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bop 8.2 non posi

  
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bop 8.2 non posi

 
firebirdblack69 firebirdblack69
New User | Posts: 3 | Joined: 11/13
Posted: 11/27/13
06:23 PM

Im trying to put posi unit....will it hold up ... Burnouts street tires??? 69 firebird pontiac 400  

4zpeed 4zpeed
Enthusiast | Posts: 351 | Joined: 04/13
Posted: 11/27/13
06:32 PM

You would be better off with a 8.5, and if your really planning on shredding the tires go with a 12 bolt.

Grin  
Poncho huggen gear snatchen posi piro.

ROWSLEY ROWSLEY
Guru | Posts: 981 | Joined: 07/11
Posted: 11/28/13
11:55 PM

+1 zspeed a 8.5 would be better but the 8.2 should hold up as long you don't use sticky tires! the pinion will twist off at the yoke if the tires hook hard under power.

i would keep an eye out for a 8.5 out of an x body (nova,ventura)up to 1974. you can use a 8.5 out of a 70 up fbody and 75 up xbody if you relocate the spring perch 1/2" in on each side. they are a lot easer to find and cheaper than 12 bolts

i would also install a driveshaft loop at the rear so that when it does break the driveshaft doesn't beat up the floor or take out the tranny!! very common.  
76 455/4spd TRANS AM
69 GRAND PRIX 455/5SPD