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So I’m going to try to turn my 1986 c6 4x4 to a 2wd. How hard is it? Can I scrounge the parts rat a wrecking yard? Seems straight forward to me but I’ve been wrong before.
I’m not sure why you would want to do that. Don’t put it in 4wd? You would need the (almost) opposite of everything needed to convert to 4wd so…. rwd transmission, rear driveshaft, twin I beams, patch panel for the hole in the floor.
Changing the trans requires the housing and shaft and a complete teardown to install them. X2 on post 2, just drive in 2wd or horse trade it for a 4x2.
I would think the OP would be happier body swapping and engine swapping to a 4x2 frame , maybe even a roller, so he could make it nice and new suspension parts and ground up perfect. Than to spend energy / time trying to get a c6 from a 4x4 to a 2wd variant
especially if hes talking about a ford small block. im no expert but I imagine a c6 2wd that mates to a ford small block is Not hard at all to find. Maybe even a rebuilt kind...
Idk what you use your truck for but maybe youd want to go to a 4speed at that same time.
I've found myself using low range in 2wd (front hubs unlocked) ways more than actual 4x4 (that only gets engaged in snow and mud) - backing up trailers, creeping around campgrounds / lumberyards / farms, even just climbing over a curb when parking in a tight spot.
I would never voluntarily remove a t-case that's already there and working well. Actually once I even put in 4x4 transmission and t-case in a 2wd truck, its was a crew-cab F350 that regularly pulled horses and livestock and a big camper and the owners wanted a manual swap, I suggested using the 4x4 stuff for the above reasons and they ended up quite happy with the extra set of gears.
I've found myself using low range in 2wd (front hubs unlocked) ways more than actual 4x4 (that only gets engaged in snow and mud) - backing up trailers, creeping around campgrounds / lumberyards / farms, even just climbing over a curb when parking in a tight spot.
I would never voluntarily remove a t-case that's already there and working well. Actually once I even put in 4x4 transmission and t-case in a 2wd truck, its was a crew-cab F350 that regularly pulled horses and livestock and a big camper and the owners wanted a manual swap, I suggested using the 4x4 stuff for the above reasons and they ended up quite happy with the extra set of gears.
i don’t know what kind of t case you have but on my np208 in my gmc I know that it’s not a good idea to do that in 2wd because it’s extremely hard on the t case. It may have something to do with it being synchronized or chain driven maybe. I forget why. But to my understanding you have to do a certain mod to make them do that without it being hard.
this is of course pending how your t case works, but figured to warn incase I’m on to something
So I’m using the 86 f250 4x as a donor for my 75 c650 pickup project. It’s going to be a 2wd truck it’s got a triangulated 4 link rear on bags, 70s dodge 1 ton 2wd front axel with a 3 link. I’m not going to worry about the driveshaft I can make one in my lathe. I want to do it because I’m on a budget and the donor only has 60k and works well and I prefer the devil I know over the one I don’t. This is a “custom” truck and just trying to save a few bucks by scrounging for parts. Bobbed frame Mock up Widened bed 1 foot What I started with Pinterest pic inspiration
I'm not aware of any Ford Automatic transmission that can be swapped from a 2WD to 4WD configuration without complete disassembly of the transmission, to change output shaft. But to be fair, I've hardly got personal experience on doing it on every option out there. I can say it's absolutely true for the C6 and the AOD.
It's not the worst job in the world, but C6's are cheap, 2wd versions doubly so, if you poke around, I mean, I've got three of them just sitting here somehow (all setup for Transfer Cases, oddly enough)
I’m going to go with y’all that are staying on the subject, and get a different transmission. I have a tranny and t case with a front axel for sale cheap!
I’m going to go with y’all that are staying on the subject, and get a different transmission. I have a tranny and t case with a front axel for sale cheap!
thanks again
Thats exactly it too, you may find someone whos going from 2wd and needs a 4wd trans and case, so throw it on fb lol
So I’m using the 86 f250 4x as a donor for my 75 c650 pickup project. It’s going to be a 2wd truck it’s got a triangulated 4 link rear on bags, 70s dodge 1 ton 2wd front axel with a 3 link. I’m not going to worry about the driveshaft I can make one in my lathe. I want to do it because I’m on a budget and the donor only has 60k and works well and I prefer the devil I know over the one I don’t. This is a “custom” truck and just trying to save a few bucks by scrounging for parts.
Keep the transmission and transfer case you have now. There's zero downside to running the case in 2wd 95% of the time, but I guarantee you there will be times you're gonna find that extra low range useful. You already have the transmission and you know it's good. If you have the BW 1345 t-case that's got a fixed yoke output and that setup is better for vehicles where the axle moves up and down a lot (really it's always better but it costs more to manufacture hence the existence of slip-yokes). And it saves you from buying a transmission that you don't know the history of and possibly ending up with a dud.
i don’t know what kind of t case you have but on my np208 in my gmc I know that it’s not a good idea to do that in 2wd because it’s extremely hard on the t case. It may have something to do with it being synchronized or chain driven maybe. I forget why. But to my understanding you have to do a certain mod to make them do that without it being hard.
Done it with a 208 with a fixed output for a while, zero issues. Running a 1356 now, fixed output again, no problems. I think the issue with the 208 is that the gears are strong but the case they I've in is not. The BW units are much beefier in that regard. But then again it also comes to how you're doing things, some ppl can break a bearing ball against a padded room wall 😂
I just rebuilt my E4OD, I believe the C6 is similar. You can tear it down and do that - Its a lot of work. I would think its easier to find a 2 wheel drive transmission that fits the bill.
If you do tear it down, the ASTG manual is a good reference manual, I'm sure they have one for the C6. There are probably videos on line as well. I used the Transmission Bench videos, they were good. step by step. (worth watching to see what you're into)
I also think by the time you buy a new tail shaft, tail stock, bushings, seals, gaskets, tools, etc. its probably close to the same as a used transmission.
If you diy rebuild, all new friction parts, etc etc etc. It adds up.
Just my 2c, but personally, I kind of like the idea of keeping the transfer case option, especially for that build. It's probably the most budget friendly as well. I don think you're going to hurt anything driving around the yard in 4 low, that sounds like a nice option.
Done it with a 208 with a fixed output for a while, zero issues. Running a 1356 now, fixed output again, no problems. I think the issue with the 208 is that the gears are strong but the case they I've in is not. The BW units are much beefier in that regard. But then again it also comes to how you're doing things, some ppl can break a bearing ball against a padded room wall 😂
I think the case, i think youre right. The amount of torque going through to just one side, if you were to slip traction or something I think maybe it was idk. but nice.
Also, I own 2 np205's, a np203, and an np208. I think im gonna fix my original sm465 and np205 and put back into my gmc since Ill have the right length driveshaft too, and its a np205 for taking some abuse, and np203 is sitting in my 78 roller frame Chevy k10, debating if i want to fix that up with a np203 or maybe use np205 in it. lol. although Im not doing much with my np208 until I fix some mounts... lol
BUT ANYWAY, thats true. All I know is Low and 4lo is magic
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