Crazy Option? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

**uncle** · 05-02-2007, 09:17 PM

I bought a 1 ton today that was originally a camper, but it has no park on the indicator. You cannot put the trans. in park. Has anyone ever had one of these and can the trans. be converted back? Is there such a thing as a lock out on the inside of the trans.? It's a 400 trans. and I didn't see anything unusual on it either.

**special-K** · 05-02-2007, 09:21 PM

It`s missing the park cog and they made a special indicator w/o park.These were the first autos put in 1t trucks and they feared people relying on park tohold the trucks w/o the hand brake.My`70 CustomCamper/30 had that set-up,as did any 1t with auto.

**uncle** · 05-02-2007, 09:26 PM

How much trouble to change this in the trans?

1970bowtie · 05-02-2007, 10:09 PM

bandit1 · 05-02-2007, 10:22 PM

all the 60's gm 1 1/2 tons and stuff that i have seen have no park you just the handbrake.

jeffspower · 05-02-2007, 10:29 PM

The 1-1/2 tons & larger had Allison transmissions-no park & no way to put one in it. The 400 should have the provision in the case for the pawl- but I can't say for sure as I haven't been into one of these non- park 400's. If the provision is there, it should be easy to drop the pan and install a pawl & actuator rod. I'd be curious to know if the pawl is in there, just no actuator rod.

jeffspower · 05-02-2007, 10:33 PM

Hmmn, or could all the internals be there, just a lockout in the column mechanisim? Pulling the linkage off at the trans shift shaft & trying to rotate it into park would tell the story.

**special-K** · 05-03-2007, 01:08 PM

I was "told" just the pawl was missing.
Hey Uncle,is that a "Sun" tach?

**uncle** · 05-03-2007, 03:33 PM

The previous owner said he tried removing the linkage, but there was still no park. Thanks for the response.

LUV2XCLR8 · 05-03-2007, 03:53 PM

Quote:

Originally Posted by special-K

Hey Uncle,is that a "Sun" tach?

Too funny Tim

05-02-2007, 09:17 PM	#1
uncle Senior Member Join Date: Aug 2003 Location: Conyers,Ga. Posts: 7,288	Crazy Option? I bought a 1 ton today that was originally a camper, but it has no park on the indicator. You cannot put the trans. in park. Has anyone ever had one of these and can the trans. be converted back? Is there such a thing as a lock out on the inside of the trans.? It's a 400 trans. and I didn't see anything unusual on it either. Attached Images

05-02-2007, 09:21 PM	#2
special-K Special Order Join Date: Nov 2004 Location: Mt Airy, MD Posts: 85,851	Re: Crazy Option? It`s missing the park cog and they made a special indicator w/o park.These were the first autos put in 1t trucks and they feared people relying on park tohold the trucks w/o the hand brake.My`70 CustomCamper/30 had that set-up,as did any 1t with auto. __________________ "BUILDING A BETTER WAY TO SERVE THE USA"......67/72......"The New Breed" GMC '67 C1500 Wideside Super Custom SWB: 327/M22/3.42 posi.........."The '67" (project) GMC '72 K2500 Wideside Sierra Custom Camper: 350/TH350/4.10 Power-Lok..."The '72" (rolling) Tim "Don't call me a redneck. I'm a rough cut country gentleman" R.I.P. ~ East Side Low Life ~ El Jay ~ 72BLUZ ~ Fasteddie69 ~ Ron586 ~ 67ChevyRedneck ~ Grumpy Old Man ~

05-02-2007, 09:26 PM	#3
uncle Senior Member Join Date: Aug 2003 Location: Conyers,Ga. Posts: 7,288	Re: Crazy Option? How much trouble to change this in the trans?

05-02-2007, 10:09 PM	#4
1970bowtie Senior Member Join Date: Apr 2007 Location: East Texas Posts: 549	Re: Crazy Option? __________________ Justin 1970 c/10 short wide bed My build thread WTT 1970 chevy front end for 67/68 chevy front end WTT 2 15x10 american racing outlaw 2 wheels for 2 of the same in a 15x7 or 15x8

05-02-2007, 10:22 PM	#5
bandit1 Registered User Join Date: Jan 2007 Location: Victoria B.C Posts: 35	Re: Crazy Option? all the 60's gm 1 1/2 tons and stuff that i have seen have no park you just the handbrake. __________________ 1969 GMC 910 1970 GMC 1500 custom 1972 yamaha 175 "Money is just like trucks you can never have enough"

05-02-2007, 10:29 PM	#6
jeffspower Well, Whoop-dee-do! Join Date: Mar 2003 Location: Easton, Mo. pop.- me & scarcely a few others Posts: 2,302	Re: Crazy Option? The 1-1/2 tons & larger had Allison transmissions-no park & no way to put one in it. The 400 should have the provision in the case for the pawl- but I can't say for sure as I haven't been into one of these non- park 400's. If the provision is there, it should be easy to drop the pan and install a pawl & actuator rod. I'd be curious to know if the pawl is in there, just no actuator rod. __________________ '68 GMC shortbox 4x4 350/SM465/T221- bought it in '83 SOLD '72 K20 500 Cad/TH400/NP205 SOLD '92 Chevy 2500 6.5 mech TD 4L80E crusty daily driver '72 Monte Carlo... sweet low mile toy '11 Dodge Challenger IE 392 6spd... midlife car

05-02-2007, 10:33 PM	#7
jeffspower Well, Whoop-dee-do! Join Date: Mar 2003 Location: Easton, Mo. pop.- me & scarcely a few others Posts: 2,302	Re: Crazy Option? Hmmn, or could all the internals be there, just a lockout in the column mechanisim? Pulling the linkage off at the trans shift shaft & trying to rotate it into park would tell the story. __________________ '68 GMC shortbox 4x4 350/SM465/T221- bought it in '83 SOLD '72 K20 500 Cad/TH400/NP205 SOLD '92 Chevy 2500 6.5 mech TD 4L80E crusty daily driver '72 Monte Carlo... sweet low mile toy '11 Dodge Challenger IE 392 6spd... midlife car

05-03-2007, 01:08 PM	#8
special-K Special Order Join Date: Nov 2004 Location: Mt Airy, MD Posts: 85,851	Re: Crazy Option? I was "told" just the pawl was missing. Hey Uncle,is that a "Sun" tach? __________________ "BUILDING A BETTER WAY TO SERVE THE USA"......67/72......"The New Breed" GMC '67 C1500 Wideside Super Custom SWB: 327/M22/3.42 posi.........."The '67" (project) GMC '72 K2500 Wideside Sierra Custom Camper: 350/TH350/4.10 Power-Lok..."The '72" (rolling) Tim "Don't call me a redneck. I'm a rough cut country gentleman" R.I.P. ~ East Side Low Life ~ El Jay ~ 72BLUZ ~ Fasteddie69 ~ Ron586 ~ 67ChevyRedneck ~ Grumpy Old Man ~

05-03-2007, 03:33 PM	#9
uncle Senior Member Join Date: Aug 2003 Location: Conyers,Ga. Posts: 7,288	Re: Crazy Option? The previous owner said he tried removing the linkage, but there was still no park. Thanks for the response.



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