Help Determine Unknown Lift Size 77 K10 - The 1947 - Present Chevrolet & GMC Truck Message Board Network

semperfidoordie · 10-08-2012, 10:16 PM

Need help figuring out what size lift is on my truck. PO didn't know just said a lift haha. The tires are 33x12.50r15s. I can take measurements if that would help. All I know is the shocks on it are Pro Comp so I would imagine the lift is. Any help is appreciated!

DirtyLarry · 10-08-2012, 11:52 PM

Looks like a 4" lift.

semperfidoordie · 10-09-2012, 12:01 AM

Dang...kind of figured but oh well. I guess I will look for a 6" or 8" lift...

semperfidoordie · 10-09-2012, 01:16 AM

anyone know the max lift you can go without modifying driveshafts?

Redcap · 10-09-2012, 01:21 AM

Quote:

Originally Posted by semperfidoordie

anyone know the max lift you can go without modifying driveshafts?

6" if you aren't wheeling it hard, 4" if you are.

semperfidoordie · 10-09-2012, 08:04 PM

Really? Anyone have any "trimmed" fender pics so I can see since I'm trying to run some bigger tires than this 4" will let me.

wwj75c30 · 10-09-2012, 08:27 PM

looks like a 6" my friends 4" is pretty small so i guess a 6"

semperfidoordie · 10-09-2012, 08:37 PM

Anyone know the size lift blocks it would run for either lift? Also anyone have a hub to fender measurement for either size lift?

GSP7 · 10-09-2012, 11:25 PM

Took these tonight. The trim was probably done when the truck was new in 1981. I bought it when it was 5 years old.

It had 33" BFGs on 10" wide rims and no lift stock. I have 35/12.5/16.5, 35" tires on 10" wide rims same as 315/75/16s.

I put 4" superlift springs and 2" rear blocks. I dont like when the back sets higher than the front. Its a 8600gvw k20. Didnt want it 6" when I did it 20 years ago, because I had a lance camper for it

Its never rubbed in 30 years. I dont know if it even needed trimming with the 4" lift and 35" tires, probably did

semperfidoordie · 10-10-2012, 10:16 PM

Nice! Thanks man. that is a great looking truck. I will probably be running 36s for now whenever money permits. Any way you could get me measurements from your hub to wheel well opening?

s_nova69 · 10-11-2012, 12:43 AM

You have a 4" lift. I have had several trucks with both 4 and 6 of the same generation. If u want 36s then a 6" would be needed to clear and not rub much. I beat the crap out of mine and had 35" MTRs on it. The drivelines are only as strong as the weakest link. Usually they fail at the weakest link not because they are too weak overall. A 6" kit can come different ways but usually it has 6" front springs and 4" rear blocks with a 2" add a leaf. You would probably be able to figure put what size front springs u have by checking the label on them. Unless they are really old the label is probably still on them.

You can get away w 36s w a 4" but clearancing the front fenders will be necessary. The only time my 35s would rub was at max articulation and the wheel turned one way but not the other.

Hope that helps. Nice truck. They are pretty tuff. A rear locker will get u a long ways
Posted via Mobile Device

GSP7 · 10-11-2012, 03:34 PM

Quote:

any way you could get me measurements from your hub to wheel well opening?

26 1/4 "

10-08-2012, 10:16 PM	#1
semperfidoordie Fix It Till It's Broke Join Date: Apr 2007 Location: 29 Palms, CA Posts: 1,616	Help Determine Unknown Lift Size 77 K10 Need help figuring out what size lift is on my truck. PO didn't know just said a lift haha. The tires are 33x12.50r15s. I can take measurements if that would help. All I know is the shocks on it are Pro Comp so I would imagine the lift is. Any help is appreciated! Attached Images __________________ Tony Black Beauty: 85 C-10 SOLD! Great White: 69 LWB Custom Camper/20 SOLD! Blue Dragon: 72 K-10 SOLD! The Tank 77 K-10 KIA panhandler62: Just don't search for "trannys" no matter how hard yours shifts -- you just won't get what you are looking for. I Made The Official So Cal Board Meet Last edited by semperfidoordie; 10-08-2012 at 10:29 PM. Reason: added a pic

10-08-2012, 11:52 PM	#2
DirtyLarry Windy Corner of a Dirty Street Join Date: Jun 2003 Location: Pueblo West, Colorado Posts: 2,926	Re: Help Determine Unknown Lift Size 77 K10 Looks like a 4" lift. __________________ Current vehicle collection: 1978 Chevrolet K10, 8.1L, NV4500, NP205 1989 Chevrolet Suburban, 8.1L, NV4500, NP241 1993 Chevrolet C1500 Sportside, TBI 7.4L, 4L60E 2001 Chevrolet K2500HD, Ext Cab, SWB, 8.1L, ZF 6 speed 2014 Chevrolet Impala LTZ 3.6L Vortec 8.1L because life is too short to tolerate underpowered vehicles Instagram

10-09-2012, 12:01 AM	#3
semperfidoordie Fix It Till It's Broke Join Date: Apr 2007 Location: 29 Palms, CA Posts: 1,616	Re: Help Determine Unknown Lift Size 77 K10 Dang...kind of figured but oh well. I guess I will look for a 6" or 8" lift... __________________ Tony Black Beauty: 85 C-10 SOLD! Great White: 69 LWB Custom Camper/20 SOLD! Blue Dragon: 72 K-10 SOLD! The Tank 77 K-10 KIA panhandler62: Just don't search for "trannys" no matter how hard yours shifts -- you just won't get what you are looking for. I Made The Official So Cal Board Meet

10-09-2012, 01:16 AM	#4
semperfidoordie Fix It Till It's Broke Join Date: Apr 2007 Location: 29 Palms, CA Posts: 1,616	Re: Help Determine Unknown Lift Size 77 K10 anyone know the max lift you can go without modifying driveshafts? __________________ Tony Black Beauty: 85 C-10 SOLD! Great White: 69 LWB Custom Camper/20 SOLD! Blue Dragon: 72 K-10 SOLD! The Tank 77 K-10 KIA panhandler62: Just don't search for "trannys" no matter how hard yours shifts -- you just won't get what you are looking for. I Made The Official So Cal Board Meet

10-09-2012, 08:04 PM	#6
semperfidoordie Fix It Till It's Broke Join Date: Apr 2007 Location: 29 Palms, CA Posts: 1,616	Re: Help Determine Unknown Lift Size 77 K10 Really? Anyone have any "trimmed" fender pics so I can see since I'm trying to run some bigger tires than this 4" will let me. __________________ Tony Black Beauty: 85 C-10 SOLD! Great White: 69 LWB Custom Camper/20 SOLD! Blue Dragon: 72 K-10 SOLD! The Tank 77 K-10 KIA panhandler62: Just don't search for "trannys" no matter how hard yours shifts -- you just won't get what you are looking for. I Made The Official So Cal Board Meet

10-09-2012, 08:27 PM	#7
wwj75c30 Registered User Join Date: Oct 2011 Location: oakdale ca Posts: 552	Re: Help Determine Unknown Lift Size 77 K10 looks like a 6" my friends 4" is pretty small so i guess a 6" __________________ 75 c30 silverado drw 454/th400hd d70 soon to have d60 up front 73 c20 custom deluxe sm465 14bff parts truck

10-09-2012, 08:37 PM	#8
semperfidoordie Fix It Till It's Broke Join Date: Apr 2007 Location: 29 Palms, CA Posts: 1,616	Re: Help Determine Unknown Lift Size 77 K10 Anyone know the size lift blocks it would run for either lift? Also anyone have a hub to fender measurement for either size lift? __________________ Tony Black Beauty: 85 C-10 SOLD! Great White: 69 LWB Custom Camper/20 SOLD! Blue Dragon: 72 K-10 SOLD! The Tank 77 K-10 KIA panhandler62: Just don't search for "trannys" no matter how hard yours shifts -- you just won't get what you are looking for. I Made The Official So Cal Board Meet

10-09-2012, 11:25 PM	#9
GSP7 Registered User Join Date: Sep 2012 Location: Idaho Posts: 652	Re: Help Determine Unknown Lift Size 77 K10 Took these tonight. The trim was probably done when the truck was new in 1981. I bought it when it was 5 years old. It had 33" BFGs on 10" wide rims and no lift stock. I have 35/12.5/16.5, 35" tires on 10" wide rims same as 315/75/16s. I put 4" superlift springs and 2" rear blocks. I dont like when the back sets higher than the front. Its a 8600gvw k20. Didnt want it 6" when I did it 20 years ago, because I had a lance camper for it Its never rubbed in 30 years. I dont know if it even needed trimming with the 4" lift and 35" tires, probably did __________________ '81 K20 Silverado , '99 Dodge Cummins 4x4, '05 Dodge Cummins 4x4, Pinstriping-Lettering-Specialty Painting Last edited by GSP7; 10-09-2012 at 11:46 PM.

10-10-2012, 10:16 PM	#10
semperfidoordie Fix It Till It's Broke Join Date: Apr 2007 Location: 29 Palms, CA Posts: 1,616	Re: Help Determine Unknown Lift Size 77 K10 Nice! Thanks man. that is a great looking truck. I will probably be running 36s for now whenever money permits. Any way you could get me measurements from your hub to wheel well opening? __________________ Tony Black Beauty: 85 C-10 SOLD! Great White: 69 LWB Custom Camper/20 SOLD! Blue Dragon: 72 K-10 SOLD! The Tank 77 K-10 KIA panhandler62: Just don't search for "trannys" no matter how hard yours shifts -- you just won't get what you are looking for. I Made The Official So Cal Board Meet

10-11-2012, 12:43 AM	#11
s_nova69 Registered User Join Date: Jul 2007 Location: slc, ut Posts: 318	Re: Help Determine Unknown Lift Size 77 K10 You have a 4" lift. I have had several trucks with both 4 and 6 of the same generation. If u want 36s then a 6" would be needed to clear and not rub much. I beat the crap out of mine and had 35" MTRs on it. The drivelines are only as strong as the weakest link. Usually they fail at the weakest link not because they are too weak overall. A 6" kit can come different ways but usually it has 6" front springs and 4" rear blocks with a 2" add a leaf. You would probably be able to figure put what size front springs u have by checking the label on them. Unless they are really old the label is probably still on them. You can get away w 36s w a 4" but clearancing the front fenders will be necessary. The only time my 35s would rub was at max articulation and the wheel turned one way but not the other. Hope that helps. Nice truck. They are pretty tuff. A rear locker will get u a long ways Posted via Mobile Device __________________ Phil '70 Longhorn 421 700r4 tach 4 wheel disc hydroboost daily driver '72 short super build 4wd '72 Suburban LT4 coming soon!!

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