Need help on a part time conversion

[puckhead]

I have a 76 k20 camper special and I want to convert it to part time it has a 203 t case what parts do i need to complete this?

 

[pismorat]

I got the MileMarker part time kit. It installed pretty easily and I have had no problems with it in the 5 years it's been in. Make sure you get selectable hubs too.

 

[Smitty]

I have a 76 k20 camper special and I want to convert it to part time it has a 203 t case what parts do i need to complete this?

Take a look in the "Product Review" section. There's a great article on the part time kits. It's a pretty simple install.

 

[Cricket]

http://coloradok5.com/milemarkerpt.shtml

 

[chevy wrangler]

what does a part time kit do?? sorrry for the youngin question

 

[Cricket]

The output shaft on a 203 has spyder gears just like a differential. The part time kit just replaces the spyders with solid metal blocks so the differential action is eliminated, making it part time 4x4 instead of fulltime.

 

[MattK]

The output shaft on a 203 has spyder gears just like a differential. The part time kit just replaces the spyders with solid metal blocks so the differential action is eliminated, making it part time 4x4 instead of fulltime.

you can also get the full shaft kit. its a good bit more cash, but it makes the case stronger in the end and has less driveline play.

after installation, you end up with the option of 2 low...VERY handy on the trails.

 

[Cricket]

The down side of the conversion is that oil is no longer slung to the rear output bearing constantly because you've made it a "PART TIME" t-case. Just remember to run it in 4 wheel drive with the front hubs unlocked for about 20 miles every 200. I just pop it in 4 high every time I fuel up and run it about 10 to 20 miles to keep the rear output lubricated.

 

[chevy wrangler]

how do i know if i have a part-time 203?? it has manual hubs and when it is in 4-hi lok i can unlock the hubs

 

[ntsqd]

you can also get the full shaft kit. its a good bit more cash, but it makes the case stronger in the end and has less driveline play.

after installation, you end up with the option of 2 low...VERY handy on the trails.

My '79 came with the cheeper PT option already installed. Those blocks put a huge load on a tiny needle thrust bearing and mine went away. Once it does that you'll hear a rythmic 'ge-ding, ge-ding, ge-ding" which is the locking part of the center diff trying to lock while moving.
If you're going to keep the 203 I highly recommend springing for the more spendy conversion kit.


Or you could "convert" it to part time by putting a doubler in there.