6L90 Column Shift questions - The 1947 - Present Chevrolet & GMC Truck Message Board Network

Chvy2NV · 02-01-2021, 10:51 PM

Currently mocking up a 6.0 / 6L90 To my 67. Wondering what you guys are using as shift cable to the column shifter ?
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Andy4639 · 02-01-2021, 11:53 PM

I have seen the Lokar shift cable used by some. I went with the rod kit for the 68 step. It was a 700-R4 though.

https://www.summitracing.com/parts/l...IaAgJ8EALw_wcB

87Skier · 02-02-2021, 04:41 AM

I used the original column and the top half of the shift linkage. I bought a lokar linkage kit. From that I used about 6" of the rod and a rod end bearing and welded the two halves together.

The slip bolt used on the original linkage helped with setup, and means that only throw length and transmission shift lever angle need to be worked out to get a good working setup.

My 6l90e has P R N D M 1 which matches to the P R N D 3 2 1 of the original. Some 6L90 have an extra quadrant for a different pattern. You may not be able to use this with the linkage setup. M is also D4 and enables TUTD. HP Tuners, and I assume other tuning software, can change some of the drive quadrants.

Chvy2NV · 02-03-2021, 03:05 PM

[any pics of your setups , thanks ! QUOTE=87Skier;8873652]I used the original column and the top half of the shift linkage. I bought a lokar linkage kit. From that I used about 6" of the rod and a rod end bearing and welded the two halves together.

The slip bolt used on the original linkage helped with setup, and means that only throw length and transmission shift lever angle need to be worked out to get a good working setup.

My 6l90e has P R N D M 1 which matches to the P R N D 3 2 1 of the original. Some 6L90 have an extra quadrant for a different pattern. You may not be able to use this with the linkage setup. M is also D4 and enables TUTD. HP Tuners, and I assume other tuning software, can change some of the drive quadrants.[/QUOTE]
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87Skier · 02-05-2021, 04:07 AM

Attached are some pictures.

Where the rod gets narrower near the transmission is the lokar piece. The rod may be difficult to spot when looking between the transmission and frame rail, but it is just behind the trans cooler hoses. I made a heat shield here. It obscures the view from above.

My only complaint is the bit of slack in my original column.

02-01-2021, 10:51 PM	#1
Chvy2NV Registered User Join Date: Apr 2012 Location: So. Florida Posts: 873	6L90 Column Shift questions Currently mocking up a 6.0 / 6L90 To my 67. Wondering what you guys are using as shift cable to the column shifter ? Posted via Mobile Device

02-01-2021, 11:53 PM	#2
Andy4639 Old member Join Date: Jan 2002 Location: Liberty, & Garden City S.C. , U.S. Posts: 19,945	Re: 6L90 Column Shift questions I have seen the Lokar shift cable used by some. I went with the rod kit for the 68 step. It was a 700-R4 though. https://www.summitracing.com/parts/l...IaAgJ8EALw_wcB __________________ 1971 LWB Custom, 6.0LS & 4L80E, Speedhut.com GPS speedometer & gauges with A/C. 20" Boss 338's Grey wheels 4 wheel disc brakes. My Driver Seeing the USA in a 71 Upstate SC GM Truck Club 2013,14 and 2016 Hot Rod Pour Tour http://upstategmtrucks.com/ Get out and drive the truck this summer and have some fun! It sucks not being able to hear! LWB trucks rule, if you don't think so measure your SWB! After talking to tech support at Air Lift I have found out that the kit I need is 60811. Per the measurements I gave them. Ride height of truck inside spring and inside diameter of springs.

02-02-2021, 04:41 AM	#3
87Skier Registered User Join Date: Mar 2014 Location: Corvallis, OR Posts: 715	Re: 6L90 Column Shift questions I used the original column and the top half of the shift linkage. I bought a lokar linkage kit. From that I used about 6" of the rod and a rod end bearing and welded the two halves together. The slip bolt used on the original linkage helped with setup, and means that only throw length and transmission shift lever angle need to be worked out to get a good working setup. My 6l90e has P R N D M 1 which matches to the P R N D 3 2 1 of the original. Some 6L90 have an extra quadrant for a different pattern. You may not be able to use this with the linkage setup. M is also D4 and enables TUTD. HP Tuners, and I assume other tuning software, can change some of the drive quadrants. __________________ 1972 GMC Jimmy Custom 4.8L (L20)/6L90E/NP205 1989 Chevy Suburban V2500 350/Turbo 400/4.11 gears 1996 Chevy Suburban K1500 350/4L60E

02-05-2021, 04:07 AM	#5
87Skier Registered User Join Date: Mar 2014 Location: Corvallis, OR Posts: 715	Re: 6L90 Column Shift questions Attached are some pictures. Where the rod gets narrower near the transmission is the lokar piece. The rod may be difficult to spot when looking between the transmission and frame rail, but it is just behind the trans cooler hoses. I made a heat shield here. It obscures the view from above. My only complaint is the bit of slack in my original column. Attached Images __________________ 1972 GMC Jimmy Custom 4.8L (L20)/6L90E/NP205 1989 Chevy Suburban V2500 350/Turbo 400/4.11 gears 1996 Chevy Suburban K1500 350/4L60E

02-03-2021, 03:05 PM	#4
Chvy2NV Registered User Join Date: Apr 2012 Location: So. Florida Posts: 873	[any pics of your setups , thanks ! QUOTE=87Skier;8873652]I used the original column and the top half of the shift linkage. I bought a lokar linkage kit. From that I used about 6" of the rod and a rod end bearing and welded the two halves together. The slip bolt used on the original linkage helped with setup, and means that only throw length and transmission shift lever angle need to be worked out to get a good working setup. My 6l90e has P R N D M 1 which matches to the P R N D 3 2 1 of the original. Some 6L90 have an extra quadrant for a different pattern. You may not be able to use this with the linkage setup. M is also D4 and enables TUTD. HP Tuners, and I assume other tuning software, can change some of the drive quadrants.[/QUOTE] Posted via Mobile Device



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