Maximum Tire Size? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

sbc421 · 07-11-2002, 11:17 AM

1970 Model C10 LWB Stock Suspension (Coil Springs)
How wide can I go on the back with out any rubbage? I would like to run Mickey Thompson E/T Street Tires
31 x 16.5...Suggested Rim Width 12"...Outside Diameter 31.0"...Tread Width 13.0"
All feedback wellcomed.

Thanks In Advance,

Low69CST · 07-11-2002, 12:27 PM

depending on how much your rear end is lowered determins if it will fit. If the top of the tire will clear the wheel well, you could get back spacing to p ush it out of the wheel well anc clear the bed. If not, then you'll be doing some cutting to get those to fit. My have to relocate the bump stop though.

sbc421 · 07-11-2002, 05:04 PM

Thanks for the reply 69... I have removed my fender wells from the bed of the truck, looks like i can cut about 3 inches of meat out of the floor of the bed and still have about an inch and a half between the sidewall of a tire installed on a wheel with an extreme offset. I am going to run Centerline Drag Star wheels, they are offered in just about whatever offset needed. I think I am going to cut about 3 1/2 inches out of the middle of another set of fender wells I have and heli arch them into a seam I will cut in the center of my current fender wells. That way I will retain a semi-stock look in the bed and still have some mini tubs.

Stepside · 07-11-2002, 08:07 PM

sbc421, I'm running the same size on my 70. 31 16.50's Mickeys.
I bought Vintage Wheels "ralleys" with 8" inside offset. Your tubbing method will work perfect. Although, I want to try 29 18.50's with the same setup. The 31's are too tall for my likes.
Stepside

sbc421 · 07-12-2002, 12:40 PM

I got this response from another board...
Thanks for the reply...

You can go as big as 15x14" w/10" backspace & 31x18.5 MickeyThompson Sportsmans w/o changing the frame, suspension, or rear end width. I had this size on my restorod 67 short-wide & used custom widened ralleys. Of course it did require tubbing the bed to fit & the e-brake cables were hooked up but I never actually used the e-brake during the period the tires were on the truck so I can't say for sure whether they worked but the tires cleared & didn't rub the body or frame.

SCOTI
__________________
67SWB-RestoRod,68SWB-Beater, Dallas,Tx.

Low69CST · 07-12-2002, 01:44 PM

Your signature reads like your building a monster, what are you going to do with that thing?

07-11-2002, 11:17 AM	#1
sbc421 Registered User Join Date: Jul 2002 Location: La Porte, TX Posts: 24	Maximum Tire Size? 1970 Model C10 LWB Stock Suspension (Coil Springs) How wide can I go on the back with out any rubbage? I would like to run Mickey Thompson E/T Street Tires 31 x 16.5...Suggested Rim Width 12"...Outside Diameter 31.0"...Tread Width 13.0" All feedback wellcomed. Thanks In Advance, __________________ 1970 Model C10 LWB, Small Block 421 CID, AFR 220 Heads, 1050 Dominator, Super Victor Intake, Comp Cams Mech Roller, Comp Cams ProMagnum Roller Rockers, 13.8:1 Compression, 4500 RPM TCI Converter, TH400 TCI Transmission w/reverse manual valve body w/trans brake, 5.13 Rear Gear on a full Spool, 31-16.50-15 Mickey Thompson ET Streets

07-11-2002, 12:27 PM	#2
Low69CST Registered User Join Date: May 2000 Location: Frankfort, Kentucky, USA Posts: 2,163	depending on how much your rear end is lowered determins if it will fit. If the top of the tire will clear the wheel well, you could get back spacing to p ush it out of the wheel well anc clear the bed. If not, then you'll be doing some cutting to get those to fit. My have to relocate the bump stop though. __________________ '69 CST Short fleetside Lowered, 400 small block, 700R4, 4 wheel disc brakes, front sway bar & rear camaro sway bar (in progress) '87 V10 4x4 Short Fleetside Quad Suspension and Dual Tanks

07-11-2002, 05:04 PM	#3
sbc421 Registered User Join Date: Jul 2002 Location: La Porte, TX Posts: 24	Thanks for the reply 69... I have removed my fender wells from the bed of the truck, looks like i can cut about 3 inches of meat out of the floor of the bed and still have about an inch and a half between the sidewall of a tire installed on a wheel with an extreme offset. I am going to run Centerline Drag Star wheels, they are offered in just about whatever offset needed. I think I am going to cut about 3 1/2 inches out of the middle of another set of fender wells I have and heli arch them into a seam I will cut in the center of my current fender wells. That way I will retain a semi-stock look in the bed and still have some mini tubs. __________________ 1970 Model C10 LWB, Small Block 421 CID, AFR 220 Heads, 1050 Dominator, Super Victor Intake, Comp Cams Mech Roller, Comp Cams ProMagnum Roller Rockers, 13.8:1 Compression, 4500 RPM TCI Converter, TH400 TCI Transmission w/reverse manual valve body w/trans brake, 5.13 Rear Gear on a full Spool, 31-16.50-15 Mickey Thompson ET Streets

07-11-2002, 08:07 PM	#4
Stepside Gasser Join Date: May 2000 Location: Thomasville,NC USA Posts: 456	sbc421, I'm running the same size on my 70. 31 16.50's Mickeys. I bought Vintage Wheels "ralleys" with 8" inside offset. Your tubbing method will work perfect. Although, I want to try 29 18.50's with the same setup. The 31's are too tall for my likes. Stepside __________________ :thud 70 sstep tubbed, Muncie, double hump, snowflake,

07-12-2002, 12:40 PM	#5
sbc421 Registered User Join Date: Jul 2002 Location: La Porte, TX Posts: 24	I got this response from another board... Thanks for the reply... You can go as big as 15x14" w/10" backspace & 31x18.5 MickeyThompson Sportsmans w/o changing the frame, suspension, or rear end width. I had this size on my restorod 67 short-wide & used custom widened ralleys. Of course it did require tubbing the bed to fit & the e-brake cables were hooked up but I never actually used the e-brake during the period the tires were on the truck so I can't say for sure whether they worked but the tires cleared & didn't rub the body or frame. SCOTI __________________ 67SWB-RestoRod,68SWB-Beater, Dallas,Tx. __________________ 1970 Model C10 LWB, Small Block 421 CID, AFR 220 Heads, 1050 Dominator, Super Victor Intake, Comp Cams Mech Roller, Comp Cams ProMagnum Roller Rockers, 13.8:1 Compression, 4500 RPM TCI Converter, TH400 TCI Transmission w/reverse manual valve body w/trans brake, 5.13 Rear Gear on a full Spool, 31-16.50-15 Mickey Thompson ET Streets

07-12-2002, 01:44 PM	#6
Low69CST Registered User Join Date: May 2000 Location: Frankfort, Kentucky, USA Posts: 2,163	Your signature reads like your building a monster, what are you going to do with that thing? __________________ '69 CST Short fleetside Lowered, 400 small block, 700R4, 4 wheel disc brakes, front sway bar & rear camaro sway bar (in progress) '87 V10 4x4 Short Fleetside Quad Suspension and Dual Tanks



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