Rockwell xfer case ????? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

red71cheyenne · 03-08-2006, 12:19 AM

Does anyone still run a rockwell T221 xfer case? I'm trying to find out if the shift boot retainer ring in the cab had a shift pattern on it. Yukon Jack has one but his is plain, and I just wondered if they were all plain. My setup didn't come with a boot or retaining ring, so I don't know for sure. Thanks, Jeff.

**GMCPaul** · 03-08-2006, 04:06 AM

All of them are plain. Shift patterns were shown on roof or glovebox applied decals & on shifter knobs.
GMCPaul

red71cheyenne · 03-08-2006, 12:05 PM

Thanks Paul. Do you carry shift knobs for them that have the pattern, or am I SOL? Jeff.

1969K10 · 03-08-2006, 01:01 PM

You got a shift pattern on the knob for your T-case?!?! That would have been a great thing to have!!!

red71cheyenne · 03-08-2006, 02:51 PM

Quote:

You got a shift pattern on the knob for your T-case?!?! That would have been a great thing to have!!!

Uh oh, educate me! Is that something that didn't happen in our era trucks?

1969K10 · 03-08-2006, 07:22 PM

I have no idea if it was available. Someone could have just replaced mine with a boring knob with no markings on it before i bought it... Being that it is an old Rockwell, the shift pattern is backwards from anything I'd ever seen before. So, when i bought the truck, I had no idea that I had it in 4-HI for the first 3 months (summer). I finally got around to playing with it, and realized that the shifter was worn, and you had to hold your tongue just right to get it into 2 WD...

1969 GMC · 03-08-2006, 07:24 PM

When I got my truck (SM465/married 221) the transmission shifter had the pattern on it, but not the transfer case shifter. The knob just had a knurled edge around it. There was no shift pattern sticker, either.
All of the other Rockwell T221 equipped trucks I've seen were the same way.

**Yukon Jack** · 03-09-2006, 11:39 AM

Same here, the t/c shifter knobs I have seen for the Rockwell are smooth tops with knurled edge.

full foot notch · 03-09-2006, 10:16 PM

theres a M37/rockwell case going in my truck, is your case the twin rod setup that moves in and out of the case, and is a 4yoke case, or is it a 3 yoke case, lemme know, i have an online rebuild manual i tihnk for the 221 and has shift pattern in it

red71cheyenne · 03-10-2006, 12:38 AM

Mine only has the front and rear yokes. I have a sticker with the shift pattern, though, so no worries. I was just trying to find out of the pattern was shown on the knob or boot retainer as well. Thanks, Jeff.

boundstaffpress · 03-10-2006, 02:55 PM

Don't know what x-fer case it had, but my dad's 71 had a pattern in the knob.

1969 GMC · 03-10-2006, 03:48 PM

Quote:

Originally Posted by full foot notch

theres a M37/rockwell case going in my truck, is your case the twin rod setup that moves in and out of the case, and is a 4yoke case, or is it a 3 yoke case, lemme know, i have an online rebuild manual i tihnk for the 221 and has shift pattern in it

Dodge M37's had New Process model 200 transfer case, not a Rockwell.

Quote:

Originally Posted by boundstaffpress

Don't know what x-fer case it had, but my dad's 71 had a pattern in the knob.

That was the NP205.

full foot notch · 03-10-2006, 06:50 PM

depending on the year the M37 had either the 3yoke NP200 style that also appeared in power wagons, or a rockwell case that has 4 yokes(the top thru one that was used as a parking brake on the back side), ive got it in the back of my truck if any info is needed

**'68OrangeSunshine** · 03-11-2006, 07:23 PM

Do any of the vendors still carry a shift pattern decal for the Rockwell T221?

JAKES 68GMC · 03-11-2006, 09:33 PM

LMC or Chevy duty has them.

**Canadian694x4** · 03-12-2006, 12:46 AM

The PO of my Truck Mounted the Old Rockwell Knob (no Shift Pattern)on the shifter for a NP208 in my Truck...

03-08-2006, 12:19 AM	#1
red71cheyenne Back in the sticks Join Date: Jan 2001 Location: Fordland, MO Posts: 3,188	Rockwell xfer case ????? Does anyone still run a rockwell T221 xfer case? I'm trying to find out if the shift boot retainer ring in the cab had a shift pattern on it. Yukon Jack has one but his is plain, and I just wondered if they were all plain. My setup didn't come with a boot or retaining ring, so I don't know for sure. Thanks, Jeff. __________________ 1971 Cheyenne C-10 w/700R4 and Tuned Port Injection 1969 K5 Blazer w/Tuned Port 2010 2SS/RS Flaming Orange Camaro 2011 K1500 Suburban 2014 K1500 Pickup 2008 Nissan Altima? The wifes' hoopty

03-08-2006, 04:06 AM	#2
GMCPaul Senior Member Join Date: Mar 2000 Location: Rockville,In. USA Posts: 3,721	Re: Rockwell xfer case ????? All of them are plain. Shift patterns were shown on roof or glovebox applied decals & on shifter knobs. GMCPaul __________________ Secure Online Catalog for-GMCPauls Truck Parts Email- GMCPAULS@GMAIL.COM

03-08-2006, 12:05 PM	#3
red71cheyenne Back in the sticks Join Date: Jan 2001 Location: Fordland, MO Posts: 3,188	Re: Rockwell xfer case ????? Thanks Paul. Do you carry shift knobs for them that have the pattern, or am I SOL? Jeff. __________________ 1971 Cheyenne C-10 w/700R4 and Tuned Port Injection 1969 K5 Blazer w/Tuned Port 2010 2SS/RS Flaming Orange Camaro 2011 K1500 Suburban 2014 K1500 Pickup 2008 Nissan Altima? The wifes' hoopty

03-08-2006, 01:01 PM	#4
1969K10 Senior Member Join Date: Jul 2004 Location: Clarks Hill, Indiana Posts: 733	Re: Rockwell xfer case ????? You got a shift pattern on the knob for your T-case?!?! That would have been a great thing to have!!!

03-08-2006, 07:22 PM	#6
1969K10 Senior Member Join Date: Jul 2004 Location: Clarks Hill, Indiana Posts: 733	Re: Rockwell xfer case ????? I have no idea if it was available. Someone could have just replaced mine with a boring knob with no markings on it before i bought it... Being that it is an old Rockwell, the shift pattern is backwards from anything I'd ever seen before. So, when i bought the truck, I had no idea that I had it in 4-HI for the first 3 months (summer). I finally got around to playing with it, and realized that the shifter was worn, and you had to hold your tongue just right to get it into 2 WD...

03-08-2006, 07:24 PM	#7
1969 GMC Registered User Join Date: Feb 2003 Location: The Rubber City Posts: 5,498	Re: Rockwell xfer case ????? When I got my truck (SM465/married 221) the transmission shifter had the pattern on it, but not the transfer case shifter. The knob just had a knurled edge around it. There was no shift pattern sticker, either. All of the other Rockwell T221 equipped trucks I've seen were the same way. __________________ 1969 GMC K2500 1996 Honda Accord 2007 Kawasaki KLR 650 Last edited by 1969 GMC; 03-08-2006 at 07:25 PM.

03-09-2006, 11:39 AM	#8
Yukon Jack Post Whore Join Date: Feb 2000 Location: Rose Hill, KS, USA Posts: 12,684	Re: Rockwell xfer case ????? Same here, the t/c shifter knobs I have seen for the Rockwell are smooth tops with knurled edge. __________________ 1970 Blazer with a 400 sbc and 4" lift 1980 Pontiac Trans Am, 455 Oldsmobile 2012 Kawasaki Concours 14 Last edited by Yukon Jack; 03-09-2006 at 11:39 AM.

03-09-2006, 10:16 PM	#9
full foot notch Registered User Join Date: Apr 2003 Location: Central florida Posts: 3,223	Re: Rockwell xfer case ????? theres a M37/rockwell case going in my truck, is your case the twin rod setup that moves in and out of the case, and is a 4yoke case, or is it a 3 yoke case, lemme know, i have an online rebuild manual i tihnk for the 221 and has shift pattern in it

03-10-2006, 12:38 AM	#10
red71cheyenne Back in the sticks Join Date: Jan 2001 Location: Fordland, MO Posts: 3,188	Re: Rockwell xfer case ????? Mine only has the front and rear yokes. I have a sticker with the shift pattern, though, so no worries. I was just trying to find out of the pattern was shown on the knob or boot retainer as well. Thanks, Jeff. __________________ 1971 Cheyenne C-10 w/700R4 and Tuned Port Injection 1969 K5 Blazer w/Tuned Port 2010 2SS/RS Flaming Orange Camaro 2011 K1500 Suburban 2014 K1500 Pickup 2008 Nissan Altima? The wifes' hoopty

03-10-2006, 02:55 PM	#11
boundstaffpress Jamie Hyneman is my twin Join Date: Nov 2005 Location: La Junta, Colorado Posts: 705	Re: Rockwell xfer case ????? Don't know what x-fer case it had, but my dad's 71 had a pattern in the knob. __________________ Justin SOLD 1967 K10 Fleetside, 283, Front and Rear Posi SOLD Color Wiring Diagrams Now in High Resolution V8 and Cab and Cab and Chassis

03-10-2006, 06:50 PM	#13
full foot notch Registered User Join Date: Apr 2003 Location: Central florida Posts: 3,223	Re: Rockwell xfer case ????? depending on the year the M37 had either the 3yoke NP200 style that also appeared in power wagons, or a rockwell case that has 4 yokes(the top thru one that was used as a parking brake on the back side), ive got it in the back of my truck if any info is needed

03-11-2006, 07:23 PM	#14
'68OrangeSunshine Senior Member Join Date: Feb 2002 Location: Tucson, AZ USA Posts: 7,452	Re: Rockwell xfer case ????? Do any of the vendors still carry a shift pattern decal for the Rockwell T221? __________________ Every 25 years I like to rebuild that 292, whether it needs it or not.

03-11-2006, 09:33 PM	#15
JAKES 68GMC Aluminum slot wheels rule... Join Date: Jan 2006 Location: Maine Posts: 6,212	Re: Rockwell xfer case ????? LMC or Chevy duty has them.

03-12-2006, 12:46 AM	#16
Canadian694x4 Born To Lose Club Join Date: Feb 2003 Location: Calgary, Alberta/Oxenden, Ontario, Great White North Posts: 13,308	Re: Rockwell xfer case ????? The PO of my Truck Mounted the Old Rockwell Knob (no Shift Pattern)on the shifter for a NP208 in my Truck... __________________ Brian Smith - "Born To Lose" 1969 Chevrolet K10 LWB Fleetside - Proud Owner For 22 Yrs - 1 of 208 Built & Sold In Canada!- 283 V8/350TH/NP208, 2" All Spring Lift, 32" Good Year MT/R's. 1972 GMC K2500 Custom LWB Fleetside - Proud Owner For 3 Yrs - 1 of 571 Built & Sold In Canada! - 350 V8/SM465/NP205, 4” Rough Country Lift, 33” Interco TSL Thornbirds 2007.5 GMC Sierra SLE 2500HD 4x4 - Proud Owner For 17 Yrs- 6.6L V8 Duramax Diesel/Allison 1000, 2" Lift, 33" Mickey Thompson MTZ's. 2008 Yamaha Raptor 700r - Proud Owner For 15 Yrs - ITP Mud Lites. 2015 John Deere 1025R - Proud Owner For 8 Yrs - 24HP Diesel/H120/54D/260B/SB1154.

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