88 xr7 8.8 5 lug rear disc swap help

Topic: 88 xr7 8.8 5 lug rear disc swap help (Read 3268 times) previous topic - next topic

88 xr7 8.8 5 lug rear disc swap help

June 19, 2013, 06:29:09 PM

hey having problem with axles i pull from 94 mustang base model to short to install disc brake everything i reads says they should work but there not can install caliper brackets axle doesn't stick out far enough. could use help asap

88 xr7 8.8 5 lug rear disc swap help

Reply #1 – June 19, 2013, 07:25:32 PM

Post pics of the issue?

88 xr7 8.8 5 lug rear disc swap help

Reply #2 – June 19, 2013, 10:35:53 PM

Get out your tape measure and compare the width of the rear end housing to the chart found in THIS POST.

The 8.8 in the '88 XR-7 *should* have the same width housing as the 87-88TC/94-98 Mustang, but you might have an oddball. The axles would be the proper length, so something is up with the housing, or perhaps your install of the caliper brackets.

88 xr7 8.8 5 lug rear disc swap help

Reply #3 – June 19, 2013, 11:17:40 PM

Chuck,

Would ABS exciter rings on the 94 Mustang axles cause issues??? I would think if they had them he would have to remove them to get enough length for them to work correctly.

Darren

88 xr7 8.8 5 lug rear disc swap help

Reply #4 – June 19, 2013, 11:31:15 PM

Quote from: Aerocoupe;417340

Chuck,

Would ABS exciter rings on the 94 Mustang axles cause issues??? I would think if they had them he would have to remove them to get enough length for them to work correctly.

Darren

No, they shouldn't. He's saying the axle isn't sticking out far enough, so they're something else amiss.

88 xr7 8.8 5 lug rear disc swap help

Reply #5 – June 20, 2013, 12:00:14 PM

It's possible that the ABS rings may be an issue, but since OP didn't say yes/no if the axles had them, it's speculation.

My thoughts exactly on the rear's width. Something isn't kosher. The rear is wider than it should be, OR the axles aren't '94-98 length units, OR the ABS rings are indeed on there.

I did look at the chart again after OP posted, I couldn't find a housing dimension for the XR7 8.8 rear listed? I may have missed it though. Posting on my phone right now so have no way to check.

88 xr7 8.8 5 lug rear disc swap help

Reply #6 – June 20, 2013, 12:12:45 PM

The ABS rings wouldn't cause the issue he described (axle not sticking out far enough). At least the way I see it.

88 xr7 8.8 5 lug rear disc swap help

Reply #7 – June 20, 2013, 12:30:21 PM

Simple if the axle does not stick out enough you need longer ones!!!

88 xr7 8.8 5 lug rear disc swap help

Reply #8 – June 20, 2013, 08:57:45 PM

Thanks guys but did some more research and found out that the axle housing is 3/4" longer on each side on the 88 xr7 8.8 rearends and that is comparing the two 88 xr7's i have. And both measure the same they measure at 19 1/4 from from backing plate mount to the center where the tube inserts to the carrier and the stock axles are the same length as the 94 to 98 sn95 so longer axles or get mustang rear end so I got mustang rear end and with the new disc brake setup will have the original track width in the rear as before so no offset issues thanks for your help guys . So to install rear disc on a stock housing I would suggest the 99 to 04 rear brake system with the longer axles for the 88 xr7

88 xr7 8.8 5 lug rear disc swap help

Reply #9 – June 20, 2013, 10:56:50 PM

Basically, if you want to go 5 lug, regardless of brake setup, you're going to want/need to use '94-'98 Mustang axles, unless you want to play with custom offset wheels and silly (and dangerous) spacer plates.

Sounds like you've got it figured out now.

88 xr7 8.8 5 lug rear disc swap help

Reply #10 – June 20, 2013, 11:33:44 PM

found answer on a mustang forum where someone was looking at using my style rear end in stang

88 xr7 8.8 5 lug rear disc swap help

Reply #11 – June 22, 2013, 07:30:10 AM

Quote from: ThunderbirdSport302;417378

Basically, if you want to go 5 lug, regardless of brake setup, you're going to want/need to use '94-'98 Mustang axles, unless you want to play with custom offset wheels and silly (and dangerous) spacer plates.

Sounds like you've got it figured out now.

THANK GOD someone has some great advice and i am going to save your post 302!!!

Other than myself i find it refreshing that someone other than me has determined and has posted that WHEEL SPACERS ARE DANGEROUS. Thank you so much 302 i thought i was the only one that feels the same. I get POUNDED on this on other Forums. Thanks for posting the dangers of spacers.

88 xr7 8.8 5 lug rear disc swap help

Reply #12 – June 22, 2013, 07:40:20 AM

Sometimes i get axles and cut them down to make different lengths. Or custom ones can be ordered from vendors. I have a chart with every axle length for most rear ends. Randys has them listed by splines and overall length. Just saying. No photos any more from me as i got pounded for posting photos on another issue about brakes.

88 xr7 8.8 5 lug rear disc swap help

Reply #13 – June 22, 2013, 10:04:14 AM

I guess the 1/4" hubcentric wheel spacers on the rear of my Coupe are dangerous? Come on guys, if you are going to post up some shiznit like that please qualify the basis of your statement with something like "if you have the stock stud lengths".

Darren

88 xr7 8.8 5 lug rear disc swap help

Reply #14 – June 22, 2013, 10:30:09 AM

That is kinda the obvious thing, no?

And hubcentric, where the loads aren't just on the studs themselves are better than say those cheap pieces of shiznit you find in the backs of the car mags.

Anyway, the thread prompted me to take that axle/rearend chart and do some research to fill in the missing gaps, as far as some of the missing data. I know it's not first hand, field-measured data, but i cross checked the (few) missing bits I could find with at least 2 other sources to make sure the particular dimension was in fact "correct"...

What it boils down to is...if you want 31 spline axles, there is nothing factory that will work without mods in our cars. Must go aftermarket.

(but I'm sure some of y'all knew that long ago, excuse me for being a late bloomer lol)