Which Timbren Rear Suspension SES Fits 1994 Ford E350 B190 Air Stream Conversion with 6" Lift?

Updated 02/19/2026 | Published 02/14/2026

Products Featured in This Question

Timbren Rear Suspension Enhancement System

(6795)

$398.07

Timbren 1/2" Spacer For Raised Frame Vehicles - 1/2" bushing

(22)

$8.29

Timbren 1" Spacer For Raised Frame Vehicles - 1/2" Bushing

(27)

$16.57

Question:

Hello… I saw that you offer Timbren’s rear-axle SES kits replace your OEM bump stops and provide additional support to your vehicle’s suspension. I have an RV, a 1994 Ford E350 B190 Airstream 4x4 conversion lifted 6 inches, and the axle 1 weighs 4000 lbs and axle 2 weighs 6720 lbs. What do you recommend I install without using air suspension systems? Thanks

asked by: Alberto M

Expert Reply:

Hey there Alberto,

Since your 1994 B190 Airstream is built on the E350 chassis you'll want the Timbren # TFER35092LB. This gives you 6,000lbs of additional support to your suspension. Keep in mind your actual leaf springs are carrying the majority of the weight, these just help support those springs but do not give you any increased capacity in towing or payload.

Now you mentioned a 6" lift, but most 6" lifts are only about 4" in the rear. These Timbrens need a gap of 1/2" to 1-1/2" between the frame and itself, so you'll need a mix spacers # TA25723-90AD00 which are 1" and # TA25722-90F00 which are 1/2" to make up that gap. Unfortunately all I can do is guess to how many you need, but 4-5 of the 1" spacers likely would get you close. You will need to source new M10 x 1.5 bolts in the correct length for the additional spacers.

Do you do mainly campsite camping? or do you get to do some off-grid camping in your B190?

expert reply by: Samuel C