This site has a plow on a lifted K-20 http://www.chuckschevytruckpages.com/

"Bubba Tub" 1977 K-10 350,Th350,Np203 D60/14ff 4.56's Detroit Rear. 7" lift, 39.5/16.5 Swamper TSL's.

 

the page that FrankP linked is a good one for alot of info. Here is a link from that page that should answer your tranny question. http://www.chuckschevytruckpages.com/images/transpan.jpg

 

The 14 bolts you counted means it is a GM Corporate 14 Bolt rearend. These are very strong & desirable. Remember with 16.5 rims you won't have the lip part that helps hold the bead like a 16" rim.

Andy Bridgeman Longmont, CO '87 Samurai '88 K3500

 

well, theres nothing wrong with body lifts. the only drawback is you dont actually gain ground clearance b/c the frame stays the same level, but you gain tire clearance. i still cant figure out why people say they are bad. guess maybe its one of those "mines better b/c i spent 5x that much on a suspension lift" ego things, who knows. it will look like the new HD chevys the way the frame hangs down a little bit more than stock. look at the pics of my truck, i dont think it looks terribly bad. anyways - i dont believe GM ever put dana rearends in their trucks, just frontends. they have GM corporate rears (yours being either the 14 semi-floater or 14 full-floater, both are very strong). as for front springs you can get heavy duty ones that have a higher spring rate and wont sag so much with the plow. as far as why not to lift a plow truck, im guessing b/c you would raise the center of gravity and not be able to give the truck the same leverage when plowing, just a guess though.

Mike ~
* Earnhardt Forever *

89 Chevy K1500 some goodies, but not enough! /wwwthreads_images/icons/tongue.gif

 

I know about the rims, but I wont ever air them down...no rock crawling for me...no rocks around here!

Thanks guys

Too many toys, not enough time or money!

 

What determines a dana? I was told if it has the little mini bolt on hub in the center of the wheel, it was a Dana.
What else determines a Dana?

Too many toys, not enough time or money!

 

also, what determines the semi floater and full floater rear axles? Thanks!

Too many toys, not enough time or money!

 

also, I have a NP 208 transfer case, I dont see it listed on chuck's page, are they any good? what "np" stand for? I'm thinking "new process" gear....I live about a 1/2 hour away from it!

Too many toys, not enough time or money!

 

well the "mini bolts" on the hub denote the 14 bolt full floating axle. a full floater is an axle in which the carrier does not support the full weight of the axles, only provides them with power. i believe they have an extra set of bearings that allow this to happen. the semi floater has the same c-clip design as normal axles, only it is stronger due to larger carrier and axle shafts. i prob messed up one of the details, in which case im sure someone will correct me but i know im on the right page. as for the NP yes its new process and the 208 is pretty strong, not as strong as the 205 i think but still strong. there are more details about aluminum vs cast iron and shaft vs chain driven that someone else will explain more b/c i dont know a lot about the older tcases

Mike ~
* Earnhardt Forever *

89 Chevy K1500 some goodies, but not enough! /wwwthreads_images/icons/tongue.gif

 

Hello 2mnytoys. The difference between semi and full floater axles is that semi-floater's axles shafts have to carry the weight of the rear end, in addition to turning the wheel. A full-floater carries the downward force of the truck on a set of fixed spindles, in other words, the force is carried by the housing. This means that the only force applied to the axle shaft is the twisting force applied to the wheel. As to you wondering about the np208, I can tell you that your transfer case is plenty strong. I have the same one in my 86 K10, and have never had a prob with it. The 208 was made as a lighter replacement for the cast iron 205. The aluminum in the 208 will crack if you smack something(like a rock) but I don't think that is a problem for you. The body lift is fine, just don't go over 3inches. Happy plowing.

I will mudbog tommorrow, because tommorrow is Sunday, and I always mudbog on Sunday.