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 Re: Dakota Bellhousing
[Re: Greg55_99]
#296439
08/06/03 10:32 PM
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Anonymous
Unregistered
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I'm NOT an Isuzu guru but I've done some digging into just what can fit what and I've posted that info at various sites. Some of it might be helpful to you gents. Here goes:
The Jeep/Dodge AX15 5-speed, the Jeep NV3550 5-speed, the Toyota R150F & R151F, the 87-92 Toyota Supra Turbo R154 and the Isuzu AR5 5-speed all share the same case to bellhousing bolt pattern. As such there are a number of possibilities that can be had when a 5-speed is desired:
94-95 Dakota 2.5L bellhousing: Connects all to any K car based 2.2L-2.5L L4 in a RWD application.
94-99 Dakota 3.9L V6 Bellhousing: Connects all to any 3.9L V6 and any 273/318/340/360 V8.
96-99 Dakota 2.5L bellhousing: Connects all to any Jeep 2.5L L4. Because of it's GM inherited bolt pattern, also works with any Buick FWD V6 and supercharged V6, any Chevrolet 2.8/3.1/3.4 V6, any Cadillac 4.1/4.5/4.9 V8 and with a minor modification, any Olds Aurora DOHC V8 and Cadillac DOHC Northstar V8.
88-99 Jeep 4.0L L6 bellhousing: Connects all to any AMC 290/304/343/360/390/401 V8 and any 72 and later 232 L6 and 258 L6.
01-03 Jeep Liberty 3.7L V6 bellhousing: Connects all to any 3.7L V6, 4.7L V8 and 5.7L Hemi V8.
Isuzu Trooper 3.5 V6 AR5 bellhousing: Connects all to any Isuzu 3.2\3.5 V6
Aftermarket:
Advance Adapters: Bellhousing for AX15 to Chevrolet-Buick-Olds-Pontiac V8 and Buick V6. Connects all to same.
Advance Adapters: Adapter plate for AX15 to Ford bellhousing. Connects all to same. Also they have a plate for the NV3550 to do the same.
Novak Enterprises: Adapter plate for AX15 to GM 4-speed bellhousing. Connects all to same.
Further info: Jeep AX5, Toyota W55, W56, W57 and W58 5-speeds all share a common face pattern on the case. As such, any 88-99 Jeep 2.5L bellhousing (NOT Dakota) will bolt a Toyota W series transmission to a 60 degree GM bolt pattern.
Aftermarket: Advance Adapters makes a bellhousing to bolt a W series Toyota trans to a Chevy-Buick-Olds-Pontiac block.
NOTE: Input shafts lengths vary.
Pre 1995 R150\R151 = 6.5"
1995 up Toyota R series = 7.5"
AX15 = 7.5"
87-92 Turbo Supra R154 = 7.25"
AR5 = ?
NV3550 = 7.5"
AX5 = 7.5"
Toyota W series = 6.5"
Advance Adapters makes an extra long pilot bearing when using a shorter input shaft tranny with a bellhousing that had a longer one. Obviously you can't put the longer input trans into a bell that had a shorter one.
Front bearing covers are interchangeable between the R series, AX15 and AR5. NV3550, AX5 and W series are not interchangeable.
I'm out of breath. Time for a beer.
Greg Williams
So...in theory.... ignoring details like rad clearance, motor mounts, wiring... any of the above engines will bolt up in place of my 2.8 V6?!?! Now that is interesting!!
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Re: Dakota Bellhousing
[Re: Greg55_99]
#296440
08/07/03 01:03 AM
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Anonymous
Unregistered
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More trivia if you want to swap in a Dodge 2.5/Dana 300, the "1st Gen" Dakota 2.5L OHC up to 96' I believe, with the AX-15 will adapt via Novak/AA to the Dana 300 Transfer case.
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Re: Dakota Bellhousing
#296441
08/07/03 05:08 AM
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Joined: Oct 2002
Posts: 2,285
Body Damage is Cool
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Hey greg, what do you have in your truck and what part of Boston are you from?
CHRIS
98 Amigo, 92 Pup
need a pickup 1st gen fuel level sender
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Re: Dakota Bellhousing
[Re: CPOM]
#296442
08/07/03 07:48 AM
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Anonymous
Unregistered
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Holy crap my head is spinning!!!! <img src="/forums/images/graemlins/cheers.gif" alt="" />
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Re: Dakota Bellhousing
[Re: Greg55_99]
#296443
08/08/03 02:08 AM
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Joined: Aug 1999
Posts: 9,030
4x4Wire.com Managing Editor Emeritus
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Thanks for posting the info, Greg! The Jeep/Dodge AX15 5-speed, the Jeep NV3550 5-speed, the Toyota R150F & R151F, the 87-92 Toyota Supra Turbo R154 and the Isuzu AR5 5-speed all share the same case to bellhousing bolt pattern. I'll go you one further -- all the trannies in question are of the same Aisin family... so substantial interchange is available in components... that'll come in handy when you want to adapt to a different bellhousing or flywheel, when you need a different input shaft length exposed, or when you want to swap a tailhousing to allow bolt-up of a different transfer case. The real hot swap, IMHO, is the R151 with the stock tailhousing that allows bolting-on teh Toyota gear-driven transfer cases for which so many different gearing options are available... <img src="/forums/images/graemlins/kewl.gif" alt="" /> It is sorta non-traditional to think of the tranny as the adaptor, but the bolt pattern on the front of it is what allows attachment to so many bellhousings, and I remain flat-out amazed that the swap-happy Jeeper crowds haven't developed this path that much... That's the root question I have, I guess.... why is this so poorly known? <img src="/forums/images/graemlins/confused.gif" alt="" /> Marlin started down this road, but I think he just got too busy to continue. Certainly a market opportunity exists! Greg, you definitely have compiled a great amount of info on this -- great job! <img src="/forums/images/graemlins/grin.gif" alt="" /> Randii
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Re: Dakota Bellhousing
[Re: randii]
#296444
08/08/03 03:35 AM
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Joined: Jun 2003
Posts: 53
OP
Getting the Wheeling Fever
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Chris, I don't have an Isuzu. I'm actually a Buick 215/Rover V8 in a TR7 guy. My quest for all of this info started when a gent from Australia told me the hot ticket for a 5-speed behind a V8 down under is the Supra Turbo R154. I decided to experiment and picked one up at a local boneyard for $175 plus $50 for the driveshaft. I had absolutely no idea how to hook one up to the other. Couple weeks later I went back to the same boneyard and literally tripped over a gearbox they had laying on the ground. When I eyeballed it, it looked a heck of a lot like the R154 I'd just bought. I asked the boneyard guy about it and he said it was a Dakota truck tranny. I couldn't believe they were almost the same thing. How could this be? So.. I started asking questions. To Novak in Utah. To a lot of people. The more I found out, the more fascinating the topic became. There was simply no one place that had all of this info. Now, you have the results of 18 months investigations. FREE! :-)
Randi, the NV3500 is not built by Aisin and as far as I know, shares no parts with any Aisin gearbox. New Venture gear puts them together. Now, why they have the same mounting pattern as the R series and AX15, I do not know.. but they DO!
Anyway, If you want a copy of the article I put together with photos for the MGB V8 Newsletter, send me your email address. No Yahoo or Hotmail address's. File is 10 meg.
Greg
PS. The AX5 is actually based on the Toyota G52 and shares parts with that gearbox.
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Re: Dakota Bellhousing
[Re: Greg55_99]
#296445
08/08/03 04:43 AM
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Joined: Jul 2001
Posts: 1,810
Body Damage is Cool
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Damn, dude thanks for the info. The can of worms is open! <img src="/forums/images/graemlins/cheers.gif" alt="" />
88 Troop - Posing yard art
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Re: Dakota Bellhousing
[Re: randii]
#296446
08/08/03 04:59 AM
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Joined: Aug 2000
Posts: 474
Mudrunner
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It is sorta non-traditional to think of the tranny as the adaptor, but the bolt pattern on the front of it is what allows attachment to so many bellhousings, and I remain flat-out amazed that the swap-happy Jeeper crowds haven't developed this path that much...
Randii, you pretty much summed it up with "swap-happy" Apparently the consensus is that if it came with the jeep, it needs to be removed. Of course the differingopions on build methods may play a part-big engine vs low gears. Greg: The NV 3500 is a different transmission then the Aisin trannies, and is built by New Venture (probably). The NV3500 is also different than the 3550 in a very major and imortant way. The Nv3500 does NOT have a removeable bellhousing, the NV3550 DOES have a removeable bellhousing. Of course at this point I am really hoping I remembered the details correctly from researching a Dodge 3.9 V6 and tranny swap into an Amigo (a truck that is gone now). The important part is the bellhousing interchangeability. hmm.... Good luck
Mike Walter
'98 Amigo well used
'94 Rodeo in need of help
'99 Ram CTD for hauling feather pillows
'01 unheated shop
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Re: Dakota Bellhousing
[Re: Greg55_99]
#296447
08/08/03 06:51 AM
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Joined: Aug 1999
Posts: 9,030
4x4Wire.com Managing Editor Emeritus
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I'm actually a Buick 215/Rover V8 in a TR7 guy. Excellent -- I bet that aluminum motor makes that wheeled wedge SCREAM!!! <img src="/forums/images/graemlins/grin.gif" alt="" /> Randi, the NV3500 is not built by Aisin and as far as I know, shares no parts with any Aisin gearbox. New Venture gear puts them together. Now, why they have the same mounting pattern as the R series and AX15, I do not know.. Yep -- I missed commenting on the New Venture 3-series box above.... definitely not an Aisin! I understand why the Aisin trannies cross, but I can only speculate about the NV box. I wonder when the NV box was developed? The Aisin boxes were in vehicles in the mid-80s, maybe NV leveraged the existing bellhousing? Definitely odd... Anyway, If you want a copy of the article I put together with photos for the MGB V8 Newsletter, send me your email address. No Yahoo or Hotmail address's. File is 10 meg. I'd love to work with you to host that content.... GREAT STUFF! I'm outta here for the weekend... talk to you next week! Randii
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Archive worthy?
[Re: randii]
#296448
08/19/03 11:20 PM
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Joined: May 2002
Posts: 1,541
Isuzu Moderator
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Randii,
Will this be making it into the archives so it might be easier to dig up at a later date? I'd love to have this info once I'm looking into more radical surgery on the Troop and wouldn't want to see it buried.
James
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