Not sure what all it will directly bolt to and what engines you would need a different bellhousing, but I've been researching a t56 swap for my truck. From what I hear, those 5 speeds that are behind the 4.3 and 4.8 have pretty low power handling. Maybe fine behind a bone stock 350, but much more and it might decide to blow up.
It will for sure bolt directly to the 350/305 engine, since in the 1/2ton variation they used the same tranny for those engines. As to the newer LS Series motor i believe the newer Vortec trannies are the same between the 4.3L and 4.8L however you will need the wiring for a manual tranny if you are swapping over from an auto to a manual.
Al, I am sure you can leave that bolt out, yes it is the top one, I don't know about the alignment pins, they are probably ok as well;
I would guess the transmission is a NV3500, this is a one piece case and the bell housing is part of the pour.
The NV3500 probably won't stand up to the torque from the bigger LS engines; but it could be used behind the torque of the 4.8.
But, it is my understanding that the bell housing isn't deep enough if you use factory 4.8 parts (flywheel, throw out bearing) an older 4.3 style clutch must be used.
However, recognizing the need, special parts are available from hotrod shops.
If it is a 88-95 tbi 4x4 5speed Chevy engine-trans match up most definitely will be the NV series either 3500 or 4500...And I've swore by em and stand by that transmission to this day...have seen 4.3's all way up to built 305's-383 stroker smc and they hold up great just keep your
Trans and diff gear oil nicely maintained...I've noticed they like to chew up a cheap clutch so if you want my advice a ceramic clutch kit on an NV3500-4500 on a SBC will make u happy...also those are not one peice they have removable bell housing, a 318 Dodge also accept NV4500 if it's set up for Dodge...
Far as 88-95 v6-v8 TBi engines are my favorite to hot rod because switching to carb is easy as switching those years intake out and tweaking the ignition set up for what kind your rather use....the 5speed (4speed with overdrive) actually will handle a 4 barrel carb swap with headers without batting an eyelash before n after so good luck hopefully something we all mentioned can help
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