I-6 T-18A input shaft

[Mikel2]

I might need to convert a V8 T-18 to I-6 configuration... Does anyone know where I can get a shorter input shaft, or who might have an I-6 T-18 for cheap?
Thanks.
Mikel

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1978 Jeep Cherokee Chief
360 4bbl/T18A/Dana 20
http://www.virtue.nu/yazahx/rand/pollitopequeno.jpg

[scotty]

t18 stuff is gettin hard to come by. you might check at www.4xheaven.com (http://www.4xheaven.com) and see if they can point you in the right direction if they dont have it.

just FYI,i just installed a v8 t18 behind the 258 in my GW. i actually really like where the shifter comes up,its in a nice spot for me. the wheel base of the wag is enuff that you you still have plenty of room for a rear driveshaft with the longer tranny,so it can be done unles you have an ungodly amount of suspension lift http://www.ifsja.org/ubb/smile.gif

however(you knew this was comin didnt you http://www.ifsja.org/ubb/wink.gif ) in order to do it you must move the crossmember well past the last set of holes. mine ended up with 3 of the 4 bolt holes on eace side still on the boxed setion of frame,so i decided it was all good.

if you are swapping in a 6 in place of a v8 and allready have the t18 it makes alot of sense to convert the tranny and not have to mess with moving crossmembers and making new driveshafts. you will also need 6 cyl clutch linkage,as the belcrank will move back towards the firewall.

good luck...

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scott
85 grand wagoneer
258 with motorcraft 2bbl/t18/spicer 18 with pto/widetrac offset d44s/rear discs
38x15.5 gumbo mudders
snorkel/dual batteries/onboard air/"custom" convertable
3 inch body lift/mostly stock suspension/"modified" fender openings
custom front/rear bumpers and brushgaurd

vw turing brake,BIG tow truck PTO winch and full roll cage install very soon
4.0 aquired-4.5L stroker someday...

now we can do some 'wheelin!

[Cecil14]

There's a good chance I'm wrong here, but aren't the I6 input shafts actually longer than the V8, due to the fact that the V8 sits farther forward than the I6?



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Anthony
1983 J-10
1979 J-10 parts rig

[Mikel2]

Thank you both.

Scotty: I've been thinking about doing that. Front drive line angles would improve, but I would need a longer front axle and to shorten the rear one. Nothing that can't be done now that I work at a machine shop http://www.ifsja.org/ubb/smile.gif http://www.ifsja.org/ubb/smile.gif The crossmember part is what I don't like.

Cecil14: The 258 is much longer than a V8, so a 360 needs an spacer to make up for the difference. The spacer in the I6 version is much shorter. As far as the relative position of both engines go, I have no clue http://www.ifsja.org/ubb/smile.gif
Mikel

[kyrel]

no they are not I have a t18 for a i 6 and it is about 3-4 in shorter than scotty I have it in a cj7 with a v8

[Mikel2]

Scotty, I also think that mounting the shifter a couple inches farther backward would be really cool. Maybe I could put a 3in long rice burner stick shift http://www.ifsja.org/ubb/smile.gif
I hear tons of complains about the way T-18's shift, but the very tired T-18 in my jeep shifts very very nicely, once you know how...

[scotty]

thus far i have only shifted mine sitting in the backyard,but i have no complaints bout the way it shifts. it is definately no worse than a np 435,an sm465,or ony other truck tranny.

lol,am picturing riceburner short throw stick,maybe with one of them big goofy neon glowing handles.hehe...

the cj version of the t18 is different,well,tranny is not different,but the belhoousing is bolted directly to the tranny and and is quite a bit shorter. both v8 and l6 got the same belhousing in a cj,as the engine is right against the firewall,no matter which it is.

in a fsj the v8 sits further forward in the engine compt. to keep the tranny in the same relative spot and keep the shifter from being under the dash http://www.ifsja.org/ubb/eek.gif the v8 t18 has an 8 inch or so long spacer between the tranny and belhousing. the 258 sits back further into the tunnel,and thus has a very short spacer betwen the tranny and belhousing,about 1 inch or so. this is the version that kryel has in his cj.

about the crossmember,i used the rearmost top hole as the new hole for the front bolt,and then drilled the other 2. at first i was bummed out about moving it back,and was afraid id have to make somethin,but i think that the 3 bolts will hold it fine. i may eventually box it in further and ad the 4th hole. i am not sure what this will do for your mount,however,mine was broken and since i couldnot find one anywhere,i am using the mount for an amc eagle.it has 4 holes to bolt to the crossmember(2 per side) and ive got it as far back as possible,and am only using 2 of the holes. i dont think it should pose any prollems. the other prollem i had was the shifters for my spicer 18 xfer had to have alittle creative bending for seat clearance. i would think the "U" shifter box as is is would be alitle better ergonimically if it were a few inches back,so should be ok there as well,tho if it were me,id take the opportunity to make a twin stick shifter for that bad boy while youre at it-specially if ya owrk in a machine shop!

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scott
85 grand wagoneer
258 with motorcraft 2bbl/t18/spicer 18 with pto/widetrac offset d44s/rear discs
38x15.5 gumbo mudders
snorkel/dual batteries/onboard air/"custom" convertable
3 inch body lift/mostly stock suspension/"modified" fender openings
custom front/rear bumpers and brushgaurd

vw turing brake,BIG tow truck PTO winch and full roll cage install very soon
4.0 aquired-4.5L stroker someday...

now we can do some 'wheelin!

[This message has been edited by scotty (edited June 05, 2001).]

[Mikel2]

Hi Scotty,
I've been having this dream... I ditch the 38in swampers and I turn my cherokee into a lowrider. The body lift should give me plenty of room for neon lights underneath http://www.ifsja.org/ubb/biggrin.gif
Wait, it was a nightmare!!!


Now seriously, I think I might have found an affordable T-18A and Dana20 (V8). I might jump on it and deal with the crossmember and driveshafts later.
The place where I work has a machine shop, but they wont let me in. I'm "engineering support" http://www.ifsja.org/ubb/smile.gif Hopefully I'll be able to sneak in... I need to fab some I-6 engine mounts...
Mikel

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1978 Jeep Cherokee Chief
360 4bbl/T18A/Dana 20
http://www.virtue.nu/yazahx/rand/pollitopequeno.jpg

[Mikel2]

Hey Scotty, I just re-read your sig, and I saw that you have a 4.0 to play with. How are you going to deal with the electronics, the Hesco wiring harness? I'm thinking of putting a 4.0 in a wag, with the T-18 and the highest gears I can find (2.73's?).
Mikel

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1978 Jeep Cherokee Chief
360 4bbl/T18A/Dana 20
http://www.virtue.nu/yazahx/rand/pollitopequeno.jpg

[scotty]

mine is gonna have a carb. inormally agree FI is much better,but for somethin thats constantly up to the hood(and deeper) in water/mud,id rather have a carb. my rig is opwn(no doors,no roof)and it would be a major PITA to try and waterprrof a computer. ive not really had much prollem with angles with the motorcraft,and a carb has always gotten me home-somethin that wont happen if you short out your computer. http://www.ifsja.org/ubb/eek.gif

hopefully that will happen next year. the blck and crank need too much machine work for me to be able to do it this year,with the everything else ive added.

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scott
85 grand wagoneer
258 with motorcraft 2bbl/t18/spicer 18 with pto/widetrac offset d44s/rear discs
38x15.5 gumbo mudders
snorkel/dual batteries/onboard air/"custom" convertable
3 inch body lift/mostly stock suspension/"modified" fender openings
custom front/rear bumpers and brushgaurd

vw turing brake,BIG tow truck PTO winch and full roll cage install very soon
4.0 aquired-4.5L stroker someday...

now we can do some 'wheelin!