are too tight and needed to be modified. This saved me a HUGE amount of frustration in the near future. I will order the correct dowels from the link provided above. Hopefully, I'll update this thread later in the week with good news. Thanks again! in my experience the QT's are closer to spec than the Lakewood's, normally only requiring a .007 dowel if any www.tandmautomotive-omaha.com

Re: Indexing QT Bellhousing [Re: BrianT] #3225163 04/05/24 07:56 AM 04/05/24 07:56 AM
Joined: Feb 2011 Posts: 958 MN D Droop69 super stock
Droop69 super stock D Joined: Feb 2011 Posts: 958 MN	Originally Posted by BrianT Originally Posted by Droop69 Why do you have an 18 spline trans behind a 318? Just curious seems like way overkill appplication. I'm having Brian Hafliger at IMM build me a 340 based W2 stroker motor. It should be ready later this summer. That makes sense!

Re: Indexing QT Bellhousing [Re: BrianT] #3225168 04/05/24 09:07 AM 04/05/24 09:07 AM
Joined: Jan 2003 Posts: 74,992 U.S.S.A. JohnRR I Win
JohnRR I Win Joined: Jan 2003 Posts: 74,992 U.S.S.A.	Originally Posted by BrianT Originally Posted by NITROUSN Read above JohnRR told you where to get the dowels And they fit. I did. That's why I thanked him for the info? Glad I could help. I think he might have missed that statement , I know sometimes I miss things ... getting old ... running up my post count some more .

Re: Indexing QT Bellhousing [Re: JohnRR] #3225267 04/05/24 05:27 PM 04/05/24 05:27 PM
Joined: Feb 2005 Posts: 1,320 Lees Summit, MO BrianT OP pro stock
BrianT OP pro stock Joined: Feb 2005 Posts: 1,320 Lees Summit, MO	Originally Posted by JohnRR Glad I could help. I think he might have missed that statement , I know sometimes I miss things ... getting old ... Aren't we all. I hope I can get this thing on the road soon and start making more memories. 1970 Duster 340 clone

Re: Indexing QT Bellhousing [Re: BrianT] #3225312 04/05/24 11:06 PM 04/05/24 11:06 PM
Joined: Jan 2003 Posts: 15,343 Omaha Ne T TJP I Live Here
TJP I Live Here T Joined: Jan 2003 Posts: 15,343 Omaha Ne	Originally Posted by BrianT Originally Posted by JohnRR Glad I could help. I think he might have missed that statement , I know sometimes I miss things ... getting old ... Aren't we all. I hope I can get this thing on the road soon and start making more memories. the question of the day is: Will you remember the memories 😂, Or will they be Memorex? ❓❓ This is an Alzheimer's test question 🙄 www.tandmautomotive-omaha.com

Re: Indexing QT Bellhousing [Re: TJP] #3226892 04/13/24 02:47 PM 04/13/24 02:47 PM
Joined: Feb 2005 Posts: 1,320 Lees Summit, MO BrianT OP pro stock
BrianT OP pro stock Joined: Feb 2005 Posts: 1,320 Lees Summit, MO	Success! My buddy came by today and we spent the morning measuring and remeasuring. We found .032 total run out so we divided by two and got .016. I just ordered the .014 offset dowels from RobbMC at the link above. Thanks everyone for their help and input! 1970 Duster 340 clone

Re: Indexing QT Bellhousing [Re: BrianT] #3226950 04/13/24 10:28 PM 04/13/24 10:28 PM
Joined: Jan 2003 Posts: 15,343 Omaha Ne T TJP I Live Here
TJP I Live Here T Joined: Jan 2003 Posts: 15,343 Omaha Ne	www.tandmautomotive-omaha.com

Re: Indexing QT Bellhousing [Re: BrianT] #3226997 04/14/24 11:51 AM 04/14/24 11:51 AM
Joined: Sep 2003 Posts: 19,383 north of coder moparx "Butt Crack Bob"
moparx "Butt Crack Bob" Joined: Sep 2003 Posts: 19,383 north of coder	please keep us updated on what TIR you ended up with, using those dowels.

Re: Indexing QT Bellhousing [Re: BrianT] #3227029 04/14/24 01:20 PM 04/14/24 01:20 PM
Joined: Mar 2007 Posts: 3,277 West Coast, USA jbc426 master
jbc426 master Joined: Mar 2007 Posts: 3,277 West Coast, USA	Did you also verify that the bellhousing's transmission mounting face is square to the back of the block? Mine are usually off a bit from square, and I use hardend prescision washers to adjust that. 1970 Plymouth 'Cuda #'s 440-6(block in storage)currently 493" 6 pack, Shaker, 5 speed Passon, 4.10's 1968 Plymouth Barracuda Convertible 408 Magnum EFI with 4 speed automatic overdrive, 3800 stall lock-up converter and 4.30's (closest thing to an automatic 5 speed going)

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