axle width of an FB?

Whizbang · 11-07-2009, 07:47 PM

any have a tape measure and what to get the width, hub to hub of an rx7 axle?

t_g_farrell · 11-09-2009, 09:38 AM

I just measured a rear end I have laying around and its 57 inches from the hub face to hub face. I measured the distance from the outside edges of each brake backing plate, 54 inches. Then I measured the distance from the outside edge of the backing plate to the edge of axle flange, 1.5 inches. So 54 + (2*1.5) = 57 inches. This is an SA rearend but should be the same for 81-83 FB axles for sure. Not sure if the GSL or SE axles are any different.

Whizbang · 11-09-2009, 04:51 PM

interesting that means i could probably run the 59.5 inch wide mustang 8.8 without modification to the axles. Just fiddle with the offset of the wheels if needs be.

Rogue_Wulff · 11-13-2009, 09:40 AM

The SE axles are a bit longer. SE rearend is closer to the same width as the mustang 8.8, so using it you would need wheels with the same offset that are typically used on SE's. Around +35 to +45, depending on wheel width.

sen2two · 11-13-2009, 03:54 PM

the 8.8 solid rear is only a half inch longer than the stock 1st gen rears on each side (making it one inch longer in total). wich is plenty fine to just put it right in there. and they now have gears all the way up to 6.14 for it since it's getting more popular to use.

11-07-2009, 07:47 PM	#1
Whizbang Respecognize! Join Date: Jul 2008 Location: Δx = ħ/2Δp Posts: 3,190 Rep Power: 21	axle width of an FB? any have a tape measure and what to get the width, hub to hub of an rx7 axle? __________________ For current updates and event coverage check out Follow on Twitter! @WhizbangRally Whizbang Rally's Webpage \| Facebook

11-09-2009, 09:38 AM	#2
t_g_farrell Waffles - hmmm good Join Date: Aug 2008 Location: Huntersville, NC Posts: 757 Rep Power: 0	I just measured a rear end I have laying around and its 57 inches from the hub face to hub face. I measured the distance from the outside edges of each brake backing plate, 54 inches. Then I measured the distance from the outside edge of the backing plate to the edge of axle flange, 1.5 inches. So 54 + (2*1.5) = 57 inches. This is an SA rearend but should be the same for 81-83 FB axles for sure. Not sure if the GSL or SE axles are any different. __________________ 1980 GS stockport, Fat Nikki, RB Dual Facetfuel pumps, Holley regulator, RB Street port exhaust, 2GDFIS, MR2 MK I electric fans, 2G strut bar, relayed fans, lights and fuel pump, LEDs Project Fat Nikki Budget 12A rebuild Video setup < $30.00

11-09-2009, 04:51 PM	#3
Whizbang Respecognize! Join Date: Jul 2008 Location: Δx = ħ/2Δp Posts: 3,190 Rep Power: 21	interesting that means i could probably run the 59.5 inch wide mustang 8.8 without modification to the axles. Just fiddle with the offset of the wheels if needs be. __________________ For current updates and event coverage check out Follow on Twitter! @WhizbangRally Whizbang Rally's Webpage \| Facebook

11-13-2009, 03:54 PM	#5
sen2two KTEC Join Date: Jan 2009 Posts: 642 Rep Power: 0	the 8.8 solid rear is only a half inch longer than the stock 1st gen rears on each side (making it one inch longer in total). wich is plenty fine to just put it right in there. and they now have gears all the way up to 6.14 for it since it's getting more popular to use. __________________ what I have: 1985 Gs:12a All motor Drag car - 1973 Rx2: Play car What I had: 93 Touring: TRADED - 91 Coupe: TRADED - 90 GTU: RHD - 88 10AE: SOLD - 87 Base: SOLD - 86 Base: SOLD - 1985 GSLSE - 85 Gsl: SOLD - 80 Gs: TRADED - 1972 Rx2

11-13-2009, 09:40 AM	#4
Rogue_Wulff Non Member Join Date: Jun 2008 Posts: 310 Rep Power: 18	The SE axles are a bit longer. SE rearend is closer to the same width as the mustang 8.8, so using it you would need wheels with the same offset that are typically used on SE's. Around +35 to +45, depending on wheel width.