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-   -   5/7 lowering kit tire help (https://67-72chevytrucks.com/vboard/showthread.php?t=834606)

fishhore 05-18-2022 03:26 PM

5/7 lowering kit tire help
 
Just picked up 59,000 mile original swb and ordered a 5/7 syndicate series drop kit from switch and was wondering if anyone is running this and what tire size you’re running or if you guys can help me decide on a front tire size. Switch recommends a 27” tall tire. Iv been searching on here all week and see some people are getting away with a 245/40r20. Front wheels I bought are 20x8 with 4.5BS. Can’t decide between a 245/40 at 27.7 tail or a 255/35 at 27 tall. Want to keep the inner fender on

fishhore 05-18-2022 03:34 PM

Re: 5/7 lowering kit tire help
 
1 Attachment(s)
Pic of the truck

Street Smart 05-18-2022 05:50 PM

Re: 5/7 lowering kit tire help
 
Australian model?

72LB 05-18-2022 06:17 PM

Re: 5/7 lowering kit tire help
 
1 Attachment(s)
Quote:

Originally Posted by Street Smart (Post 9080630)
Australian model?

:lol:

Fixed it for ya.

fishhore 05-18-2022 06:20 PM

Re: 5/7 lowering kit tire help
 
Lol thanks for fixing that

Big Chip 05-20-2022 08:27 AM

Re: 5/7 lowering kit tire help
 
Quote:

Originally Posted by Street Smart (Post 9080630)
Australian model?

Hahaha!!!

LT7A 05-20-2022 10:40 AM

Re: 5/7 lowering kit tire help
 
Quote:

Originally Posted by Street Smart (Post 9080630)
Australian model?

:lol:

SCOTI 05-21-2022 07:38 PM

Re: 5/7 lowering kit tire help
 
1 Attachment(s)
Quote:

Originally Posted by fishhore (Post 9080560)
Just picked up 59,000 mile original swb and ordered a 5/7 syndicate series drop kit from switch and was wondering if anyone is running this and what tire size you’re running or if you guys can help me decide on a front tire size. Switch recommends a 27” tall tire. Iv been searching on here all week and see some people are getting away with a 245/40r20. Front wheels I bought are 20x8 with 4.5BS. Can’t decide between a 245/40 at 27.7 tail or a 255/35 at 27 tall. Want to keep the inner fender on

I'd prefer as tall a sidewall as possible so the 245/40 would be my choice. But, like you mentioned, it will likely buzz the top of the inner wheel tub. The front's in this pic were 255/40's so 28" tall. They were on there for one night for a local cruise. I barely made it down my alley. Any bump or dip over 5mph, they buzzed.

I would do taller inner tubs before I'd run 255/35's though. Short sidewalls just don't work as well visually on these trucks in my honest opinion.....

KQQL IT 05-21-2022 10:37 PM

Re: 5/7 lowering kit tire help
 
That looks perfect

fishhore 06-02-2022 12:47 PM

Re: 5/7 lowering kit tire help
 
2 Attachment(s)
Well got the lowering kit on. Front only lowered 4 inches and the rear 7 so had to pull the rear shackles off and put the stock ones back on. May still pull the front springs out and cut them to bring the front down another inch but I’m gonna give it a few weeks to see if the front settles at all. Went with 245/40 in the front, thanks for the pic and info on that scoti.

SCOTI 06-02-2022 01:05 PM

Re: 5/7 lowering kit tire help
 
Looks good!

How do you feel about ride quality so far?

fishhore 06-02-2022 03:56 PM

Re: 5/7 lowering kit tire help
 
Quote:

Originally Posted by SCOTI (Post 9086366)
Looks good!

How do you feel about ride quality so far?

Ride is great. It still had the factory shocks on it before it was lowered and they were obviously shot so this feels like a big upgrade in ride and handling.

SCOTI 06-02-2022 04:41 PM

Re: 5/7 lowering kit tire help
 
Quote:

Originally Posted by fishhore (Post 9086424)
Ride is great. It still had the factory shocks on it before it was lowered and they were obviously shot so this feels like a big upgrade in ride and handling.

Good!

Shugalou 06-03-2022 04:01 PM

Re: 5/7 lowering kit tire help
 
Quote:

Originally Posted by SCOTI (Post 9082063)
I'd prefer as tall a sidewall as possible so the 245/40 would be my choice. But, like you mentioned, it will likely buzz the top of the inner wheel tub. The front's in this pic were 255/40's so 28" tall. They were on there for one night for a local cruise. I barely made it down my alley. Any bump or dip over 5mph, they buzzed.

I would do taller inner tubs before I'd run 255/35's though. Short sidewalls just don't work as well visually on these trucks in my honest opinion.....

Scoti - do you have more info on that wheel set up - I agree I'm not a fan of the thin sidewalls on our trucks - probably looks even more off on a stepside. Are the rims Torque Thursts in Grey? I've been looking at the same ones or possibly the dark chrome.

SCOTI 06-03-2022 04:39 PM

Re: 5/7 lowering kit tire help
 
1 Attachment(s)
Quote:

Originally Posted by Shugalou (Post 9086870)
Scoti - do you have more info on that wheel set up - I agree I'm not a fan of the thin sidewalls on our trucks - probably looks even more off on a stepside. Are the rims Torque Thursts in Grey? I've been looking at the same ones or possibly the dark chrome.

They were Coys C5's

20 x 8.5" w/255/40's (4" sidewall)
20x10 5.5"bs w/295/40's (4.6" sidewall)

benz88 06-03-2022 11:29 PM

Re: 5/7 lowering kit tire help
 
2 Attachment(s)
5/7 here with 245/45r20 front and 305/35r20 rear. Front only rubs on big dips due to needing new front shocks. I had 245/40s on the front and hated the ride. The 45 series sidewall adds just enough cushion

Attachment 2196369

Shugalou 06-04-2022 08:21 AM

Re: 5/7 lowering kit tire help
 
Thanks for the info Scoti! Benz that 5mm makes that big of a difference? Thanks guys I'm in the research process and never thought much about sidewall height.

Sorry to threadjack

benz88 06-04-2022 08:49 AM

Re: 5/7 lowering kit tire help
 
IMO it did, Atleast for me. Although now the front tires .5" taller than the rear haha

SCOTI 06-04-2022 12:53 PM

Re: 5/7 lowering kit tire help
 
Quote:

Originally Posted by Shugalou (Post 9087084)
Thanks for the info Scoti! Benz that 5mm makes that big of a difference? Thanks guys I'm in the research process and never thought much about sidewall height.

Sorry to threadjack

When the move to 17's & larger started, the OE manufactures targeted ~4" sidewall height @ a minimum most likely as a preventative thing so the mass public driving around our pot-hole filled universe wouldn't be coming in weekly to warranty exchange a fubar'd wheel/tire. It makes sense.

As always, the taller the sidewall on simarly constucted tires, the more compliant the ride.


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