5 Speed Getrag hooked to 3.1L?

[timdjohn]

Hello, this subject may very well be posted but I was unable to find it listed. I am new to the w-body and have a few questions.

 

I bought a 1992 Grand Prix SE with the 3.1L V6 and 4 speed automatic. The car is loaded with all the options, aero kit, moonroof power everything. Body is in excellent condition as well. The main issue is the transmission is toast on it. I would really like to drop a 5 speed manual into this car as it will go with future plans of suspension mods etc. the engine has only 80k on it and it runs and sound like new, so I didn’t want to have to look for a 3.4L to rebuild and hook to the 5 speed. I see that the 5 speed only came in the early years with the 2.8 and the 3.4 only. But will the 5 speed match up fine to the 3.1L with little modification? Also if I was to replace the tranny with another automatic will the 4T60E electronic transmission work in the pre 94 cars?

 

Thanks guys for any help.

 

 

Tim

[19Cutlass94]

the 5spd will bolt right up to the 3.1. No modding needed.

 

You better off just going with the 4T60 tranny and not the 4T60-E

[jeremy]

my car is a 3.1L with a factory 5spd....

[J]

i have a tranny for sale, pm me if you want it

[slick]

i have a tranny for sale, pm me if you want it

 

HAHA, the past few threads that deal with someone looking for one, i've seen you post this.

[jeremy]

Slick, your avatar is awesome !!

[19Cutlass94]

Slick, your avatar is awesome !!

 

haha agreed

[timdjohn]

the 5spd will bolt right up to the 3.1. No modding needed.

 

You better off just going with the 4T60 tranny and not the 4T60-E

 

 

WOW quick response time guys! Cool, I was hoping the 5 speed would bolt up. do I need to look for the one from a 3.4 or will the one from the 2.8 be just fine hooked to a 3.1?

 

I think the biggiest problem is installing the pedals.

[Bake82]

Look for one from a 2.8 o 3.1.

[SigEpCutlass]

the 5spd will bolt right up to the 3.1. No modding needed.

 

You better off just going with the 4T60 tranny and not the 4T60-E

 

 

WOW quick response time guys! Cool, I was hoping the 5 speed would bolt up. do I need to look for the one from a 3.4 or will the one from the 2.8 be just fine hooked to a 3.1?

 

I think the biggiest problem is installing the pedals.

 

All you have to do is make a hole in the firewall for the clutch pedal. Other than that, I believe it should be pretty straight forward if you are putting in a 282 or 284 MTX.

 

I also agree that slick's new avatar is absolutely amazing. lol

[jeremy]

I would get a 282 tranny from a 2.8/3.1

[timdjohn]

I would get a 282 tranny from a 2.8/3.1

 

So another question, did these transaxles only comein the w body cars or were they also in other GM's as well? Just so I am able to search for one in my area a it easier if i know what cars it may have come in.

[92LuminaRS]

Yeah, you don't want one from te 3.4 because it's a higher-revving engine

[dbtk2]

Yeah, you don't want one from te 3.4 because it's a higher-revving engine

 

It reving higher has nothing to do with why doesn't want it. The cost of them and the fact that they aren't rebuildable is mainly the reason why he doesn't want the 284 from the 3.4's.

 

Shawn

[jeremy]

It reving higher has nothing to do with why doesn't want it. The cost of them and the fact that they aren't rebuildable is mainly the reason why he doesn't want the 284 from the 3.4's.

 

 

exactly.....

[92LuminaRS]

ehhh, that's what I was told by a few people when I was interested in doing the swap.

 

I'll stfu now :oops:

[timdjohn]

Yeah, you don't want one from te 3.4 because it's a higher-revving engine

 

It reving higher has nothing to do with why doesn't want it. The cost of them and the fact that they aren't rebuildable is mainly the reason why he doesn't want the 284 from the 3.4's.

 

Shawn

 

The transaxle from the 3.4is not rebuildable! And GM wonders why Toyota is about to claim as the largest auto manufacture.

 

I take it I can rebuild the trans out o the 2.8? also will the manual trans from the 2.8 hook up to the 3.4?

[jeremy]

The transaxle from the 3.4is not rebuildable! And GM wonders why Toyota is about to claim as the largest auto manufacture.

 

I take it I can rebuild the trans out o the 2.8? also will the manual trans from the 2.8 hook up to the 3.4

 

IIRC: there are just no rebuild kits available for the 284....and yes you can put a 282 with a LQ1

[Guest TurboSedan]

So another question, did these transaxles only comein the w body cars or were they also in other GM's as well?

 

they can also be found in the Beretta/Corsica & Cavalier/Sunbirds.

[92LuminaRS]

I could have gotten a whole baretta with the 5 speed and 2.8L for $30 but I was told that it was a junk tranny and not to bother...

[jeremy]

I could have gotten a whole baretta with the 5 speed and 2.8L for $30 but I was told that it was a junk tranny and not to bother...

 

want a cookie??

 

[Guest TurboSedan]

<--- juz w3nt into fitz of teh m4d rawfflez.

[92LuminaRS]

mmmmmmmmmm cookie

[DaveFromColorado]

So another question, did these transaxles only comein the w body cars or were they also in other GM's as well?

 

they can also be found in the Beretta/Corsica & Cavalier/Sunbirds.

 

I I'm pretty sure all the J-body's got the Isuzu transmissions - it's a clean little transmission, extremely rebuildable, and the bearings for it are WAY bigger then what you'd expect, and the gears are a bit wider - helical cuts have a steeper helix angle so it's a quieter trans, but the gears themselves put too much axial load on the bearings because of that.

 

I always wanted to take an Isuzu trans and rebuild it with some custom made herringbone gears - that'd be quiet and strong as hell.

 

--Dave.

[slick]

It's not that the 284 isn't rebuildable, it's just that its not worth the money to do it, and most shops won't do it.