hi there i,m new to this forum. looking for help and advice here.i,m interested to find if anyone out there manufactures from new a frame / chassis for a mid 80s K20 diesel 6.2 suburban. i havn,t found anyone yet !!!any ideas, anyone please.
just curious... are you repairing collision damage.. rust damage.. wanting a stock replacement.. as if you dig into the some older collision manuals.. you might find a part number for a frame.. and some GM dealer around the country might have one hanging in their rafters.. chance are small but still there...if you are looking for a totally aftermarket frame.. with various aftermarket suspension pieces.. lowered or bagged front and rear suspension.. the draw back is the 73 to 87 trucks were kinda recalled for the external mounted tanks.. gm would knock off a grand when you traded in one for a new gm truck ..there are brackets and reinforcing panels to repair frame damage around the steering box.. http://www.4wheeloffroad.com/brandpages/chevy/131_0209_fixing_truck_frame/index.html
basically researching for to buy a future vehicle.i,m looking for a stock chassis or a custom build chassis information , wasnt aware of recalls on these burbs really looking for a k20 diesel with turbo and a rust free body and chassis but need to know if there is any custom chassis fab shops that specialize in 4x4 vehicles .really only interested in diesel power so if i go pre 73 i loose that option , but i also like 60s and 70s burbs too . i also want to stay away from any form of computer engine management systems basically i,m looking for a rough tough vehicle for pavement use and also off road too that i can fix with my own tools and i dont need a computer for any fault finding .i contacted one place and they said they can fab up a 1/2 ton for a c10 pick up and thats as big as they go.
the real trick is.. GMC and chevy pickups have had diesel power available since the early 60's..a really good friend of mine (rip) .. had a 62 GMC pickup with a 3-71 diesel with some kind of 5 speed as i recall.. drove it everywhere.. unstoppable.. depending on your SMOG regulations.. you might be able to swap a NON computer controlled diesel into any pickup.. or suburban.. there are 55 magazines on this site.. and one dieselpowermag.com i did find some info...An option for the diesel that might be easier or cheaper is a 4BT cummins from a bread truck. Some of those came with a TH-400 transmission.It's actually fairly simple to hook a SM465 up to an in line 53 series engine. You just need to get a GM bellhousing for it. (It's simple to get the parts for that is. I've never done it personally but know a few that have with no problems.) The V-53 series and the 71 series however will use an SAE series bellhousing as Smalltruckbigcid noted. Most road application Detroits came with the SAE #2 size. The main problem is that these engines don't like to rev, so any transmission without an overdrive really maxes your top speed out pretty slow. There's also issues with pilot bearing sizes,etc. Currently, I have a 13 speed roadranger for mine, but I'm not sure I'm going to use it. There's a company called phoenix casting that make transmission adapters for big engines. I was thinking about using a NP4500 or even a Tremec TR-4050 which is a beafier heavier duty 5 speed overdrive with similar gear ratios.
also.. i was under ... as i am usually on top.. of a 98 C2500 2 wheel drive pickup the other day.. i was really impressed with the construction of the frame.. i wonder if you could pick up a late 90s truck and swap your earlier body on it to get the best of both worlds.. early body.. late frame.. tank inside the frame rails.. i don't know where they stash it on subs..i think there are some 4BT swaps over in jpmagazine on this site.. but thats into jeeps.. there is also dieselpowermag on this site.. i have counted almost a dozen truck magazines if you include these in the rodding section.. 4 Wheel & Off-RoadDiesel PowerMini Truckin'Truckin'4 Wheel Drive & Sport UtilityFour WheelerOff-RoadTruck Trend8-LugJPSport TruckRV MagazineClassic TrucksCustom Classic Trucks
ok thanks again for all your help and advice , theres heaps for me to sift through.i did look at a i think 1992 2500 stake bed truck and the vehicle was very clean , the chassis was enormous it was v8 diesel turbo but the guy wanted too much !i dont want to get into odd motor and gearbox swaps, if i can off the shelf mix and match that makes things easier. i,m considering running bio diesel too. i,m not into performance just grunt and some off road rocky terrain stuff at times . plus it has to be a family a to b basher too, so i,ve got to have up to date seat belt system as well.if i buy a vehicle which is good bodywise and the chassis is gone thats where i need to know if i can buy a brand new chassis from a builder who runs a line in said model.ok thanks again , i will keep looking