1985 GMC stepper 4 inch lift questions! - The 1947 - Present Chevrolet & GMC Truck Message Board Network

SnowNeck · 07-22-2013, 02:13 PM

Hey yall, just trying to get all my ducks in older,I'm going to be running 33' MTZs, It's a 1985 GMC High Sierra short bed stepside 305 4x4, gearing is 3.08. Alright so im going to be being a 4 inch EZ Ride tuff country lift with blocks in the rear and a add a leaf too in the rear, maybe. I'm curious will i need to lengthen my drive shaft, or anything else?

Rubble · 07-22-2013, 02:34 PM

Done a couple 4" lifts & here's what I had to do: driveshaft should be fine,but mine were LWB trucks,changed to a raised pitman arm,brake lines were ok,but may depend on your application.The 3:08s might be too much for the 33s,but again depends on your wants& needs.If I missed anything,somebody will jump in...
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dieseldawg142 · 07-22-2013, 07:35 PM

33's, 305, 3:08's = a nice scenic ride!
my old K5 had a 4", didn't do nothing to the driveshafts, also used raised steering arm.

Rubble · 07-22-2013, 08:29 PM

I had a brain fart there! Was thinking about my 80 K10 with 4" lift.I ran 31s a long time with 2.73s,it worked good,but when I put 33s on it was too much.Went to 3:42s & that was way better! I did that lift really cheap,didn't even change the pitman arm either & it worked ok.Your 3:08s should be fine...
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SnowNeck · 07-22-2013, 08:55 PM

Quote:

Originally Posted by dieseldawg142

33's, 305, 3:08's = a nice scenic ride!
my old K5 had a 4", didn't do nothing to the driveshafts, also used raised steering arm.

I don't know haha, ill hit the gas rolling around 20 and it'll let loose, got a nicer carb and long tube headers, aint a 350 by no means... but it keeps up! hits 95 too!.... nice speeding ticket later

haha. and Alright thanks for the feed back!

SnowNeck · 07-22-2013, 08:57 PM

Quote:

Originally Posted by Rubble

I had a brain fart there! Was thinking about my 80 K10 with 4" lift.I ran 31s a long time with 2.73s,it worked good,but when I put 33s on it was too much.Went to 3:42s & that was way better! I did that lift really cheap,didn't even change the pitman arm either & it worked ok.Your 3:08s should be fine...
Posted via Mobile Device

Good to know! hah, and thank you for all the feed back

07-22-2013, 02:13 PM	#1
SnowNeck Registered User Join Date: May 2012 Location: Pennsylvania Posts: 132	1985 GMC stepper 4 inch lift questions! Hey yall, just trying to get all my ducks in older,I'm going to be running 33' MTZs, It's a 1985 GMC High Sierra short bed stepside 305 4x4, gearing is 3.08. Alright so im going to be being a 4 inch EZ Ride tuff country lift with blocks in the rear and a add a leaf too in the rear, maybe. I'm curious will i need to lengthen my drive shaft, or anything else? __________________ 1985 High Sierra step side 4x4

07-22-2013, 02:34 PM	#2
Rubble Registered User Join Date: Feb 2012 Location: Big Valley. Alberta Posts: 674	Re: 1985 GMC stepper 4 inch lift questions! Done a couple 4" lifts & here's what I had to do: driveshaft should be fine,but mine were LWB trucks,changed to a raised pitman arm,brake lines were ok,but may depend on your application.The 3:08s might be too much for the 33s,but again depends on your wants& needs.If I missed anything,somebody will jump in... Posted via Mobile Device __________________ 1977 Chev C30 454/465/14ff DRW 1974 Chev C20.350/465/14ff " Rock n Roll ain't noise pollution"

07-22-2013, 07:35 PM	#3
dieseldawg142 Registered User Join Date: Jul 2011 Location: back 40, bc Posts: 3,872	Re: 1985 GMC stepper 4 inch lift questions! 33's, 305, 3:08's = a nice scenic ride! my old K5 had a 4", didn't do nothing to the driveshafts, also used raised steering arm.

07-22-2013, 08:29 PM	#4
Rubble Registered User Join Date: Feb 2012 Location: Big Valley. Alberta Posts: 674	Re: 1985 GMC stepper 4 inch lift questions! I had a brain fart there! Was thinking about my 80 K10 with 4" lift.I ran 31s a long time with 2.73s,it worked good,but when I put 33s on it was too much.Went to 3:42s & that was way better! I did that lift really cheap,didn't even change the pitman arm either & it worked ok.Your 3:08s should be fine... Posted via Mobile Device __________________ 1977 Chev C30 454/465/14ff DRW 1974 Chev C20.350/465/14ff " Rock n Roll ain't noise pollution"



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