Ok. I am in europe. We have ONLY diesels in the scrap yards here.
The last one i went to had 9 diesels.
Did you know it has a track bar reinforcement bracket on the frame?
Do you know of other differences?
What we have is:
2.1 renault with peugeot BA10 gearbox
2.1 renault with AX5 gearbox (i'm not sure there was one with the ax15)
2.5 vm motori with AX15 gearbox (beautiful, a '95, old chassis, new engine, got pics)
no autos, except for the post '96 VMs.

Both diesels are turbo, non-turbo don't exist. (I am sure)

Are you sure about the amc20 rear on your comanche? Never heard of that. Doesn't result from the parts cathalog.

Where do you get this infos about the gears?

 

non-turbo's DO exist, at least in the U.S. I've rebuilt a trans (ax5) on one.

IDK if I mis-typed my trans on my 2.1 TD...it is an ax5, and that is the only 5 speed offered on the 2.1 (in the U.S.).

in 86, the cherokee did not have any availability of a heavier duty rear axle. the comanche, however, was available with a single-piece axleshaft amc20 rear.

the information I have about gearing is from my build sheet on my 86 comanche...

BTW, 2.1 turbo diesels are rare over here. there's less than 1,000 of them in the states, probably less than half of that. there are less than 30 2.1 renault comanches in the states...I have only been able to locate 23 of them.

2.5vm diesel cherokees don't exist in the states.

 

I have never seen a Douvrin J8s 2.1 diesel non turbo engine on a jeep. Would like to see some pics.
Could have been adapted.
According to the Renault infos i have, the non turbo was dismissed in 1982 (because it had only 67hp) substituted by the aluminum crank case turbo version.
And there is no workshop manual, cathalog or any other written paper i have read and own that talks about a non turbo diesel engine on a Jeep or an automatic transmission behind the 2.1 or an AMC model 20 on a comanche, there was though an AMC model 35 with semi-floating axleshafts available similiar to the dana 35 non c-clip.
The 2.5 VM was sold in Canada. There is a guy on here who has one.

 

This is my old thread, maybe you can add some useful information.
https://www.cherokeeforum.com/f2/diesel-gears-21470/

 

...I'm talking about 2.1 renault, not doubrin. everything here is renault.

canada doesn't count (for the most part) in the U.S. as it's not exactly easy to import a car.

 

Hey wadda you mean Canada doesn't count?
I actually made a living importing southern US cars into Canada back in the early 90's. We use a LOT of salt on the roads in the winter and your lucky to have anything older than 12 years old on the road. The Americans have the CARS program to get older vehicles off the road. We just use salt! LOL

 

lol, well canada doesn't matter to me..I don't live there :P

 

Douvrin JS8 814 - JS8 815 is the name of the engine.

 

I just found out the 2.1 diesel was produced in the same factory where the PRW engine of the De Lorean was produced.

 

*shrug* delorean engines suck.

have a friend with one he gladly dumped it in favour of a gm 3.8l v6

never heard of douvrin, j8 or otherwise. like I said, they just don't exist.

 

The Renault 2.1 turbodiesel in your MJ belongs to the Douvrin family engines produced from 1967 to 1998, together with Peugeot. Douvrin is the name of the town in France where this engine was produced.
J8S 814 is the model name of the 2.1 renault engine.
GET IT?

What doesn't exist is an AMC 20 under a comanche, an automatic tranny behind the 2.1 and a non turbo version 2.1 diesel in a Jeep.

BTW, have you ever seen a diesel CJ7?

 

got it. stop being a douche.

yes, an automatic DOES exist behind a renault 2.1, YES there was a non-turbo version, AND YES THERE WAS AN AMC20 offered in 1986 in the comanche ONLY. this was all offered here in the U.S.A. but perhaps not in your area of the world

you probably will never see an auto trans in your area of the world in a diesel, you said it yourself comanches didn't come over there with anything but a dana 35, and you guys are smart enough to know to get a turbo. America has different options. we're fat, lazy, and stupid in the consumer market.

remember buddy...jeep is a coined U.S. product. AMC decided what went with what in the states based off different marketability. just so with exports to europe.

My dad and I worked on an 85 xj "wagoneer" (21 slot grille) diesel for a guy that was factory non-turbo, factory auto. it was an absolute dog.

my 86 diesel, which we got at 101k miles from the original owner with a few bent valves, a couple of broken rockers, and a bad timing belt, came factory original with a 2.1, turbo diesel, ax5 5 speed, np207, 4.10 gears, amc 20 rear, metric tonne rear springs, 4x4.

 

and no, never seen a diesel in a cj7. don't care to either...have no interest in CJ's altogether.

j-series and comanche/cherokee are all I'm interested in when it comes to jeep

 

Listen, i don't want to discuss any further with you. Unless you post some evidence about your statements, this discussion comes to a dead end for me.
There are plenty of cars with auto + diesel in europe and my family runs a repair shop of US vehicles where we overhaul automatic transmissions.
I have the parts cathalog of every year, make and trim of any kind of Jeeps, together with the workshop manual.
I have every kind of jeep.
We've got ******, M38s, CJ5-7-8, xjs, yjs, a zj, a tj, also a little freaking amphibious jeep and my totally fool dad is wanting a fkng jk to add to the more than 250 vehicles we own sitting around the shop.
We've had three customers with MJs, one was 4.0 2wd with column shifter and d35 rear, one was 2.1 diesel with ax5 and d35 and the other was a 4.0 with auto and d44.
All this configurations have a feedback on the parts cathalog, when there is absolutely no reference on an amc model 20 axle or a non-turbo renault engine or whatever, and yes, it says what it came with the metric ton package and the the other trims.
Question: what kind of hubs and bolt pattern does your "amc20" have? How many bolts? Huh?

 

you put chocolate in my peanut butter, you put peanut butter in my chocolate...