Wheel Backspacing

mustrick · 11-25-2001, 09:37 PM

I BOUGHT A SET OF MICKEY THOMSON ET STREETS THIS WEEKEND
AT THE OHIO FORD SUPER SWAP. THEY ARE SIZE 28X12.5. I WANT TO USE THEM ON MY 87 MUSTANG GT. I'M GOING TO ORDER 15X10
WHEELS FOR THEM BUT I DON'T KNOW WHAT BACK SPACING TO USE. DOES ANYONE KNOW FOR A FACT WHAT IT HAS TO BE?

87 GT, 393W, 10.7:1 COMP, 600 LIFT ROLLER, VICTOR JR HEADS
& INTAKE, REWORKED HOLLEY 750 DBL PUMP,90/10'S,MOROSO SPRINGS,SOUTHSIDE LIFT BARS,STOCK 8.8 WITH 4:30 GEAR,C-4 WITH 4000RPM GER STALL
RAN BEST OF 11.06@122MPH
WAS WOUND OUT TO FAR AT END OF TRACK, AND TRANNY SLIPPED A LITTLE BETWEEN SECOND &3RD
SO I HAD TRANNY REBUILT & BOUGHT 8.8 WITH 4:11'S, SPOOL, AND 33 SPLINE MOSER AXELS AT SUPER SWAP FOR $800
I ALSO HAVE A BIG SHOT NOS KIT THAT I'VE HAD FOR A YEAR BUT NEVER INSTALLED BECAUSE OF STOCK REAR END. I HOPE TO RUN HIGH 9'S WITH 150 SHOT OF JUICE. ANY ONE THINK IT'S POSSIBLE?

Ron1 · 11-25-2001, 11:48 PM

Sure its possible, but depending on your safety gear, you may only do it once. You need a 10 point, full fire suit, boots, gloves. All SFI as far as trannie shield, flexplate, flexplate shield (or JW Ultrabell instead) window net, and too much else to list. You are also adding quite a bit of weight with the new rims and tires. A buddy of mine actually slowed down when he went from a 10.5 inch tire to a 13.5 inch by 3/10th of a second. Too much drag. Sorry...couldn't help with the back spacing but good luck.

Ron

11-25-2001, 09:37 PM	#1
mustrick Registered Member Join Date: Nov 2001 Location: MUSKEGON MI. Posts: 1	Wheel Backspacing I BOUGHT A SET OF MICKEY THOMSON ET STREETS THIS WEEKEND AT THE OHIO FORD SUPER SWAP. THEY ARE SIZE 28X12.5. I WANT TO USE THEM ON MY 87 MUSTANG GT. I'M GOING TO ORDER 15X10 WHEELS FOR THEM BUT I DON'T KNOW WHAT BACK SPACING TO USE. DOES ANYONE KNOW FOR A FACT WHAT IT HAS TO BE? 87 GT, 393W, 10.7:1 COMP, 600 LIFT ROLLER, VICTOR JR HEADS & INTAKE, REWORKED HOLLEY 750 DBL PUMP,90/10'S,MOROSO SPRINGS,SOUTHSIDE LIFT BARS,STOCK 8.8 WITH 4:30 GEAR,C-4 WITH 4000RPM GER STALL RAN BEST OF 11.06@122MPH WAS WOUND OUT TO FAR AT END OF TRACK, AND TRANNY SLIPPED A LITTLE BETWEEN SECOND &3RD SO I HAD TRANNY REBUILT & BOUGHT 8.8 WITH 4:11'S, SPOOL, AND 33 SPLINE MOSER AXELS AT SUPER SWAP FOR $800 I ALSO HAVE A BIG SHOT NOS KIT THAT I'VE HAD FOR A YEAR BUT NEVER INSTALLED BECAUSE OF STOCK REAR END. I HOPE TO RUN HIGH 9'S WITH 150 SHOT OF JUICE. ANY ONE THINK IT'S POSSIBLE?

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11-25-2001, 11:48 PM	#2
Ron1 Registered Member Join Date: Sep 1999 Location: Vancouver, WA USA Posts: 439	Sure its possible, but depending on your safety gear, you may only do it once. You need a 10 point, full fire suit, boots, gloves. All SFI as far as trannie shield, flexplate, flexplate shield (or JW Ultrabell instead) window net, and too much else to list. You are also adding quite a bit of weight with the new rims and tires. A buddy of mine actually slowed down when he went from a 10.5 inch tire to a 13.5 inch by 3/10th of a second. Too much drag. Sorry...couldn't help with the back spacing but good luck. Ron