08-28-2024, 05:51 AM
I have been going through air bag replacement on my drive axle . The original Firestone part also crosses to the 1R11-066 .
I checked with Newell , they have the bags on the shelf at $950 each . Out of the question for me .
The Goodyear / Infinity catalog is available online as a searchable pdf . A valuable tool , another great referral from Richard .
I ended up getting air bags from Fleet Pride .
P/N HDV9422 , just under $100 each .
These are a cross from the 1R11-028 .
The top stud spacing is the same , with one 3/4 instead of 1/2 " . The larger stud is also the air Inlet with female 1/4 pipe thread .
The base (piston) is composite , and has two 1/2 " studs instead of original single stud .
On mine I needed to stay with the single hole at the bottom , so I cut the two studs off flush and installed a stud in place of the bolt that came in the bag .
Per Richard's advice I bypassed the ping tanks , plumbed the 3/8 tubing direct from the valves .
I have only done a 30 mile shake down , but all is good so far .
Chris
I checked with Newell , they have the bags on the shelf at $950 each . Out of the question for me .
The Goodyear / Infinity catalog is available online as a searchable pdf . A valuable tool , another great referral from Richard .
I ended up getting air bags from Fleet Pride .
P/N HDV9422 , just under $100 each .
These are a cross from the 1R11-028 .
The top stud spacing is the same , with one 3/4 instead of 1/2 " . The larger stud is also the air Inlet with female 1/4 pipe thread .
The base (piston) is composite , and has two 1/2 " studs instead of original single stud .
On mine I needed to stay with the single hole at the bottom , so I cut the two studs off flush and installed a stud in place of the bolt that came in the bag .
Per Richard's advice I bypassed the ping tanks , plumbed the 3/8 tubing direct from the valves .
I have only done a 30 mile shake down , but all is good so far .
Chris
1986 #89
VIN 007
Detroit 8V92 TA 475 HP
Allison four speed
Chris and Sharon Hand