C6 to NP435 questions......

[BigManBrock07]

Ok, a serious question here. I have a f/s Bronco with a C6 with 1st gear slippin' rather bad at take off...when you first put it in gear. After that it's fine...but it just takes a sec to kick in on cold days and shit. Well that gets real annoying to me and I got a quote from a local guy I really trust to rebuild it for $400 if I pull it. This would include a good shift kit and possibly a nice converter for it.

So here's my idea, I have an NP435 sittin' in an old '79 with a 205 behind it. I really want a stick, I just love them and it really helps with towin' and shit. So can I install the 435 and 205 in the '84 Bronco for less than $400 if say the 4 speed is in ok condition. He'd charge me like $50 to take it and the 205 fully apart and replace anything wrong plus parts. Not bad on my end I don't think. But the '79 isn't a hydro....can I make sure to do that when it goes in the '84. Plus I would need the clutch petal, master and slave, and a good clutch.

What else is needed for this swap.....the crossmember from an 80-86 truck with this tranny right....will the '79 tranny bolt up to the 80's crossmember.

I searched but didn't find as much as I would have liked.

TIA....
Phil

[Proeliator]

This is an easy swap, but it kinda depends on what engine your swapping it to. I just did this to my 460, and needed flywheel, clutch, pressure plate, clutch bracketry, bellhousing, and the np-435 off course. You could do this swap for a hell of allot less than $400, especially with a parts truck. I spent allot more, but I went with a new flywheel drilled for a 12" clutch, new clutch, new pressure plate, etc. Sticks rule.

[saf-t scissors]

The 435 is going to be about 3" shorter than the C6 (probably a long tailhousing on that Bronco), so you'll be shortening/lengthening driveshafts, too.

You might get away with taking the stock C6 crossmember and sliding it forward.

[Proeliator]

I ended up only having to move the crossmember up about 1" on my application. However, the driveline had to be lengthened quite a bit.

[BigManBrock07]

Proeliator, what did you have for a tranny in your truck to begin with? I ask because I'm curious what kind of cross member you used. Was it a C6?.....I didn't know if they would bolt up to the tranny...if so I can slide it forward w/o a problem I doubt. Thanks, Phil

Oh yea....what kind of clutch does everyone use. I'm pretty sure I'll get a new one as well as flywheel and all and I really want it to hold up. What would ya'll suggest?

[Proeliator]

It was a c-6 that was swapped to the np-435. I used the stock cross member, they use the same one, it will bolt right up. Yea, all you will need to do is more it forward a little. I'd suggest going with a 12" clutch. Several companies make good ones, Mcleod for one.

[BigManBrock07]

Ok, then let me ask this. Will the Bellhousing from the 79 work for the hydrolic....I don't think so.

That note then, what all will I need...piece by piece.

The clutch plate, pressure plate, throwout bearing, fork, pedal, master, slave, hose.

What else....Please guys...I've never messed with this tranny or any clutch really so I'm like a blind guy walkin' through traffic. Lead me around a little please. Thanks.

[Proeliator]

To be honest, I don't know jack shit about 80s broncos. Like I said, this is an easy swap with the old 70s stuff and the old auto/stick cross members were the same, but I can't give you any guarantees with a 84. Whats this going behind, a 351? Anyways, just do it and fab whatever you need along the way.

[BigManBrock07]

Ok guys, one of you 435 guru's know what all I need to switch it over from auto to Hydro. I'm just lookin' for names of parts. Like the fork and clutch and shit like that and maybe years although I would guess anything from 80-86 would work.

I would appreciate any help as this is my first clutch set up. I have no doubt I can do it well, just need to know a little more.

Oh yea, I want to stick with an 11" disc as from what I've read they work much better. So names of good clutch assy. would be nice as well.

Thanks guys, Phil

[infoford]

ok you prolly going to need to get a different bell housing anyways
what engine in the 79
and what engine in the 84

just get a bellhousing for a 84 and all the clutch stuff from a 84-86
bronco/truck since you need to get this stuff anyways

you prolly have a 300/302/351w in your 84

the 79 prolly had a 351m/400 which uses a completely different bellhousing

so find a mid 80s donor truck and all will be well

[BigManBrock07]

Infoford, the '79 has a nice 300 in it. As the 300 is running good, I just want the 435. I know the bellhousing will bolt up...but I want a hydraulic clutch, so can I either make it work or just find another bellhousing and go from there?

Thanks....Phil

Oh yea...I've got a 351W soon to be a 408. Thanks guys.

[infoford]

if you want hydrualic clutch then you will need the 84 to when ever the quit using the 4 speed tranny bellhousing as it has a couple of bosses cast in to it for the slave cylinder to mount to
other then that it is the same bellhousing