conversion kit for 203 t case - The 1947 - Present Chevrolet & GMC Truck Message Board Network

stan79chevy · 09-20-2003, 11:19 PM

has any one put in one of the conversoin kits for the 203 transfer case to make it part time. if so how hard was it. and what is the shift pattern. i have a 203 and only the manual hubs, so after a stuck i have to get out and lock them in. i would prefer to lock the hubs in first the shift form 2wd to 4wd after a stuck like a 205.

smokekiki · 09-22-2003, 02:05 PM

The 203 is full time unless it has been converted with a kit.It's not supposed to be good on it to run it with manual hubs unlocked.Are you running it in 4wd locked?Also your hubs should be locked and ready before you get stuck.I don't have the kit,I was also wondering how well they work.

Mudder · 09-22-2003, 02:31 PM

I had one installed about 20 years ago in mine.........has taken a lot of abuse and never had any problem with it.

smokekiki · 09-22-2003, 03:28 PM

stan79chevy,go to www.coloradok5.com on their revue board there is a write up on the 203 conversion kit from milemarker.Thanks Mudder,I am looking at a 71 suburban that has a 203 put in it.

hlm47 · 09-22-2003, 05:36 PM

I have a 77 GMC with the 203 case. The milemarker kit is easy to instale. If you don't use a kit of this type, the transfer will still be in 4 wheel drive. There are parts in the transfer that have to be changed. As far as the shift pattern, it stayes the same.
I have made the change for more miles per gallan. It didn't make it any better. On a wet road it's hard to start out with spinning the tires, And it seemes that I'm allways to late to put it back in 4 wheel drive.
It is a good kit, but I my self will be putting mine back to full time.
It may help you and I am not trying to talk you or any one out of it.
Thank you,
hlm47

trukkers69 · 09-23-2003, 08:35 AM

If you decide to get conversion kit , and if I can find the darn thing .I've got a brand new MileMarker kit I'll let you have for $35 plus the ride. Jeff

smokekiki · 09-23-2003, 09:12 AM

Jeff,this is Stans thread,if he doesn't want the kit I will.

alf4444 · 09-23-2003, 10:33 AM

I jump in line next for the kit if everyone else passes!

stan79chevy · 09-23-2003, 02:31 PM

i checked the colorado k5 site and that is what i want. you can shift form 2wd to 4wd from in the truck.

trukkers69
If you decide to get conversion kit , and if I can find the darn thing .I've got a brand new MileMarker kit I'll let you have for $35 plus the ride. Jeff

where do you live

trukkers69 · 09-23-2003, 08:49 PM

I'm located in Central Mississippi

stan79chevy · 09-25-2003, 09:42 AM

the napa near me has the kit with hubs for $95. i think ill get that one next week. are there any parts that i may need that arent in the kit?

smokekiki · 09-25-2003, 10:07 AM

I think on the k5 site it says you need some of the seals.Not sure which without rereading it.Thats a good price.JC whitney has them for 104plus shipping.

trukkers69 · 09-25-2003, 07:26 PM

You better buy it then .The kit I have cost me around 65 or 70 bucks , but thats been couple of years ago.

Smokekiki, your up

smokekiki · 09-25-2003, 10:13 PM

Let me know where and when.My zip is 19380.

09-20-2003, 11:19 PM	#1
stan79chevy Registered User Join Date: Sep 2003 Location: COVINGTON GEORGIA Posts: 477	conversion kit for 203 t case has any one put in one of the conversoin kits for the 203 transfer case to make it part time. if so how hard was it. and what is the shift pattern. i have a 203 and only the manual hubs, so after a stuck i have to get out and lock them in. i would prefer to lock the hubs in first the shift form 2wd to 4wd after a stuck like a 205.

09-22-2003, 02:05 PM	#2
smokekiki Mike Join Date: Jan 2003 Location: west chester pa Posts: 2,474	The 203 is full time unless it has been converted with a kit.It's not supposed to be good on it to run it with manual hubs unlocked.Are you running it in 4wd locked?Also your hubs should be locked and ready before you get stuck.I don't have the kit,I was also wondering how well they work. __________________ 70'c/10, 71 suburban4x4 402bb, 72suburban 4/6 drop, 72k/5 4x4 blazer 4" lift 35 tires

09-22-2003, 03:28 PM	#4
smokekiki Mike Join Date: Jan 2003 Location: west chester pa Posts: 2,474	stan79chevy,go to www.coloradok5.com on their revue board there is a write up on the 203 conversion kit from milemarker.Thanks Mudder,I am looking at a 71 suburban that has a 203 put in it. __________________ 70'c/10, 71 suburban4x4 402bb, 72suburban 4/6 drop, 72k/5 4x4 blazer 4" lift 35 tires

09-22-2003, 05:36 PM	#5
hlm47 Registered User Join Date: Jan 2000 Location: Pa. Posts: 3	I have a 77 GMC with the 203 case. The milemarker kit is easy to instale. If you don't use a kit of this type, the transfer will still be in 4 wheel drive. There are parts in the transfer that have to be changed. As far as the shift pattern, it stayes the same. I have made the change for more miles per gallan. It didn't make it any better. On a wet road it's hard to start out with spinning the tires, And it seemes that I'm allways to late to put it back in 4 wheel drive. It is a good kit, but I my self will be putting mine back to full time. It may help you and I am not trying to talk you or any one out of it. Thank you, hlm47 __________________ 77 4X4 Chevy 52 Chevy truck 4x4 (bulding) 67 Camaro RS

09-23-2003, 08:35 AM	#6
trukkers69 Registered User Join Date: Jan 2003 Location: Sebastopol Miss. Posts: 169	If you decide to get conversion kit , and if I can find the darn thing .I've got a brand new MileMarker kit I'll let you have for $35 plus the ride. Jeff __________________ EXPERIMENTAL STAGES OF SANITY _____________________________ Run whatcha brung, and hope you brung enuff

09-22-2003, 02:31 PM	#3
Mudder Registered User Join Date: Feb 2001 Location: East Central, MO Posts: 11,339	I had one installed about 20 years ago in mine.........has taken a lot of abuse and never had any problem with it.

09-23-2003, 09:12 AM	#7
smokekiki Mike Join Date: Jan 2003 Location: west chester pa Posts: 2,474	Jeff,this is Stans thread,if he doesn't want the kit I will. __________________ 70'c/10, 71 suburban4x4 402bb, 72suburban 4/6 drop, 72k/5 4x4 blazer 4" lift 35 tires

09-23-2003, 10:33 AM	#8
alf4444 Registered User Join Date: Dec 2002 Location: taylorsville, UT Posts: 778	I jump in line next for the kit if everyone else passes! __________________ 2011 CCSB GMC 2500HD DMAX 73 GMC 3/4 ton 4x4 96 Chevy 1500 STD Cab Shortbed Z71 Owner of WickedWolfRC.com

09-23-2003, 02:31 PM	#9
stan79chevy Registered User Join Date: Sep 2003 Location: COVINGTON GEORGIA Posts: 477	smokekiki i checked the colorado k5 site and that is what i want. you can shift form 2wd to 4wd from in the truck. trukkers69 If you decide to get conversion kit , and if I can find the darn thing .I've got a brand new MileMarker kit I'll let you have for $35 plus the ride. Jeff where do you live

09-23-2003, 08:49 PM	#10
trukkers69 Registered User Join Date: Jan 2003 Location: Sebastopol Miss. Posts: 169	I'm located in Central Mississippi __________________ EXPERIMENTAL STAGES OF SANITY _____________________________ Run whatcha brung, and hope you brung enuff

09-25-2003, 09:42 AM	#11
stan79chevy Registered User Join Date: Sep 2003 Location: COVINGTON GEORGIA Posts: 477	thats quite a drive the napa near me has the kit with hubs for $95. i think ill get that one next week. are there any parts that i may need that arent in the kit?

09-25-2003, 10:07 AM	#12
smokekiki Mike Join Date: Jan 2003 Location: west chester pa Posts: 2,474	I think on the k5 site it says you need some of the seals.Not sure which without rereading it.Thats a good price.JC whitney has them for 104plus shipping. __________________ 70'c/10, 71 suburban4x4 402bb, 72suburban 4/6 drop, 72k/5 4x4 blazer 4" lift 35 tires

09-25-2003, 07:26 PM	#13
trukkers69 Registered User Join Date: Jan 2003 Location: Sebastopol Miss. Posts: 169	You better buy it then .The kit I have cost me around 65 or 70 bucks , but thats been couple of years ago. Smokekiki, your up __________________ EXPERIMENTAL STAGES OF SANITY _____________________________ Run whatcha brung, and hope you brung enuff

09-25-2003, 10:13 PM	#14
smokekiki Mike Join Date: Jan 2003 Location: west chester pa Posts: 2,474	Let me know where and when.My zip is 19380. __________________ 70'c/10, 71 suburban4x4 402bb, 72suburban 4/6 drop, 72k/5 4x4 blazer 4" lift 35 tires



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